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1. Assignment task in informatica 2. what is a source qualifier?- It represents all data queried from the source. 3. What is a Shortcut and What is the difference between a Shortcut and a Reusable Transformation? 4. What is difference between source based commit) and target based commit? 5. what types of Errors occur when you run a session, can you describe them with real time example 6. What is key factor in BRD? 7. How to implement de-normalization concept in Informatica Mappings? 8. What is intermediate task in informatica? In what situation this task will be executed? 9. How many types of facts and what are they? 10. Performance tuning in Informatica? 11. How to append records in flat file using Informatica?For eg : In Datastage we can append the records in flat file(sequential file) using the options i) overwrite the existinf file.ii) Append the existing file. 12. How to append the records in flat file(Informatica) ? Where as in Datastage we have the options i) overwrite the existing fileii) Append existing file 13. how to get the first 100 rows from the flat file into the target? 14. Explain pmcmd? 15. Explain Session Recovery Process? 16. in which particular situation we use unconnected lookup transformation? 17. parameter file how to create parameter file and how to use it in a mapping explain with example

INFORMATICA FAQS

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Page 1: INFORMATICA FAQS

1. Assignment task in informatica

2. what is a source qualifier?- It represents all data queried from the source.

3. What is a Shortcut and What is the difference between a Shortcut and a Reusable Transformation?

4. What is difference between source based commit) and target based commit?

5. what types of Errors occur when you run a session, can you describe them with real time example

6. What is key factor in BRD?

7. How to implement de-normalization concept in Informatica Mappings?

8. What is intermediate task in informatica? In what situation this task will be executed?

9. How many types of facts and what are they?

10. Performance tuning in Informatica?

11. How to append records in flat file using Informatica?For eg : In Datastage we can append the records in flat file(sequential file) using the options i) overwrite the existinf file.ii) Append the existing file.

12. How to append the records in flat file(Informatica) ? Where as in Datastage we have the options i) overwrite the existing fileii) Append existing file

13. how to get the first 100 rows from the flat file into the target?

14. Explain pmcmd?

15. Explain Session Recovery Process?

16. in which particular situation we use unconnected lookup transformation?

17. parameter file how to create parameter file and how to use it in a mapping explain with example

18. aggregator transformation how does sorted input works in aggregator transformation

19. Informatica Working with flat files how can we display delimiters beside column names of target flat file?

20.How many repositories can we create in Informatica?What is aggregate awareness?

21. How can we delete duplicate rows from your source in mapping without using SELECT DISTINCT option in source qualifier?

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22. What is Target Update Override? What is the Use ?

23. When we are having data in the target table and there are no primary key or foreign key mentioned in the target table then how will you update as well as insert the data?

24. 1.how to enter same record twice in target table? give me syntax.2. how to get particular record from the table in informatica?3.how to create primary key only on odd numbers?4. how to get the records starting with particular letter like A in informatica?

25. How can you join two tables without using joiner and sql override transformations?

26. Can u start a batches with in a batch? U can not. If u want to start batch that resides in a batch,create a new independent batch and copy the necessary sessions into the new batch.

27. Can u copy the batches?

28. What is the difference between SQL Overriding in Source qualifier and Lookup transformation?

29. Informatica : set statement in update Need to update the existing records,The record which is coming for update should be inserted and also the previous record's one column must be modified. i have used look up to look up the data.used ro

30. Informatica sessions what is the difference between a session and a task?

31. What is source qualifier transformation? When U add a relational or a flat file source definition to a maping,U need to connect it to a source qualifer transformation.The source qualifier transformation represnets the records that the inform

32. What are tracing levels in transformation?

33. What are Meta Data Extenstions used in an informatica mapping? What is the significance,usage and how informatica handles them?

34. In your mapping using sequence generator transformation, the limitation of the transformation is it generates key values only around 2 million. If it is more than 3 million records are there in your source, how will you generate key values and load into target.

35. why do we need lookup sql override? Do we write sql override in lookup with special aim?

36. Informatica union transformation What is the practical use of a union transformation?

37. How many types of TASKS we have in Workflomanager? What r they?

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38. What is the size of data mart?

39. Repository deletion what happens when a repository is deleted?If it is deleted for some time and if we want to delete it permanently?where is stored (address of the file)

40. Informatica objects File Format What is the file extension and format of the files for the Informatica objects like Mappings, sessions etc in the repository ?

41. how to use the shared cache feature in look up transformation

42. what are the steps follow in performance tuning ?

43. In case of use of dynamic lookup cache in a lookup transformation, the lookup cache gets updated first and then the target table. What happens if the target table rejects a row after it is updated in the Cache?

44. In which condtions we can not use joiner transformation(Limitaions of joiner transformation)? Both pipelines begin with the same original data source. Both input pipelines originate from the same Source Qualifier transformation. Both input pipelines originate from the same Normalizer transform

45. What is the use of Shared Folder?

46. What is Informatica basic data flow?

47. what is the difference between reusable transformation and mapplets?

48. What is the functionality of Lookup Transformation (connected & un connected) Asked by: M.Maheswar Reddy

49. How do you maintain Historical data and how to retrieve the historical data?

50. Which transformation replaces the look up transformation?

51. What are Dimensions and various types of Dimensions? set of level properties that describe a specific aspect of a business, used for analyzing the factual measures of one or more cubes, which use that dimension. Egs. Geography, time, customer and produc

52. What is pre-session and post-session?

53. which activities can be performed using the repository manager?

54. what is the difference between source qualifier transformation and filter transformation?

55. What r the diffrence between joiner transformation and source qualifier transformation? U can join hetrogenious data sources in joiner transformation which we can not achieve in source qualifier transformation. U need matching keys to join two relational sources in source qualifier trans

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56. why do we use reusable sequencegenerator transformation only in mapplet?

57. what is the economic comparision of all the Informatica versions?

58. What is one disadvantage of using an unconnected (sometimes called function mode) Lookup transformation? (1) If there is no match in the Lookup condition, the Informatica server returns a transformation error(2) A reusable unconnected Lookup can not have more than one instance in a mapping(3) An unconnected Lookup transformation does not support user-defined default values(4) An unconnected Lookup transformation does not support a static lookup cache

59. when we create a target as flat file and source as oracle.. how can i specify first rows as column names in flat files..

