dbms_stats « System Packages « Oracle PL / SQL






  1. Oracle PL / SQL
  2. System Packages
  3. dbms_stats
1.dbms_stats.drop_stat_table, dbms_stats.create_stat_table,dbms_stats.delete_system_stats
2.dbms_stats.gather_schema_stats
3.dbms_stats.gather_table_stats
4.DBMS_STATS.GET_SYSTEM_STATS
5.dbms_stats.import_system_stats
6.dbms_stats.objectTab
7.dbms_stats.set_table_stats( user, 'EMP', numrows => 100000 )
8.dbms_stats.set_table_stats( user, 'myTable1', numrows => 10000000, numblks => 1000000 )
9.Delete all table and index statistics in your schema:




10.multiblock readtime in ms
11.Run DBMS_STATS.GATHER_SCHEMA_STATS to collect stats for all of your tables and indexes.
12.Extract system stats from your user table or data dictionary (sys.aux_Stats$).