Oracle 是分区表,但条件不带分区条件的SQL(筛选条件:当天,查询超过1s,某些SQL类型)
/*
查找是分区表,但条件不带分区的SQL
COMMAND_TYPE:
查找的视图:V$SQLCOMMAND
2:INSERT
3:SELECT
6:UPDATE
7:DELETE
189:MERGE
注释:
先通过SQL执行计划视图中查询OPERATION||'
'||OPTIONS=TABLE ACCESS FULL 对应ID上一层是PARTITION RANGE ALL
的SQL_ID,再查找详细的SQL语句(+筛选条件)
*/
SELECT S.SQL_TEXT,
S.SQL_FULLTEXT,
S.SQL_ID,
ROUND (ELAPSED_TIME
/ 1000000 /
( CASE
WHEN (EXECUTIONS
= 0 OR NVL (EXECUTIONS, 1 )
= 1) THEN
1
ELSE
EXECUTIONS
END ),
2 )
"执行时间'S'",
P1.OBJECT_OWNER,
P1.OBJECT_NAME,
P1.OPERATION,
S.LAST_LOAD_TIME,
--P1.P_PLAN_HASH_VALUE,
S.PLAN_HASH_VALUE
FROM V$SQLAREA
S
JOIN ( SELECT DISTINCT /*去重是因为
1SQL多次调用,执行计划一样 不去重会出现多值 最终SQL会出现多个*/
A.SQL_ID,
A.OBJECT_OWNER,
A.OBJECT_NAME,
P.OPERATION
FROM (SELECT P.SQL_ID,
P.OBJECT_OWNER,
P.OBJECT_NAME,
P.PLAN_HASH_VALUE,
P.OPERATION || '
' || P.OPTIONS "OPERATION",
P.ID, --不带ID
若一个SQL 2个分区表且2个分区表都没有加分区条件 会产生笛卡尔集
P.HASH_VALUE,
P.PLAN_HASH_VALUE P_PLAN_HASH_VALUE
FROM V$SQL_PLAN
P
WHERE P.OPERATION
|| ' ' ||
P.OPTIONS =
'PARTITION
RANGE ALL' ) P --查找执行计划是‘PARTITION
RANGE ALL’ 分区全扫 ,而不是‘PARTITION RANGE SINGLE’部分分区扫描
JOIN (SELECT SQL_ID,
P.OBJECT_OWNER,
P.OBJECT_NAME,
P.PLAN_HASH_VALUE,
P.OPERATION || '
' || P.OPTIONS,
P.ID - 1 ID , --执行计划
显示‘PARTITION RANGE ALL’在‘TABLE ACCESS FULL’ 下一行 也就是id-1和分区全扫的id,全部关联后才能过滤出真正的表
P.HASH_VALUE
FROM V$SQL_PLAN
P
WHERE (P.OBJECT_NAME IN
( SELECT PT.TABLE_NAME FROM USER_PART_TABLES
PT))
AND P.OPERATION
|| ' ' ||
P.OPTIONS = 'TABLE ACCESS FULL' --查找执行计划是‘TABLE
ACCESS FULL’ 表全扫...
AND P.OBJECT_OWNER
= '&USERNAME'
AND TO_CHAR(P.TIMESTAMP, 'YYYY-MM-DD' )
=
TO_CHAR( SYSDATE , 'YYYY-MM-DD' ))
A
ON P.SQL_ID
= A.SQL_ID
AND P.ID
= A.ID --2个关联条件最终得出 是分区表但没带分区条件的表/sql_id...等
) P1
ON S.SQL_ID
= P1.SQL_ID
WHERE ROUND (ELAPSED_TIME
/ 1000000 /
( CASE
WHEN (EXECUTIONS
= 0 OR NVL (EXECUTIONS, 1 )
= 1) THEN
1
ELSE
EXECUTIONS
END ),
2 )
> 1 --100
0000微秒=1S
AND S.PARSING_SCHEMA_NAME
= '&USERNAME'
AND TO_CHAR(S.LAST_LOAD_TIME, 'YYYY-DD-MM' )
=
TO_CHAR( SYSDATE , 'YYYY-DD-MM' )
AND S.COMMAND_TYPE IN (2 , 3, 5 , 6 , 189)
ORDER BY S.ELAPSED_TIME DESC ;
祝好~
祝好~