News
Perth, Australia
+ (61) 417713124
prosolutions@gavinsoorma.com

Export and Import schema statistics

  • Posted by Arjun Raja
  • On June 25, 2009
  • 0 Comments

Easy way to export and import schema statistics – in case the optimizer is behaving strangely and you want to re-import old statistics when the optimizer behaved properly.

SCHEMA NAME – TEST

Create the table to store the statistics-
EXEC DBMS_STATS.CREATE_STAT_TABLE(‘TEST’, ‘STATS_TABLE’);

Export schema stats – will be stored in the ‘STATS_TABLE’
EXEC DBMS_STATS.export_schema_stats(‘TEST’,’STATS_TABLE’,NULL,’TEST’);

If required import these statistics back to TEST schema.
EXEC DBMS_STATS.import_schema_stats(‘TEST’,’STATS_TABLE’,NULL,’TEST’);

Finally drop the table created to backup the schema stats
EXEC DBMS_STATS.drop_stat_table(‘TEST’,’STATS_TABLE’);

 1

0 Comments

Leave Reply

Your email address will not be published. Required fields are marked *