60. Eliminate Duplicate Records

61. How to assign a work flow to multiple servers? I have multiple servers, I want to assign a work flow to multiple servers Asked by: SRIRAM N

62. What are the locks with respect to mappings?How do you manually lock or unlock the mappings for chages?

63. What is the default join that source qualifier provides? Inner equi join.

64. How to read rejected data or bad data from bad file and reload it to target?

65. Discuss the advantages & Disadvantages of star & snowflake schema?

66. Can U use the maping parameters or variables created in one maping into another maping?

67. If i done any modifications for my table in back end does it reflect in informatca warehouse or maping desginer or source analyzer? NO. Informatica is not at all concern with back end data base.It displays u all the information that is to be stored in repository.If want to reflect back end changes to informatica screens, again u h

68. Suppose I have one source which is linked into 3 targets.When the workflow runs for the first time only the first target should be populated and the rest two(second and last) should not be populated.When the workflow runs for the second time only the second target should be populated and the rest two(first and last) should not be populated.When the workflow runs for the third time only the third target should be populated and the rest two(first and second) should not be populated.Could any one

69. total how many joiner transformations needed to join 10 different sources.(recent tcs intervie w question)

70. How do you migrate from one environment to another like development to production in Informatica.

71. In what all transformations the mapplets cant be used in informatica??

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72. What r the mapings that we use for slowly changing dimension table? Type1: Rows containing changes to existing dimensions are updated in the target by overwriting the existing dimension. In the Type 1 Dimension mapping, all rows contain current dimension data.

74. Can we revert back reusable transformation to normal transformation?

75. inteview questionwhy do u use a reusable sequence genator tranformation in mapplets?

76. 1)how can we delete the cache files while we using aggregator transformaation?2)exlain about cache files handling in informatica3) there are two flat files and the two flat files contain two fileds as states.both the flat files contain duplicates how to eliminate this duplicates?4) can we use lookup transformation with out using source qualifier transformation?

77. When do you use Normal Loading and the Bulk Loading, Tell the difference?

78. How do you define fact less Fact Table in Informatica

79. What is Repository size, What is its min and max size?

80. would you recommend using an orderby clause as part of a lookup sql override for a cached lookup da81. Have you implmented Lookup in your mapping, If yes give some example?

82. What is aggregate cache in aggregator transforamtion? The aggregator stores data in the aggregate cache until it completes aggregate calculations.When u run a session that uses an aggregator transformation,the informatica server creates index and data ca

83. What does the first column of bad file (rejected rows) indicate? Explain

84. how do you measure slowly changing dimensions using lookup table

85. What is the difference between source definition database and source qualifier?

86. What is the logic will you implement to load data into a fact table from n dimension tables?

87. what is semi additve measuresand fully additive measures

88. how do you add and delete header , footer records from flat file during load to oracle?

89. What is the maplet? Maplet is a set of transformations that you build in the maplet designer and U can use in multiple mapings.

90. What r two types of processes that informatica runs the session?

91. Hi Allwhat is the logic will you implement to laod the data in to one factv from 'n' number of dimension tables.

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92. what is update strategy transformation ? This transformation is used to maintain the history data or just most recent changes in to target table.

93. What r the connected or unconnected transforamations? An unconnected transforamtion is not connected to other transformations in the mapping.Connected transforamation is connected to other transforamtions in the mapping.

94. What r the mapping paramaters and maping variables?

95. Does Informatica provide a SAS exit in any of its products? What I am trying to determine is if I could invoke a SAS session from within Informatica's ETL product(s) in order to execute a complicated transformation written in SAS which would then return the re

96. Which SDLC suits best for the datawarehousing project.

97. in Dimensional modeling fact table is normalized or denormalized?in case of star schema and incase of snow flake schema?

98. What is granularity in INFORMATICA? How should be the level of granularity for a fact table as well as for a dimension table?

99. What r the active and passive transforamtions?

100. What r the designer tools for creating tranformations?

101. What is Session and Batches? Session - A Session Is A set of instructions that tells the Informatica Server How And When To Move Data From Sources To Targets.

102. What is Data Transformation Manager? After the load manager performs validations for the session, it creates the DTM process. The DTM process is the second process associated with the session run. The primary purpose of the DTM process i

103. Why we use lookup transformations? Lookup Transformations can access data from relational tables that are not sources in mapping. With Lookup transformation, we can accomplish the following tasks:Get a related value-Get the Employee N

104. Source Qualifier in Informatica What is the Technical reason for having Source Qualifier in Informatica? Can a mapping be implemented without it? (Please don't mention the functionality of SQ) but the main reason why a mapping can't 105. where does the records goes which does not satisfy condition in filter transformation?

106. How can U create or import flat file definition in to the warehouse designer? U can not create or import flat file defintion in to warehouse designer directly.Instead U must analyze the file in source analyzer,then drag it into the warehouse designer.When U drag the flat file s

107. How do you identify existing rows of data in the target table using lookup

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transformation? Can identify existing rows of data using unconnected lookup transformation.

108. what are the main issues while working with flat files as source and as targets ?

109. can any one tell why we are populating time dimension only with scripts not with mapping?

110. What are the challenges you have faced in your Project (DWH-ETL)? Explain with example?

111. What r the different options used to configure the sequential batches? Two options Run the session only if previous session completes sucessfully. Always runs the session.

112. What is meant by named cache?At what situation we can use it? Asked by: prakash B S

113. What r the types of lookup caches? Persistent cache: U can save the lookup cache files and reuse them the next time the informatica server processes a lookup transformation configured to use the cache. Recache from database: If the per

114. How can U improve session performance in aggregator transformation? Use sorted input.

115. what is the hierarchies in DWH

116. What will be the way to send only duplicate records to the Target?

117. What is difference between maplet and reusable transformation? Maplet consists of set of transformations that is reusable.A reusable transformation is a single transformation that can be reusable. If u create a variables or parameters in maplet that can not be us

118. In Source Qualifier and in Target I have 1,2,3 row and I want to insert 4,5 records in source and I want them in target also? What is the procedure to load them?

119. What is Router transformation? Router transformation allows you to use a condition to test data. It is similar to filter transformation. It allows the testing to be done on one or more conditions.

120. What are Aggregate transformation?

121. can we lookup a table from a source qualifer transformation-unconnected lookup

122. What is redo log file in Informatica ?.

123. How to run a workflow without using GUI i.e, Worlflow Manager, Workflow Monitor and pmcmd?

124. What are the Commit & Commit Intervals?

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125. We are using Update Strategy Transformation in mapping how can we know whether insert or update or reject or delete option has been selected during running of sessions in Informatica.

126. what is the output for different groups in case of router transformation ifi. 1--Aii.2--Biii.3--A or Biv. 4--A and Bv.5--Default

127. why dimenstion tables are denormalized in nature ?

128. In the source, if we also have duplicate records and we have 2 targets, T1- for unique values and TIn the source, if we also have duplicate records and we have 2 targets, T1- for unique values and T2- only for duplicate values. How do we pass the unique values to T1 and duplicate values to T2 from the source to these 2 different targets in a single mapping?

