处理半连接SQL自动改写内连接SQL一例
2017-12-06 15:21
120 查看
昨天刚写了半连接改写系列，今天就遇到了此类型SQL：
耗时：28s
返回：0
查看执行计划，发现ID=3处为 SORT UNIQUE ，而SQL语句并没有DISTINCT关键字，难道SQL进行自动改写了？
为了确认自己想法，我进行以下手动改写，把半连接手动改写成内连接：
改写之前，先确认表与表之间的关系：
可以看出改写后的执行计划于改写之前执行计划基本一致，所以可以确定SQL是进行自动改写内连接而导致的性能问题。
耗时：0.4s
返回：0
耗时：0.4s
返回：0
耗时：0.4s
返回：0
优化前
耗时：28s
返回：0
SELECT D.DAILYAUDITNO, D.TRANSTOACC
FROM PB_DOIC.MM_DAILYREPORT_TD D
WHERE D.REPORTSTATUS = '4'
AND D.TRANSTOACC IN ('00', 'B1')
AND EXISTS (SELECT 1
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD
WHERE DAILYAUDITNO = D.DAILYAUDITNO
AND BUSINESSONE || BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND BUSINESSTWO != '991')
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD E
WHERE E.DAILYAUDITNO = D.DAILYAUDITNO
AND E.BUSINESSONE || E.BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND E.BUSINESSTWO != '991'
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_VOUCHERMODULE_TC V
WHERE V.BUSINESSTYPE = E.BUSINESSONE || E.BUSINESSTWO
AND V.MODULETYPE = '1'
AND V.MODULESTATUS = 0))
FOR UPDATE OF D.TRANSTOACC NOWAIT
Execution Plan
----------------------------------------------------------
Plan hash value: 915590932
--------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 10 | 1160 | 20991 (2)| 00:04:12 |
| 1 | FOR UPDATE | | | | | |
| 2 | NESTED LOOPS | | 1 | 116 | 20945 (2)| 00:04:12 |
| 3 | SORT UNIQUE | | 29 | 1943 | 20928 (2)| 00:04:12 |
|* 4 | INDEX FAST FULL SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 29 | 1943 | 20928 (2)| 00:04:12 |
|* 5 | TABLE ACCESS BY INDEX ROWID| MM_DAILYREPORT_TD | 1 | 49 | 2 (0)| 00:00:01 |
|* 6 | INDEX UNIQUE SCAN | PK_MM_DAILYREPORT_TD | 1 | | 1 (0)| 00:00:01 |
|* 7 | INDEX RANGE SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 1 | 67 | 7 (0)| 00:00:01 |
|* 8 | INDEX RANGE SCAN | PK_MM_VOUCHERMODULE_TC | 1 | 15 | 2 (0)| 00:00:01 |
--------------------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
4 - filter("BUSINESSONE"||"BUSINESSTWO"<>'604988' AND "BUSINESSONE"||"BUSINESSTWO"<>'605988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'606988' AND "BUSINESSONE"||"BUSINESSTWO"<>'607988' AND
"BUSINESSTWO"<>'991')
5 - filter(("D"."TRANSTOACC"='00' OR "D"."TRANSTOACC"='B1') AND "D"."REPORTSTATUS"='4')
6 - access("DAILYAUDITNO"="D"."DAILYAUDITNO")
filter( NOT EXISTS (SELECT /*+ */ 0 FROM "PB_DOIC"."MM_DAILYREPORT_DETAIL_TD" "SYS_ALIAS_2"
WHERE "E"."DAILYAUDITNO"=:B1 AND "E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND "E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS (SELECT
/*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B2||:B3 AND
"V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0)))
7 - access("E"."DAILYAUDITNO"=:B1)
filter("E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND "E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS (SELECT
/*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B1||:B2 AND
"V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0))
8 - access("V"."MODULETYPE"='1' AND "V"."BUSINESSTYPE"=:B1||:B2 AND "V"."MODULESTATUS"=0)
filter("V"."MODULESTATUS"=0)
Statistics
----------------------------------------------------------
1 recursive calls
0 db block gets
3809828 consistent gets
347 physical reads
0 redo size
397 bytes sent via SQL*Net to client
481 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
1 sorts (memory)
