收集统计信息 不会更新DDL时间

收集统计信息不会更新DDL时间



SQL>  select owner,object_name,created,last_ddl_time  from dba_objects a where a.object_name='TEST200' and owner='TLCBUSER';

OWNER                   OBJECT_NAME              CREATED          LAST_DDL_TIME
------------------------------ ------------------------------ ------------------- -------------------
TLCBUSER               TEST200                  2018-05-22 17:10:58 2018-05-22 17:11:48

SQL> BEGIN
  DBMS_STATS.GATHER_TABLE_STATS(ownname          => 'TLCBUSER',
                                tabname          => 'TEST200',
                                estimate_percent => 100,
                                method_opt       => 'for all columns size repeat',
                                no_invalidate    => FALSE,
                                degree           => 8,
                                cascade          => TRUE);
END;  2    3    4    5    6    7    8    9  
 10  /

PL/SQL procedure successfully completed.

SQL>  select owner,object_name,created,last_ddl_time  from dba_objects a where a.object_name='TEST200' and owner='TLCBUSER';

OWNER                   OBJECT_NAME              CREATED          LAST_DDL_TIME
------------------------------ ------------------------------ ------------------- -------------------
TLCBUSER               TEST200                  2018-05-22 17:10:58 2018-05-22 17:11:48