What Is Oracle Server Autotrace

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What Is Oracle Server Autotrace? - Oracle DBA FAQ - Introduction to Command-Line SQL*Plus Client Tool

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A

Autotrace is Oracle server feature that generates two statement execution reports very useful for performance tuning:

Statement execution path - Shows you the execution loop logic of a DML statement.
Statement execution statistics - Shows you various execution statistics of a DML statement.

To turn on the autotrace feature, the Oracle server DBA need to:

Create a special table called PLAN_TABLE.
Create a special security role called PLUSTRACE.
Grant PLUSTRACE role your user account.

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