oracle自带工具（自动优化sql小助手）

发布时间：2020-08-11 20:14:10 作者：310zhang
来源：ITPUB博客阅读：378

1.drop tuning task if task exists （删除之前的优化任务，如果存在的话）

sqlplus / as sysdba

exec DBMS_SQLTUNE.DROP_TUNING_TASK('zhangx_tune_taks'); <<ignore error if raise "taks does not exis "

2.create tuning task ,please replace sql_id 8gn0a9gxnc125 with yours.

创建一个新的sql优化任务，

DECLARE

tune_task VARCHAR2(30);

BEGIN

tune_task:=DBMS_SQLTUNE.CREATE_TUNING_TASK(sql_id=>'8gn0a9gxnc125',task_name=>'zhangx_tune_taks',time_limit => 600,description=>'ProvideSQLID');

END;

3.exec tuning task

BEGIN

DBMS_SQLTUNE.EXECUTE_TUNING_TASK( task_name => 'zhangx_tune_taks' );

END;

4.check tuning finding

set lines 999

set long 100000

set longchunksize 100000

select dbms_sqltune.report_tuning_task('zhangxiong_tune_taks') from dual;

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