129i was asked by the interviewer like,in the concept of mapping parameters and variables, the variable value will be saved to the repository after the completion of the session and the next time when u run the session, the server takes the saved variable value in the repository and starts assigning the next value of the saved value. for example i ran a session and in the end it stored a value of 50 to the repository.next time when i run the session, it should start with the value

130. Where and Why do we use Joiner Cache?

131. What is the Router transformation? A Router transformation is similar to a Filter transformation because both transformations allow you to use a condition to test data. However, a Filter transformation tests data for one condition and

132. What is difference between IIF and DECODE function

133. how do you use Normalizer to convert columns into rows ?

134. To provide support for Mainframes source data,which files r used as a source definitions? COBOL files

135. What is the difference between Enterprise data warehouse and a data warehouse ??Which all transform

136. What are the Data Cleansing Tools used in the DWH?What are the Data Profiling Tools used for DWh?

137. What is the best way to modify a mapping if the target table name is changed?

138. What is a Materialized view? Diff. Between Materialized view and view

139. How many ways u create ports? Two ways 1.Drag the port from another transforamtion 2.Click the add buttion on the ports tab.

140. Source table has 1000 rows. In session configuration --- target Load option-- \

141. what transformation you can use inplace of lookup?

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142. what is incremental loading in informatica(that is used to load only updated information in the source)?how and where u use it in informatica?

143. how many types of dimensions are available in informatica?

144. How can we access MAINFRAME tables in INFORMATICA as a source ? ex-: Suppose a table EMP is in MAINFRAME then how can we access this table as SOURCE TABLE in informatica? Asked by: Md Iqbal Hassan

145. How can u stop a batch? By using server manager or pmcmd.

146. what is the main difference bw using an object from shared folder and copying an object and using that copied object ?

147. how do you fine tune the mapping and what methods we follow for different types of transformations?

148. in realtime which one is better star schema or snowflake star schemathe surrogate will be linked to which columns in the dimension table.thanks in advance

149. Can u use the maping parameters or variables created in one maping into any other reusable transformation? Yes.Because reusable tranformation is not contained with any maplet or maping.

150. Can we update target table without using update strategy transformation? why?

151. What is the difference between SQL override in Source Qualifier and SQL override in Look up transformation.

152. What is the difference between power connect and power centre? What is the use of power connect.

153. what is the new lookup port in look-up transformation?

154. What is source based commit and target based commit with an example ? What is the background process that wil be done if you select source based commit or target based commit ?

155. What does Check-In and Check-Out option refer to in the mapping designer? Asked by: sanghala

156. can any body write a session parameter file which will change the source and targets for every session. i.e different source and targets for each session run. thx in advance

157. what is homogeneous transformation?

158. For homogeneous sources we use Source Qualifier to join the sources? Why not the joiner transformation.

159. If a Mapping is running slow, What steps you will take, to correct it?

160. How to delete duplicate rows in flat files source is any option in informatica

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161. How to create slowly changing dimension in informatica?

162. How do you recover a session or folder if you accidentally dropped them?

163. How can you call trigger in stored procedure transformation

164. How do you automatically execute a batch or session?

165. If a session fails after loading of 10,000 records in to the target.How can u load the records from 10001 th record when u run the session next time in informatica 6.1?

166. What is the difference between Power Centre and Power Mart?What is the procedure for creating Independent Data Marts from Informatica 7.1?

167. What are the general reasons of session failure with Look Up having Dynamic Cache?

168. How do we estimate the depth of the session scheduling queue? Where do we set the number of maximum concurrent sessions that Informatica can run at a given time?

169. What r the joiner caches? When a Joiner transformation occurs in a session, the Informatica Server reads all the records from the master source and builds index and data caches based on the master rows. After building the cach

170. Where should U place the flat file to import the flat file defintion to the designer?

171. Why we use stored procedure transformation? For populating and maintaining data bases.

172. What is tracing level and what r the types of tracing level? Tracing level represents the amount of information that informatcia server writes in a log file. Types of tracing level Normal Verbose Verbose init Verbose data

173. What are Target Types on the Server? Target Types are File, Relational and ERP.

174 What happens when the session stops half way while loading? How to join a flat file without matching keys in RDBMS?

175. What r the types of maping wizards that r to be provided in Informatica? The Designer provides two mapping wizards to help you create mappings quickly and easily. Both wizards are designed to create mappings for loading and maintaining star schemas, a series of dimensions

176. What r the reusable transforamtions? Reusable transformations can be used in multiple mappings.When u need to incorporate this transformation into maping,U add an instance of it to maping.Later if U change the definition of the transform

177. what is the gap analysis?

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178. If a session fails after loading of 10,000 records in to the target.How can u load the records from 10001 th record when u run the session next time? As explained above informatcia server has 3 methods to recovering the sessions.Use performing recovery to load the records from where the session fails.

179 what is the mapping for unit testing in Informatica, are there any other testings in Informatica, and how we will do them as a etl developer. how do the testing people will do testing are there any specific tools for testing

180. What r the types of lookup?

181. what is the difference between mapplet and reusable Transformation?

182. How to parse characters using functions in the expression transformation. For example if a column has character like mgr=a. I have to parse the character 'mgr='. Which function should I use?

183. Strategy Transformation By using Update Strategy Transformation we use to maintain historical data using Type2 & Type3. By both of this which is better to use? Why? Asked by: phanimv

184. how do you test mapping and what is associate port?

185. Why can't we use normalizer transformation in mapplet?

186. what is associated port in look up.

187. what is session recovery?

188. What is use of event waiter?

189. which transformation can perform the non equi join?

190. Which objects cannot be used in a mapplet transformation191. What is re-dimension?

192. What is inline view?

193. What is the exact difference between joiner and lookup transformation

194. How do you handle two sessions in Informatica can any one tell me the option between the two session . if previous session execute successfully than run the next session... Asked by: ravi214u

195. Explain about Informatica server process that how it works relates to mapping variables?

196. What are the steps involved in to get source from OLTP system to staging area

197. Why use the lookup transformation ? To perform the following tasks. Get a related value. For example, if your source table includes employee ID, but you want to include the employee name in your target table to make your summary data ea

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198. How can you migrate Mappings and Sessions from informatica 6.2 to informatica 7.1?

