获得执行计划方法六-dbms_xplan.diskplay_cursor

当我们知道一个SQL语句的sql_id后，可以通过使用dbms_xplan.diskplay_cursor方法来获取执行计划。

FUNCTION DISPLAY_CURSOR RETURNS DBMS_XPLAN_TYPE_TABLE

Argument Name Type In/Out Default?

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

SQL_ID VARCHAR2 IN DEFAULT

CURSOR_CHILD_NO NUMBER(38) IN DEFAULT

FORMAT VARCHAR2 IN DEFAULT

SQL> set linesize 200

SQL> select sql_id

2 from v$sql

3 where sql_text like '%emp%'

4 /

SQL_ID

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

fqxwyjvwrn1cb

dncctsm4cs86j

66zq72yq3r4pt

1gu8t96d0bdmu

1gu8t96d0bdmu

SQL> select * from table(dbms_xplan.display_cursor('fqxwyjvwrn1cb',null,null)) ;

PLAN_TABLE_OUTPUT

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

SQL_ID fqxwyjvwrn1cb, child number 0

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

select sql_id from v$sql where sql_text like '%emp%'

Plan hash value: 903671040

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

| Id | Operation | Name | Rows | Bytes | Cost (%CPU)|

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

| 0 | SELECT STATEMENT | | | | 1 (100)|

|* 1 | FIXED TABLE FULL| X$KGLCURSOR_CHILD | 1 | 523 | 0 (0)|

PLAN_TABLE_OUTPUT

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

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

Predicate Information (identified by operation id):

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

1 - filter(("KGLNAOBJ" LIKE '%emp%' AND

"INST_ID"=USERENV('INSTANCE')))

还有与此类似的display_awr