Attribute view –At a Glance _ SAPERRORS

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Attribute view At a GlancePosted on June 12, 2012

This document tells you about SAP HANA data modelling and using this document you can

very much able to create your own attribute view in HANA system.

The below diagram shows the major steps involved in creating Attribute View.

The pre-requisites to create Attribute View are..

i) Tables should exist with data

ii) Package should exist.

so i assume that readers know :


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How to create a table in HANA

How to insert values in the table

How to create a Package

Steps involved in creating Attribute View using Single or Multiple tables :

Step1: Right click on your Package >New >Attribute View.

Step2: Give the technical name, description and type of attribute view.


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We can create two types Attribute Views.

i) Standard

ii) Time

If we are creating Time type Attribute View then we have to mention which type of time

data system has to use (Gregorian/Fiscal). We are not going to discuss this here.


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We have below options also while creating Attribute Views

i) Copy from: If you want to use already existing attribute view s template then go for this

(you can modification if required for current one).

ii) Derived: This is kind of reference type. You cannot do modifications to the current one

(Do the changes for main one).

Click on next to proceed further.

Step3: In the next screen, we have to select the tables on which we are going to build

Attribute View.

For this example I am using CUST_INFO and SALES_EMPLY tables. Here we can select

single or multiple tables (using control key), however I am going to select one table here

and I will show how to add tables later.

Drill down appropriate schema, select the tables and click on add to move to right side.


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Click on Finish to go to the Modeler Screen.

Step4:

Define Key Attributes: These are used as the keys when we join this Attribute with

another Attribute or Analytic View. Right click any attribute > Add as Key Attribute.

Define Attribute: We have to explicitly define the attributes which are all we need in

output. Right click on Attribute > Add as Attribute.


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In this example I have taken Customer_Number as key attribute, Customer_name and

Customer_Location as attributes.

We can see the output structure in Right side.

Step4: Now I want to populate the sales employee information for each customer in same

Attribute View.

I have created table Sales_Emply but how to add this table to this view.

Using the Plus in the same screen (right top), we can add the table to this existing

attribute view.


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Now click on Add table and search for the table with name and click on Ok

Note: Disadvantage with this is we cannot add more than one table at a time.

Step6: Define the joining condition between these two tables. Here I have joined Customer

Number from both the tables.


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The different types of Joins available in SAP HANA are:

i) Referential

ii) Inner

iii) Left Outer

iv) Right Outerv) Text Join

Step7: Creating Hierarchies is optional while creating Attribute Views. In SAP HANA we can

create two types of Hierarchies.


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1) Level Based This is one to one mapping (one attribute one hierarchy)

2) Parent-Child This is one to many (one attribute can have multiple hierarchy levels)

Step8: We have to save the attribute view and then activate it. Only activated views will

be available for reporting clients and data preview as well.we can identify the difference

between saved or saved and activated with rhombus symbol. Only saved views will have

rhombus symbol.

After Save and Before Activation:


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After Activation:

Once the view is activated system will create column view for each view and this will be

stored in _SYS_BIC_ schema. The naming convention of the column view will be as

follows.

/

Step9: The one of the beauty of SAP HANA is Data Preview feature. Once the view

creation was done, we can directly analyze the data in view in different perspectives.

The 3 options available in Data Preview are

i) Raw Data: we can see the data as it is present in the table (RAW).


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ii) Distinct Values: In the Distinct value tab we can see each of the distinct values for all

different objects that which we had select in the column tab. even the graphical view is

available here with each values of the selected object.

iii) Analysis: the best ever feasibility ever provided by any BW tool for a developer. We can

Use the HANA studio itself to see the analytics for our attribute view. We can give different

Table object in labels axis, value axis tabs in Analysis, and can use filter as well frequently

to analyze more granularly.

For example of Sales and region perspective, I have drag and drop SUB_REGION_NAME and

ITEM_NAME to Labels axis and SALES_AMOUNT to Value axis.

Then I have dragged REGION_NAME as Filter with America and APJ as my filter.

Below is the analytics for the above select ion:


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