Sequence of Events for an Index Analysis - Teradata Vantage - Analytics Database

The following process indicates the general phases of an index analysis:

1. The analysis begins when an INITIATE INDEX ANALYSIS request is submitted.
2. The database query analysis tool analyzes the submitted workload for indexing opportunities.
3. The index recommendations are written to the IndexRecommendations, IndexColumns, and JoinIndexColumns tables of the specified QCD database.
4. The recommendations are retrieved for evaluation using a set of SQL SELECT requests defined within a number of macros provided within each QCD.

   For example, the following SELECT request is the core of the Recommendations macro.

        SELECT TableName, DatabaseName, IndexTypeText, SpaceEstimate,             IndexDDL
        FROM IndexRecommendations
        WHERE WorkloadID = :WorkloadID;

   You can find a list of the index recommendation query macros in Teradata Vantage™ - SQL Request and Transaction Processing, B035-1142.