199. what are steps invovlved in connecting OLTP system to DATAWARE HOUSE to get the souce from OLTP system

200. How many mappings you have done in your project(in a banking)?

201. What is Dataware house key?

202. How do we delete staging area in our project?

203. How to do aggregation with out using AGGREGAROR Transformation ?

204. 1)What are the various test procedures used to check whether the data is loaded in the back end, performance of the mapping, and quality of the data loaded in INFORMATICA.2) What are the common problems developers face while ETL development

205. how do we remove the staging area

206. What are the types of loading in Informatica?

207. In my source table 1000 rec's are there. I want to load 501 rec to 1000 rec into my Target table ?

208. how can we eliminate source bottleneck using query hint

209. when informatica 7.1.1 version was introduced into market

210. How to partition the Session?(Interview question of CTS)

211. How do you change change column to row in Informatica

212. How do we lookup data in the target and the source to compare them without using lookup transformation? basically i mean getting lookup functionality without using lookup transformation?thank you

213. We can insert or update the rows without using the update strategy. Then what is the necessity of the update strategy?

214. How a LOOKUP is passive?

215. Hello,I was asked this question in an interview,Where did you implement SCD2 and what was the transformations used.What was the complex transformations did you use.Answers please........

216. Hi ,About Informatica Power center 7:1) I want to Know which mapping properties can be overridden on a Session Task level.2)Know what types of permissions are needed to run and schedule Work flows.Someone can help me?Thank you.

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217. write a query to retrieve the latest records from the table sorted by version(scd).

218. what s an ODS? what s the purpose of ODS?s that a logical database that stores extracted data from source ?

219. Is it possible to execute work flows in different repositories at the same time using the same informatica server?

220. Explain about scheduling real time in informatica

221. What are the Differences between Informatica Power Center versions 6.2 and 7.1, also between Versions 6.2 and 5.1?

222. hii. this question was asked in accenture interviewIf ur having source table in which there are records of 10 different countries and ur havig 10 target tables so tell me how should we load the individual data of country in individual table.i know that we can do this using router transformation but i m not able to make it so plz can anyone help me in this.regardsTarang Jain

223. How Can we join one relational table and one flat file without having common key using joiner transoformation? Is it possible to join without common key to join using joiner transformation?

224. how can we remove/optmize source bottlenecks using "query hints"

225. what is the advantages of converting stored procedures into Informatica mappings?

226. hi, how we validate all the mappings in the repository at once

227. How to use incremental aggregation in real time? 228. How many staging areas are there in your project? Recently I have asked this question is there number of staging areas? Please briefly explain it , Thanks in advance.

229. What are Target Options on the Servers? Target Options for File Target type are FTP File, Loader and MQ.There are no target options for ERP target typeTarget Options for Relational are Insert, Update (as Update), Update (as Insert), Update

230. what is sql override where do we use and which transformations

231. what is constraint based error? how ll u clarify it?

232. How do you import 500file from tally software in informatica. ?

233. Which transformation has the most complexity Lookup or Joiner?

234. What's the difference between source and target object definitions in Informatica?

235. What are variable ports and list two situations when they can be used?

236. What are all the new features of informatica 8.1?

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237. How to FTP a file to a remote server?

238. how do u check the source for the latest records that are to be loaded into the target.i.e i have loaded some records yesterday, today again the file has been populated with some more records today, so how do i find the records populated today. 239. What is the purpose of using UNIX commands in informatica. Which UNIX commands are generally used wWhat is the purpose of using UNIX commands in informatica. Which UNIX commands are generally used with informatica.

240. what is the difff between static cache and dynamic cache in which scenario do we use them .give the241. Kindly suggest how to install and configure Informatica in Unix. I have installed informatica in Windows 2000 can I use the same CDs to install in unix ..

242. which one is better performance wise joiner or lookup

243. hi... this was asked in acccenture interview can anyone plz tell me the answerwhat is the difference between informatica 7.1 and 8.1

244. what is the logic will you implement to load the data in to one fact from 'n' number of dimension tables.

245. What is meant by source is changing incrementally? explain with example

246. how can we delete duplicate rows from flat files ?

247. How to load the time dimension using Informatica ?

248. What can we do in mapplets,that we cannot do in mappings

249 1. While executing an FTP command in a Shell script, we get following error : TM_6056 Error executing shell command [FILE_TRANSFER.sh]. Return code is [256].2. From experience we know that this is due to FTP failure. Resolution is to first resolve the FTP error & then re-start the workflow/server.3. I want to know what is the method of getting more details & resolution for such "Return Codes" (256 or any other) ?

250. Explain the pipeline partition with real time example?

251. where from we get the source data or how we access the source data

252. how many types of sessions are there in informatica.please explain them.

253. what is the diffrence between SCD and INCREMENTAL Aggregation?

254. What r the unsupported repository objects for a mapplet? COBOL source definition Joiner transformations Normalizer transformations Non reusable sequence generator transformations. Pre or post session stored procedures Target defintions Power mart 3.5 style

255. What r the basic needs to join two sources in a source qualifier? Two sources should have primary and Foreign key relation ships. Two sources should

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have matching data types.

256. what is the event-based scheduling?

257. You transfer 100000 rows to target but some records get discard. How wil you trace them? and where its get loaded?

258. when do u we use dynamic cache and when do we use static cache in an connected and unconnected lookup transformation

259. what is the look up transformation? Use lookup transformation in u’r mapping to lookup data in a relational table,view,synonym. Informatica server queries the look up table based on the lookup ports in the transformation.It compares the

260. You need to prepare common documentation of session+it's source and target.How do You make it

261. How to load time dimension?

262. how do you load the time dimension.

263. What is the process of loading the time dimension?

264. what is dynamic insert?

265. 1.can u look up a flat file ? how ?2.what is test load?

266. what is auxiliary mapping ?

267. interview questiontell me what would the size of ur warehouse project?

268. what is authenticator ?

269. what is Powermart and Power Center?

270. What is the optimum method to load five flat files with same structures into target? What is meant

271. how can we store previous session logs

272. How to load fact table ?

273. What is exact use of 'Online' and 'Offline' server connect Options while defining Work flow in Work flow monitor? . The system hangs when 'Online' server connect option. The Informatica is installed on a Personal laptop.

274. Differences between Informatica 6.2 and Informatica 7.0Yours sincerely,Rushi.

275 how to write a filter condition to get all the records of employees hired between any two given dates.

276. HOw do u setup a schedule for data loading from scratch?

277. I have an requirement where in the columns names in a table (Table A) should

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appear in rows of target table (Table B) i.e. converting columns to rows. Is it possible through Informatica? If so, how?

278. What is ODS ?what data loaded from it ? What is DW architecture?

279. what is the diff b/w source qualifier transformation and application source qualifier transformation?

280. how to create primary key only on odd numbers?

281. what is meant by lookup caches? The informatica server builds a cache in memory when it processes the first row af a data in a cached look up transformation.It allocates memory for the cache based on the amount u configure in the tr

282. how can we populate the data into a time dimension ?

283. Define maping and sessions? Maping: It is a set of source and target definitions linked by transformation objects that define the rules for transformation. Session : It is a set of instructions that describe how and when to move

284. Why and where we are using factless fact table?

285. tell me one complecated mapping

286. why exactly the dynamic lookup?plz can any bady can clarify it?

