oracle 12c 关闭统计信息收集和启用统计信息收集

--关闭统计信息
col client_name for a60
select client_name,status from DBA_AUTOTASK_CLIENT;
 
CLIENT_NAME                                                  STATUS
------------------------------------------------------------ ----------------
auto optimizer stats collection                              ENABLED
auto space advisor                                           ENABLED
sql tuning advisor                                           ENABLED
 
begin
DBMS_AUTO_TASK_ADMIN.DISABLE(client_name => 'auto optimizer stats collection',operation => NULL,window_name => NULL);
end;
/
 
PL/sql procedure successfully completed.
 
--启用统计信息收集
select client_name,status from DBA_AUTOTASK_CLIENT;
 
CLIENT_NAME                                                  STATUS
------------------------------------------------------------ ----------------
auto optimizer stats collection                              DISABLED
auto space advisor                                           ENABLED
sql tuning advisor                                           ENABLED
 
sql> 
 
begin
DBMS_AUTO_TASK_ADMIN.ENABLE(client_name => 'auto optimizer stats collection',window_name => NULL);
end;
/
 
PL/sql procedure successfully completed.
 
select client_name,status from DBA_AUTOTASK_CLIENT;
 
CLIENT_NAME                                                  STATUS
------------------------------------------------------------ ----------------
auto optimizer stats collection                              ENABLED
auto space advisor                                           ENABLED
sql tuning advisor                                           ENABLED
 
sql>