0 sorts (disk)
0 rows processed分析
查看执行计划，发现ID=3处为 SORT UNIQUE ，而SQL语句并没有DISTINCT关键字，难道SQL进行自动改写了？
为了确认自己想法，我进行以下手动改写，把半连接手动改写成内连接：
改写之前，先确认表与表之间的关系：
select count(*),count(distinct DAILYAUDITNO) from MM_DAILYREPORT_DETAIL_TD;
COUNT(*) COUNT(DISTINCTDAILYAUDITNO)
-------- -----------------------
5111081 441898
select count(*),count(distinct DAILYAUDITNO) from MM_DAILYREPORT_TD;
COUNT(*) COUNT(DISTINCTDAILYAUDITNO)
-------- -----------------------
441940 441940
--表MM_DAILYREPORT_TD与表MM_DAILYREPORT_DETAIL_TD是1:N的关系，所以改写时候，需要先去重，再连接。
SELECT D.DAILYAUDITNO, D.TRANSTOACC
FROM PB_DOIC.MM_DAILYREPORT_TD D
INNER JOIN (SELECT DISTINCT DAILYAUDITNO
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD
WHERE BUSINESSONE || BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND BUSINESSTWO != '991') TD
ON D.DAILYAUDITNO = TD.DAILYAUDITNO
WHERE D.REPORTSTATUS = '4'
AND D.TRANSTOACC IN ('00', 'B1')
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD E
WHERE E.DAILYAUDITNO = D.DAILYAUDITNO
AND E.BUSINESSONE || E.BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND E.BUSINESSTWO != '991'
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_VOUCHERMODULE_TC V
WHERE V.BUSINESSTYPE = E.BUSINESSONE || E.BUSINESSTWO
AND V.MODULETYPE = '1'
AND V.MODULESTATUS = 0))
FOR UPDATE OF D.TRANSTOACC NOWAIT;
Execution Plan
----------------------------------------------------------
Plan hash value: 1310135718
--------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 25 | 2250 | 21076 (2)| 00:04:13 |
| 1 | FOR UPDATE | | | | | |
| 2 | NESTED LOOPS | | 1 | 90 | 20959 (2)| 00:04:12 |
| 3 | VIEW | | 29 | 1189 | 20929 (2)| 00:04:12 |
| 4 | SORT UNIQUE | | 29 | 1943 | 20929 (2)| 00:04:12 |
|* 5 | INDEX FAST FULL SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 29 | 1943 | 20928 (2)| 00:04:12 |
|* 6 | TABLE ACCESS BY INDEX ROWID| MM_DAILYREPORT_TD | 1 | 49 | 2 (0)| 00:00:01 |
|* 7 | INDEX UNIQUE SCAN | PK_MM_DAILYREPORT_TD | 1 | | 1 (0)| 00:00:01 |
|* 8 | INDEX RANGE SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 1 | 67 | 7 (0)| 00:00:01 |
|* 9 | INDEX RANGE SCAN | PK_MM_VOUCHERMODULE_TC | 1 | 15 | 2 (0)| 00:00:01 |
--------------------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
5 - filter("BUSINESSONE"||"BUSINESSTWO"<>'604988' AND "BUSINESSONE"||"BUSINESSTWO"<>'605988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'606988' AND "BUSINESSONE"||"BUSINESSTWO"<>'607988' AND
"BUSINESSTWO"<>'991')
6 - filter(("D"."TRANSTOACC"='00' OR "D"."TRANSTOACC"='B1') AND "D"."REPORTSTATUS"='4')
7 - access("D"."DAILYAUDITNO"="TD"."DAILYAUDITNO")
filter( NOT EXISTS (SELECT /*+ */ 0 FROM "PB_DOIC"."MM_DAILYREPORT_DETAIL_TD" "SYS_ALIAS_2"
WHERE "E"."DAILYAUDITNO"=:B1 AND "E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND "E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS (SELECT
/*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B2||:B3 AND
"V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0)))
8 - access("E"."DAILYAUDITNO"=:B1)
filter("E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND "E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS (SELECT
/*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B1||:B2 AND
"V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0))
9 - access("V"."MODULETYPE"='1' AND "V"."BUSINESSTYPE"=:B1||:B2 AND "V"."MODULESTATUS"=0)