287. Is a fact table normalized or de-normalized?

288. how did you handle errors?(ETL-Row-Errors)

289. what is referential Intigrity error? how ll u rectify it?

290. Informatica Live Interview Questions

291. what are the UTP'S

292. hw to work with pmcmd on windows platform

293. how to get 25 of 100 fields table is there any transformation available in informatica i know routehow to get 25 of 100 fields table is there any transformation available in informatica i know router/filter or any other?

294. what is aggregate awareness?

295. E-R modelling is used for OLTP systemsDimesional modelling for data modelling of datwarehouse.why is this so.what is the difference between E-R modelling and dimesional modelling.thank in advance.

296. what is the difference between connected stored procedure and unconnected stored procedure?

297. Wat is QTP in Data Warehousing?

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298. What are the questions asked in PDM Round(Final Hr round)

299. what is a transforamation? It is a repostitory object that generates,modifies or passes data.

300. How do you create single lookup transformation using multiple tables?

301. How do we load from PL/SQL script into Informatica mapping?

302. what is grouped cross tab?

303. How to import oracle sequence into Informatica.

304. what is the procedure to write the query to list the highest salary of three employees?

305. what are the differences between informatica6.1 and informatica7.1

306. what is the diff b/w STOP & ABORT in INFORMATICA sess level ?

307what is E-R modelling and why is it used for OLTP designwhat is dimesional modelling and why is it used for datawarehouse desgn

308. what is DTM process?

309. HOw do u select duplicate rows using informatica?

310. What is target load order ?311. What TOAD and for what purpose it will be used?

312. How to extract 10 records out of 100 records in a flat file

313. What is user defined Transformation?

314. how to get two targets T1 containing distinct values and T2 containing duplicate values from one source S1.

315. When do u use a unconnected lookup and connected lookup....what is the difference between dynamic and static lookup...y and when do v use these types of lookups ( ie...dynamic and static )

316. What are the common errors that you face daily?

317 Target file has duplicate records, eventhough the source tables has single records. Selecting data from 5 different SQL tables using the user defined join.

318. What Bulk & Normal load? Where we use Bulk and where Normal?

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319. while Running a Session, what are the two files it will create?

320. Can we use lookup instead of join? Reason

321. What is JMS and what is the relation between powerconnect and JMS?

322. what is surrogate key ? how many surrogate key used in ur dimensions?

323. in which particular situation we use dynamic lookup?

324. Is it possible to run one loading session with one particular target and multiple types of data sources?

325. How to load data to target where the source and targets are XML'S?

326. Can we create duplicate rows in star schema?

327. what happens if the informatica server doesn't find the session parameter in the parameter file?

328. How to call stored Procedure from Workflow monitor in Informatica 7.1 version

329. what r the types of target loads

330. what is suggested method for validating fields/marking them with errors?

331. In a flat file sql override will work r not? what is the extension of flatfile.

332. is there any relationship between java & inforematica?

333. 1. what is DTM process?2. what r the output files that informatica creates during the session running?3. limitations of joiner transformations?under which conditions we can't use joiner transformation?

334. what r the advantages and disadvantagesof a star schema and snoflake schema.thanks in advance.

335. How many types of flatfiles available in Informatica?

336. Where persistent cache will be stored?

337. WHAT IS THE DIFFERENCE BETWEEN LOGICAL DESIGN AND PHYSICAL DESIGN INA DATAWAREHOUSE

338. what is the difference between constraind base load ordering and target load plan

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339. Architectural diff b/w informatica 7.1 and 5.1?

340. What r the different threads in DTM process?341. what is cost effective transformation b/w lookup and joiner

342. Why did you use stored procedure in your ETL Application?

343. What is the difference between PowerCenter 6 and powercenter 7?

344. Explain in detail about Key Range & Round Robin partition with an example.

345. what are the transformations that restrict the partitioning of sessions? *Advanced External procedure transformation and External procedure transformation: This Transformation contains a check box on the properties tab to allow partitioning.*Aggregator Transformation: If y Asked by: satyaneerumallaLatest Answer: Advanced External procedure transformation and External procedure transformation: This Transformatio...

346. give me an scenario where flat files are used?

347. what is the use of Factless Facttable?

348. IS Router Transformation Active or Passive?Desc: RouT pass the rows by checking the condetion but IS Router Transformation Active or Passive?Desc: RouT pass the rows by checking the condetion but it never Rejects( Rejected Rows in Default target). so how ll u say it is active............

349. what r the types of data flows in workflow manager

350. In workflow can we send multiple email

351. what is lookup transformation and update strategy transformation and explain with an example.Thanks in Advance

352. Is it possible to refresh the Materialized view?

353. what is difference between COM & DCOM?

354. Where we use Star Schema & where Snowflake?

355. At what frequent u load the data?

356. What is Shortcut? What is use of it?

357. COMMITS: What is the use of Source-based commits ? PLease tell with an example ?

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358. What is SQL override? In which transformation we use override?

359. Can you update the Target table?

360. How to Generate the Metadata Reports in Informatica?361. While importing the relational source definition from database, what are the meta data of source U import? Source name Database location Column names Datatypes Key constraints

362. What is the use of incremental aggregation? Explain me in brief with an example.

363. what is difference between dimention table and fact table and what are different dimention tables and fact tables

364. how to create a custom transformation, can u give a realtime example where exactly u have used it. just give some explanation why u used the custom transformation.thx in advance

365. How do we do complex mapping by using flatfiles / relational database?

366. if source qualifier having employee details.the empid is in 5th placle and deptno is in 7th column then. u selected sort by 2. but how the informatica server will come know that those r the fields to sort.

367. What is CDC?

368. If u had to split the source level key going into two seperate tables. One as surrogate and other as primary. Since informatica does not gurantee keys are loaded properly(order!) into those tables. What are the different ways you could handle this type of situation?

369. What is the differance between Local and Global repositary?

370. what is bottleneck in informatica?

371. I am working on Infromatica. I want to do Certification in Infromatica designer. Can anybody please suggest me on how to start?

372. How can you say that union Transormation is Active transformation.

373. what is the basic language of informatica?

374. what is Partitioning ? where we can use Partition? wht is advantages?Is it nessisary?

375. how do we load data by using period dimension?

376. How can you improve the performance of Aggregate transformation?

377. why did u use update stategy in your application?

378. In update strategy target table or flat file which gives more performance ? why?

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379. 1) How to load the data (like refresh load, quarterly load, hourly load etc)2) what is lookup ? (Lookup is a join is it wright or wrong)ub 380. What is the difference between materialized view and a data mart? Are they same?

