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标题: Oracle自动统计任务的关闭与启用 [打印本页]

作者: 王亮 时间: 2021-2-28 20:00
标题: Oracle自动统计任务的关闭与启用
--查看统计信息的状态
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

--关闭统计信息收集
begin
DBMS_AUTO_TASK_ADMIN.DISABLE(client_name => 'auto optimizer stats collection',
operation => NULL,
window_name => NULL);
end;
/

PL/SQL procedure successfully completed.

--检查统计信息的状态
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>

--启用统计信息收集
begin
DBMS_AUTO_TASK_ADMIN.ENABLE(client_name => 'auto optimizer stats collection',
operation => NULL,
window_name => NULL);
end;
/

PL/SQL procedure successfully completed.

--检查统计信息的状态
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>

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