DBMS_UTILITY.ANALYZE_SCHEMA is used to gather statistics for all the tables, clusters and indexes of a schema.
Examples:
exec DBMS_UTILITY.ANALYZE_SCHEMA('SCOTT','COMPUTE');
exec DBMS_UTILITY.ANALYZE_SCHEMA('SCOTT','ESTIMATE', estimate_rows => 1000);
exec DBMS_UTILITY.ANALYZE_SCHEMA('SCOTT','ESTIMATE', estimate_percent => 25);
exec DBMS_UTILITY.ANALYZE_SCHEMA('SCOTT','DELETE');
Note: It's also possible to analyze the whole database with the DBMS_UTILITY.ANALYZE_DATABASE('COMPUTE'); command.
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- Query Optimization Tips for Oracle
- DBMS_PROFILER: Overview and How to Install
- Oracle : TKPROF simple steps
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Examples:
exec DBMS_UTILITY.ANALYZE_SCHEMA('SCOTT','COMPUTE');
exec DBMS_UTILITY.ANALYZE_SCHEMA('SCOTT','ESTIMATE', estimate_rows => 1000);
exec DBMS_UTILITY.ANALYZE_SCHEMA('SCOTT','ESTIMATE', estimate_percent => 25);
exec DBMS_UTILITY.ANALYZE_SCHEMA('SCOTT','DELETE');
Note: It's also possible to analyze the whole database with the DBMS_UTILITY.ANALYZE_DATABASE('COMPUTE'); command.
Related Posts:
- DBMS_STATS Gather Statistics of Schema, Tables, Indexes
- Oracle: Analyze Table or Index
- Query Optimization Tips for Oracle
- DBMS_PROFILER: Overview and How to Install
- Oracle : TKPROF simple steps
- SP2-0618: Cannot find the Session Identifier. Check PLUSTRACE role is enabled
- Doubt: Truncate Command and Table Statistics
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