381. What about rapidly changing dimensions?Can u analyze with an example?

382. Wht is incremental loading?Wht is versioning in 7.1?

383. what are the type costing functions in informatica

384. what is the repository agent?

385. what r the mapping specifications? how versionzing of repository objects?

386. Can any one please tell me the architecture of Informatica and please tell me the flow of data in Iinformatica?

387. what is the exact meaning of domain?

388. can u explain one critical mapping?2.performance issue which one is better? whether connected lookup tranformation or unconnected one?

389. can we eliminate duplicate rows by using filter and router transformation ?if so explain me in detail .

390. what are the difference between view and materialized view?

391. Differences between connected and unconnected lookup? Connected lookupUnconnected lookup Receives input values diectly from the pipe line.Receives input values from the result of a lkp expression in a another transformation.U can use a dynamic or s

392. What is Transaction?

393. What are Data driven Sessions? The informatica server follows instructions coded into update strategy transformations with in the session mapping to determine how to flag records for insert,update,delete or reject. If you do not ch

394. what is the architecture of any Data warehousing project? what is the flow?

395. How can I get distinct values while mapping in Informatica in insertion?

396. whats the diff between Informatica powercenter server, repositoryserver and repository? Powercenter server contains the sheduled runs at which time data should load from source to target Repository contains all the definitions of the mappings done in designer.

397. my source is having 1000 rows. i have brought 300 records into my ODS. so next time i want to load the remaining records. so i need to load from 301 th record. when ever i start the work flow again it will load from the begining. how do we solve

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this problem. thanks in advance kiran

398. what is surrogatekey ? In ur project in which situation u has used ? explain with example ?

399. can we modify the data in flat file?

401. What is Datadriven

401. What is Datadriven? The informatica server follows instructions coded into update strategy transformations with in the session maping determine how to flag records for insert, update, delete or reject. If u do not choose

402. What is Data cleansing..? The process of finding and removing or correcting data that is incorrect, out-of-date, redundant, incomplete, or formatted incorrectly.

403. What is a view? How it is related to data independence?And what are the different types of views,and what is Materialize view

404. how u will create header and footer in target using informatica?

405. What is the difference between PowerCenter 7 and PowerCenter 8?

406. How to move the mapping from one database to another?

407. What is change data capture?

408. how do we do unit testing in informatica?how do we load data in informatica ?

409. How to use the unconnected lookup i.e., from where the input has to be taken and the output is linked?What condition is to be given?

410. How to join two tables without using the Joiner Transformation.411. Can Informatica be used as a Cleansing Tool? If Yes, give example of transformations that can impleCan Informatica be used as a Cleansing Tool? If Yes, give example of transformations that can implement a data cleansing routine.

412. How do you decide whether you need ti do aggregations at database level or at Informatica level?

413. How do we estimate the depth of the session scheduling queue? Where do we set the number of maximum concurrent sessions that Informatica can run at a given time?

414. which is better among connected lookup and unconnected lookup transformations in informatica or any other ETL tool?

415. How to lookup the data on multiple tabels.

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416. What is the procedure to load the fact table.Give in detail?

417. In a sequential Batch how can we stop single session?

418. How do you handle decimal places while importing a flatfile into informatica?

419. With out using Updatestretagy and sessons options, how we can do the update our target table?

420. hello friends.Somebody ca explain me the 3 points:I want to Know :1) the differences between using421. where do we use MQ series source qualifier, application multi group source qualifier. just give an where do we use MQ series source qualifier, application multi group source qualifier. just give an example for a better understandingthx in advance

422. What is meant by Junk Attribute in Informatica?

423. 1)What are the various test procedures used to check whether the data is loaded in the backend, performance of the mapping, and quality of the data loaded in INFORMATICA.2) What are the common problems developers face while ETL development

424. If you want to create indexes after the load process which transformation you choose?a) Filter Tranformationb) Aggregator Tranformationc) Stored procedure Tranformationd) Expression Tranformation

425. Where is the cache stored in informatica?

426. What will happen if you are using Update Strategy Transformation and your session is configured for "insert"?What are the types of External Loader available with Informatica?If you have rank index for top 10. However if you pass only 5 records, what will be the output of such a Rank Transformation?

427. how do u check the source for the latest records that are to be loaded into the target.i.e i have loaded some records yesterday, today again the file has been populated with some more records today, so how do i find the records populated today.thanks in advance

428. how can we join the tables if the tables have no primary and forien key relation and no matchig port to join?

429. if the workflow has 5 session and running sequentially and 3rd session hasbeen failed how can we run again from only 3rd to 5th session?

430. how can we use pmcmd command in a workflow or to run a session431. Can u tell me how to go for SCD's and its types.Where do we use them mostly

432. how is the union transformation active transformation?

433. why sorter transformation is an active transformation?

434. hi Gurus, I was working in SQL server, now i got an golden opertunity to work in INFORMATICA. I have lots of (silly) Questions to build my Career, so pls guide me

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properly. I will ask lots of questions....What is the process flow of informatica, Thanks in advance

435. How to define Informatica server?

436. Can we use aggregator/active transformation after update strategy transformation

437. Two relational tables are connected to SQ Trans,what are the possible errors it will be thrown?

438. what is worklet and what use of worklet and in which situation we can use it

439. can anyone explain about incremental aggregation with an example?

440. Partitioning, Bitmap Indexing (when to use), how will the bitmap indexing will effect the performan441. 1]In certain mapping there are four targets tg1,tg2,tg3 and tg4.tg1 has a primary key,tg2 foreign k1]In certain mapping there are four targets tg1,tg2,tg3 and tg4.tg1 has a primary key,tg2 foreign key referencing the tg1's primary key,tg3 has primary key that tg2 and tg4 refers as foreign key,tg2 has foreign key referencing primary key of tg4 ,the order in which the informatica will load the target?2]How can I detect aggregate tranformation causing low performance?

442. what is tracing level?

443. there are 3 depts in dept table and one with 100 people and 2nd with 5 and 3rd with some 30 and so. i want to diplay those deptno where more than 10 people exists

444. what is rank transformation?where can we use this transformation?

445. How can we join 3 database like Flat File, Oracle, Db2 in Informatrica

446. Hi,In Power Center 7.1.2 how can we take a Backup of a Versioned Repository such that I get a Non-Versioned Repository when i restore it.I need a way to get a non-versioned repository from a versioned one.Creating a new Repository(Non-Versioned) and then copying all the folders is an option.But is there any other better way...?

447. What is difference between partioning of relatonal target and partitioning of file targets? If u parttion a session with a relational target informatica server creates multiple connections to the target database to write target data concurently.If u partition a session with a file target the

448. hwo can we eliminate duplicate rows from flat file?

