--关闭自动统计信息

https://blog.csdn.net/royzhang7/article/details/51172556

明天再仔细看一下. 

select client_name,status from dba_autotask_client;

auto optimizer stats collection ENABLEsql tuning advisor DISABLEDauto space advisor DISABLEDsql> exec DBMS_AUTO_TASK_ADMIN.DISABLE(client_name => ‘auto optimizer stats collection‘,operation => NULL,window_name => NULL); PL/sql procedure successfully completed sql>select client_name,status from dba_autotask_client;auto optimizer stats collection DISABLEDsql tuning advisor DISABLEDauto space advisor DISABLED–删除收集信息EXEC DBMS_STATS.delete_database_stats; --删除数据库统计信息EXEC DBMS_STATS.delete_schema_stats(‘SCOTT‘); --删除用户的统计信息--逐个用户删除select ‘exec DBMS_STATS.delete_schema_stats(‘‘‘||username||‘‘‘‘||‘);‘ from dba_users where account_status=‘OPEN‘ and username not in (‘SYS‘,‘SYSTEM‘,‘DBSNMP‘)EXEC DBMS_STATS.delete_table_stats(‘SCOTT‘,‘EMPLOYEES‘); --删除表的统计信息EXEC DBMS_STATS.delete_index_stats(‘SCOTT‘,‘EMPLOYEES_PK‘); --删除索引统计信息