Basic Searching

Database Structure

Keywords and Profile Creation

Creating and Combining Sets

The DatabaseRecords Indexes

FREE-TEXT Index

Title Index

Author Index

Source Index

Language Index

Descriptors Index

……..

The FREE-TEXT IndexCATTINI-C 12, 35,57CATTINI-PA 8, 11CATTLE 1,2,5,7,8,11,14,17,21CATTLE-BREEDING 2,5,8,17CATTLE-BREEDS 2,5,11,20CATTLE-DISEASES 1,5,14,21CATTLE-FARMERS 7,12CATTLE-FARMING 7,11CATTLE-FARMS 7,14,20CATTLE-FEEDING 11,14,21CORN 6,9,13CORN-FLOUR 6,9DESAI-VG 22DESALINATION 4,16FLOUR 6,9

Term Record Number

Keywords and Selection

Understand the question

Select all the important concepts

Add synonyms, singulars and plurals

Use the indexes and Thesaurus

Building the ProfileSearch Example:“I need 50 recent records on the irrigation of

rice in South East Asia”

Keywords:IrrigationRiceSouth East Asia

A Simple Search

#3 south east Asia 20072

#2 rice 27332

#1 irrigation 20972

Combining SetsBoolean Operators:

AND

OR

NOT

The Finished SearchThe Combine Operation:

#1 AND #2 AND #3

The Final Search:

#4 #1 and #2 and #3 197#3 south east asia 20072#2 rice 27332#1 irrigation 20972

After the Search

Display the records

Check the relevance

Look for additional search terms

Modify the search if required