449. How do we analyse the data at database level?

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450. what is hash table informatica?

451. How to export mappings to the production environment?

452. can any one tell me how to run scd1 bec it create two target tables in mapping window and there are only one table in warehouse designer(means target).. so if we create one new table in target it gives error..thanks in advance

453. In my source table 1000 rec's r there.I want to load 501 rec to 1000 rec into my Target table ?how can u do this ?

454. What are the properties should be notified when we connect the flat file source definition torelational database target definition?

455. I have a situation here to load the Table into informatica.I have 5 temporary tables as sources. They look like:Table1: (K - Key, N-Null, X,Y,Z - values)K1 X N N N NK2 X N N N N--------------------------Table2: K1 N X N N NK2 N X N N N--------------------------the other 3 tables are in the same way. But there can be a situation like any of the table can contain duplicates like:K1 X N N N NK1 Y N N N N--------

456. what are the different types of transformation available in informatica. and what are the mostly uswhat are the different types of transformation available in informatica. and what are the mostly used ones among them

457. Can u generate reports in Informatcia?

458. what does the expression n filter transformations do in Informatica Slowly growing target wizard?

459. How to view and Generate Metadata Reports(for a particular session would like to generate a report which shows source table , source column and related target table , target column) in informatica?

460. What is the diff b/w Stored Proc (DB level) & Stored proc trans (INFORMATICA level) ?again why should we use SP trans ?

461. Which tool U use to create and manage sessions and batches and to monitor and stop the informatica server? Informatica server manager.

462. What is meant by EDW?

463. what are the measure objects

464. what are the real time problems generally come up while doing/running mapping/any transformation?can any body explain with example.

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465. how to load the data from people soft hrm to people soft erm using informatica?

466. can batches be copied/stopped from server manager? 467. Can Informatica load heterogeneous targets from heterogeneous sources?

468. What is exact use of 'Online' and 'Offline' server connect Options while defining Work flow in Work flow monitor? . The system hangs when 'Online' server connect option. The Informatica is installed on a Personal laptop.

469. while running multiple session in parallel which loads data in the same table, throughput of each session becomes very less and almost same for each session. How can we improve the performance (throughput) in such cases?

470. what are the enhancements made to Informatica 7.1.1 version when compared to 6.2.2 version? 471. explain use of update strategy transformation

472. what is polling?

473. what is the difference between stop and abort

474. How can you delete duplicate rows with out using Dynamic Lookup? Tell me any other ways using lookup delete the duplicate rows?

475. Could anyone please tell me what are the steps required for type2 dimension/version data mapping. how can we implement it

476. what is the mapping for unit testing in Informatica, are there any other testings in Informatica, and how we will do them as a etl developer. how do the testing people will do testing are there any specific tools for testing

477. Explain the informatica Architecture in detail

478. what happens if you try to create a shortcut to a non-shared folder?

479. In a joiner trasformation, you should specify the source with fewer rows as the master source. Why?

480. What are the various test procedures used to check whether the data is loaded in the backend, performance of the mapping, and quality of the data loaded in INFORMATICA.481. what are mapping parameters and varibles in which situation we can use it

482. Talk about the Kimball vs. Inmon approaches.Talk about the concepts of ODS and information factory.Talk about challenges of real-time load processing vs. batch.

483. Waht are main advantages and purpose of using Normalizer Transformation in Informatica?

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484. Can any one explain real time complain mappings or complex transformations in Informatica.Specially in Sales Domain.

485. Difference between Rank and Dense Rank?

486. hi everyone,can anyone explain error handling in informatica with examples so that it will be easy to explain the same in the interview.

487. how do you create a mapping using multiple lookup transformation?

488. what is mystery dimention?

489. What is the default source option for update stratgey transformation? Data driven.

490. At the max how many tranformations can be us in a mapping?

491. What is the difference between Narmal load and Bulk load?

492. Can i use a session Bulk loading option that time can i make a recovery to the session?

493. How do you configure mapping in informatica

494. I have an requirement where in the columns names in a table (Table A) should appear in rows of target table (Table B) i.e. converting columns to rows. Is it possible through Informatica? If so, how?

495. what is meant by complex mapping,

496. What is Micro Strategy? Why is it used for? Can any one explain in detail about it?

497. what is a junk dimension

498. What is data merging, data cleansing, sampling?

499. what is difference b/w Informatica 7.1 and Abinitio

500. Can i start and stop single session in concurent bstch?

501. Differences between Normalizer and Normalizer transformation.

502. Difference between static cache and dynamic cache Static cache Dynamic cache U can not insert or update the cacheU can insert rows into the cache as u pass to the target The informatic server returns a value from the lookup table or cache when the co

503. How to perform a "Loop Scope / Loop condition" in an Informaticaprogram ? Give me few examples .

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504. can we run a group of sessions without using workflow manager

505. what are cost based and rule based approaches and the difference

506. What is the target load order?

507. what are partition points?

508. what is difference between lookup cashe and unchashed lookup?Can i run the mapping with out starting the informatica server?

509. hi all,can any one comment onsignificance of oracle 9i in informatica when compared to oracle 8 or 8i.i mean how is oracle 9i advantageous when compared to oracle 8 or 8i when used in informatica thanksKumar

510. What is IQD file?511. hy,I want to prepare a questionnaire. The details about it are as follows: -1. Identify a large comhy,I want to prepare a questionnaire. The details about it are as follows: -1. Identify a large company/organization that is a prime candidate for DWH project. (For example Telecommunication, an insurance company, banks, may be the prime candidate for this)2. Give at least four reasons for the selecting the organization.3. Prepare a questionnaire consisting of at least 15 non-trivial questions to collect requirements/information about the organization. This information is required to build data

512. what is the best way to show metadata(number of rows at source, target and each transformation level, error related data) in a report format

513. how to use mapping parameters and what is their use

514. How do I import VSAM files from source to target. Do I need a special plugin

515. What is batch and describe about types of batches? Grouping of session is known as batch.Batches r two types Sequential: Runs sessions one after the other Concurrent: Runs session at same time. If u have sessions with source-target dependencies u have

516. How the informatica server increases the session performance through partitioning the source? For a relational sources informatica server creates multiple connections for each parttion of a single source and extracts seperate range of data for each connection.Informatica server reads multiple

517. What is the procedure or steps implementing versioning if you are already in version7.X. Any gotcha\'s or precautions..

