ORA-20005 统计信息被锁定

denglj

在手工更新统计信息时，报ORA-20005异常

SQL>exec dbms_stats.gather_table_stats('SYS','TEST');

BEGINdbms_stats.gather_table_stats('SYS','TEST'); END;

*

ERRORat line 1:

ORA-20005:object statistics are locked (stattype = ALL)

ORA-06512:at "SYS.DBMS_STATS", line 24281

ORA-06512:at "SYS.DBMS_STATS", line 24332

ORA-06512:at line 1

异常原因：查询test表统计信息stattype_locked值，发现统计信息被锁定

SQL> select owner,table_name,stattype_locked from dba_tab_statistics a where a.stattype_locked in ('ALL','DATA','CACHE') and table_name='TEST';

OWNER           TABLE_NAME                     STATTYPE_L

--------------- ------------------------------ ----------

SYS             TEST                           ALL

处理方案：将统计信息解锁，然后在执行更新

SQL>exec dbms_stats.unlock_table_stats(ownname => 'SYS',tabname => 'TEST');

PL/SQLprocedure successfully completed.

SQL>exec dbms_stats.gather_table_stats('SYS','TEST');

PL/SQL procedure successfully completed.


注：stattype_locked为空代表统计信息未锁定，为all表示表的统计信息被锁