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Component documentation SQL Optimizer Locate the document in its SAP Library structure

Purpose

SQL Optimizer analyzes SQL queries sent to the database and selects the best search strategy for accessing the database tables.

Implementation Considerations

SQL Optimizer is part of the MaxDB database system kernal. You can download the MaxDB software from the MaxDB website (see Download and Installation Profile).

For more information on the database system, see Concepts of the Database System and Glossary, and for more information on SQL syntax see the Reference Manual.

Features

SQL Optimizer is called by the database system implicitly (see How Optimizer Works).

You can use the EXPLAIN SQL statement to find out which search strategy was selected by SQL Optimizer for an SQL statement (see Troubleshooting).

 

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