518. Compare Data Warehousing Top-Down approach with Bottom-up approach Asked by: sarath

519. If you have four lookup tables in the workflow. How do you troubleshoot to improve performance?

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520. If you are workflow is running slow in informatica. Where do you start trouble shooting and what are the steps you follow

521. How to retrive the records from a rejected file. explane with syntax or example

522. Can u copy the session to a different folder or repository?

523. What r the options in the target session of update strategy transsformatioin? Insert Delete Update Update as update Update as insert Update esle insert Truncate table

524. How many ways you can update a relational source defintion and what r they? Two ways 1. Edit the definition 2. Reimport the defintion

525. Discuss which is better among incremental load, Normal Load and Bulk load

526. In a filter expression we want to compare one date field with a db2 system field CURRENT DATE.Our Syntax: datefield = CURRENT DATE (we didn't define it by ports, its a system field ), but this is not valid (PMParser: Missing Operator)..Can someone help us. Thanks

527. how to create the staging area in your database client having database throught that data base u get all sources

528. How can u work with remote database in informatica?did u work directly by using remote connections? To work with remote datasource u need to connect it with remote connections.But it is not preferable to work with that remote source directly by using remote connections .Instead u bring that source i

529. What is the difference between connected and unconnected stored procedures.

530. What r the tasks that source qualifier performs?531. What r the types of groups in Router transformation? Input group Output group The designer copies property information from the input ports of the input group to create a set of output ports for each output group. Two types of output groups User defined 532. Which transformation should u need while using the cobol sources as source defintions? Normalizer transformaiton which is used to normalize the data.Since cobol sources r oftenly consists of Denormailzed data.

533. what r the settiings that u use to cofigure the joiner transformation? Master and detail source Type of join Condition of the join

534. What are various types of Aggregation? Various types of aggregation are SUM, AVG, COUNT, MAX, MIN, FIRST, LAST, MEDIAN, PERCENTILE, STDDEV, and VARIANCE.

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535. Briefly explian the Versioning Concept in Power Center 7.1.

536. What r the methods for creating reusable transforamtions? Two methods 1.Design it in the transformation developer. 2.Promote a standard transformation from the mapping designer.After U add a transformation to the mapping , U can promote it to the status of r

537. What r the join types in joiner transformation? Normal (Default) Master outer Detail outer Full outer

538. What is power center repository? The PowerCenter repository allows you to share metadata across repositories to create a data mart domain. In a data mart domain, you can create a single global repository to store metadata used across

539. What r the types of metadata that stores in repository? Following r the types of metadata that stores in the repository Database connections Global objects Mappings Mapplets Multidimensional metadata Reusable transformations Sessions and batches Short cuts

540. What is parameter file?541. Which transformation should we use to normalize the COBOL and relational sources? Normalizer Transformation. When U drag the COBOL source in to the mapping Designer workspace,the normalizer transformation automatically appears,creating input and output ports for every column in the

542. What is the Rankindex in Ranktransformation? The Designer automatically creates a RANKINDEX port for each Rank transformation. The Informatica Server uses the Rank Index port to store the ranking position for each record in a group. For example,

543. What r the types of maping in Getting Started Wizard? Simple Pass through maping : Loads a static fact or dimension table by inserting all rows. Use this mapping when you want to drop all existing data from your table before loading new data. Slowly Grow

544. How do we estimate the number of partitons that a mapping really requires? Is it dependent on the mHow do we estimate the number of partitons that a mapping really requires? Is it dependent on the machine configuration?

545. Define informatica repository? The Informatica repository is a relational database that stores information, or metadata, used by the Informatica Server and Client tools. Metadata can include information such as mappings describing

546. which objects are required by the debugger to create a valid debug session?

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547. What r the different types of Type2 dimension maping? Type2 Dimension/Version Data Maping: In this maping the updated dimension in the source will gets inserted in target along with a new version number.And newly added dimension in source will inserted i

548. How does the server recognise the source and target databases?

549. What is the limit to the number of sources and targets you can have in a mapping

550. Suppose session is configured with commit interval of 10,000 rows and source has 50,000 rows.

552. After draging the ports of three sources(sql server,oracle,informix) to a single source qualifier, can u map these three ports directly to target? NO.Unless and until u join those three ports in source qualifier u cannot map them directly.

553. How the informatica server sorts the string values in Ranktransformation

554. What is the difference between summary filter and detail filter

555. How do you transfert the data from data warehouse to flatfile?

556. What r the tasks that Loadmanger process will do?

557. what is a time dimension? give an example.

558. What r the types of data that passes between informatica server and stored procedure?

559. Why we use partitioning the session in informatica?

560. What are 2 modes of data movement in Informatica Server?

561. Diff between informatica repositry server & informatica server

562. how can we partition a session in Informatica?

563. What is Load Manager?

564. What is Code Page Compatibility?

565. What is Code Page used for?

566. What r the rank caches?

567. What is the status code?

568. Describe two levels in which update strategy transformation sets?

569. What r the new features of the server manager in the informatica 5.0?

570. What is metadata reporter?

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571. To achieve the session partition what r the necessary tasks u have to do? Configure the session to partition source data. Install the informatica server on a machine with multiple CPU’s.

572. Why u use repository connectivity? When u edit,schedule the sesion each time,informatica server directly communicates the repository to check whether or not the session and users r valid.All the metadata of sessions and mappings will b

573. What is DTM process?

574. What r the data movement modes in informatcia?

576. In which circumstances that informatica server creates Reject files?

577. What is polling?

578. How many number of sessions that u can create in a batch?

579. When the informatica server marks that a batch is failed? If one of session is configured to "run if previous completes" and that previous session fails.

580. What is a command that used to run a batch?

581. In a sequential batch can u run the session if previous session fails?

582. Can u start a session inside a batch idividually? We can start our required session only in case of sequential batch.in case of concurrent batch we cant do like this.

583. What r the session parameters?

584. How can u access the remote source into U’r session?

585. what r the transformations that restricts the partitioning of sessions?

586. What r the new features in Informatica 5.0? U can Debug U’r maping in maping designer U can view the work space over the entire screen The designer displays a new icon for a invalid mapings in the navigator window U can use a dynamic lookup cac

587. what is incremantal aggregation?

588. What r the scheduling options to run a sesion?

589. What is difference between stored procedure transformation and external procedure transformation?

590. Explain about Recovering sessions?

591. Explain about perform recovery?

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592. How to recover the standalone session?

593. How can u recover the session in sequential batches? If you configure a session in a sequential batch to stop on failure, you can run recovery starting with the failed session. The Informatica Server completes the session and then runs the rest of the b

594. How to recover sessions in concurrent batches? If multiple sessions in a concurrent batch fail, you might want to truncate all targets and run the batch again. However, if a session in a concurrent batch fails and the rest of the sessions complete

595. How can u complete unrcoverable sessions? Under certain circumstances, when a session does not complete, you need to truncate the target tables and run the session from the beginning. Run the session from the beginning when the Informatica Se

596. What r the circumstances that infromatica server results an unreciverable session?