1. DB Index Expert Copyright © 1998-2000 SoftTree Technologies, Inc.

2. DB Index Expert Mission t Proper database indexing is a crucial factor for the database performance. Most Oracle databases have hundreds and even thousands indexes. This large numbers of indexes and their complexity make index tuning and monitoring a difficult task. t As time goes, even originally efficient indexes may become inefficient due to various index distortions caused by data changes in the indexed tables. t Oracle DBAs and developers need smart tools that can analyze all or selected group of indexes at once then automatically suggest what changes can be made to improve the database indexing. DB Index Expert is specifically designed for such tasks. It is a tremendous time- saver for any Oracle DBA and developer who is serious about proper database indexing. t DB Index Expert can recommend adding new indexes, modifying existing indexes and dropping unnecessary indexes. With a few mouse clicks it will gather and analyze all possible index statistics then present them in a easy-to-read reports and graphs providing quick access to index tuning.

3. To start DB Index, double click the DB Index icon

4. Choose analysis options

5. Choose analysis method and report options Notes: If you are going to analyze a bunch of indexes, check “Select best method based on object size”. DB Index Expert will pick reasonable sample set of data for every analyzed table and index. This sample will be sufficient to produce accurate reports with a quick response time and not causing heavy load for your database.

6. Specify connection parameters

7. Select one or more schemas

8. Select one or more indexes

9. Index analysis is in progress...

10. Review DB Index analysis reports and index tuning recommendations

11. t DB Index Expert can recommend adding new indexes, modifying parameters of existing indexes and dropping unnecessary indexes. t Recommendations for new indexes are based on analysis of high impact SQL statements loaded into the Library Cache as well as analysis of database referential integrity constraints that can benefit from adding new indexes t Recommendations for existing indexes are based on analysis of index cardinality, balancing, storage parameters, fragmentation, table data statistics, and many other index efficiency factors... t Recommendations for unnecessary indexes are based on analysis of table data, index and table design, existence of other indexes The DB Index Expert provides sophisticated index analysis results and tuning recommendations

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