filter("V"."MODULESTATUS"=0)
Statistics
----------------------------------------------------------
1 recursive calls
0 db block gets
3809828 consistent gets
431 physical reads
0 redo size
397 bytes sent via SQL*Net to client
481 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
1 sorts (memory)
0 sorts (disk)
0 rows processed可以看出改写后的执行计划于改写之前执行计划基本一致，所以可以确定SQL是进行自动改写内连接而导致的性能问题。
优化方法1：
耗时：0.4s
返回：0
--在半连接里加上ROWNUM>0,让SQL不进行展开。
SELECT D.DAILYAUDITNO, D.TRANSTOACC
FROM PB_DOIC.MM_DAILYREPORT_TD D
WHERE D.REPORTSTATUS = '4'
AND D.TRANSTOACC IN ('00', 'B1')
AND EXISTS (SELECT 1
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD
WHERE DAILYAUDITNO = D.DAILYAUDITNO
AND BUSINESSONE || BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND BUSINESSTWO != '991' AND ROWNUM>0)
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD E
WHERE E.DAILYAUDITNO = D.DAILYAUDITNO
AND E.BUSINESSONE || E.BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND E.BUSINESSTWO != '991'
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_VOUCHERMODULE_TC V
WHERE V.BUSINESSTYPE = E.BUSINESSONE || E.BUSINESSTWO
AND V.MODULETYPE = '1'
AND V.MODULESTATUS = 0))
FOR UPDATE OF D.TRANSTOACC NOWAIT;
Execution Plan
----------------------------------------------------------
Plan hash value: 4088075167
------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 49 | 336K (1)| 01:07:15 |
| 1 | FOR UPDATE | | | | | |
|* 2 | FILTER | | | | | |
|* 3 | TABLE ACCESS FULL | MM_DAILYREPORT_TD | 22372 | 1070K| 2632 (2)| 00:00:32 |
| 4 | COUNT | | | | | |
|* 5 | FILTER | | | | | |
|* 6 | INDEX RANGE SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 1 | 67 | 7 (0)| 00:00:01 |
|* 7 | INDEX RANGE SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 1 | 67 | 7 (0)| 00:00:01 |
|* 8 | INDEX RANGE SCAN| PK_MM_VOUCHERMODULE_TC | 1 | 15 | 2 (0)| 00:00:01 |
------------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
2 - filter( EXISTS (SELECT /*+ */ 0 FROM "PB_DOIC"."MM_DAILYREPORT_DETAIL_TD"
"MM_DAILYREPORT_DETAIL_TD" WHERE ROWNUM>0 AND "DAILYAUDITNO"=:B1 AND
"BUSINESSONE"||"BUSINESSTWO"<>'604988' AND "BUSINESSONE"||"BUSINESSTWO"<>'605988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'606988' AND "BUSINESSONE"||"BUSINESSTWO"<>'607988' AND
"BUSINESSTWO"<>'991') AND NOT EXISTS (SELECT /*+ */ 0 FROM
"PB_DOIC"."MM_DAILYREPORT_DETAIL_TD" "SYS_ALIAS_2" WHERE "E"."DAILYAUDITNO"=:B2 AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS
(SELECT /*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B3||:B4
AND "V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0)))
3 - filter(("D"."TRANSTOACC"='00' OR "D"."TRANSTOACC"='B1') AND "D"."REPORTSTATUS"='4')
5 - filter(ROWNUM>0)
6 - access("DAILYAUDITNO"=:B1)
filter("BUSINESSONE"||"BUSINESSTWO"<>'604988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'605988' AND "BUSINESSONE"||"BUSINESSTWO"<>'606988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'607988' AND "BUSINESSTWO"<>'991')
7 - access("E"."DAILYAUDITNO"=:B1)
filter("E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS
(SELECT /*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B1||:B2
AND "V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0))
8 - access("V"."MODULETYPE"='1' AND "V"."BUSINESSTYPE"=:B1||:B2 AND "V"."MODULESTATUS"=0)
filter("V"."MODULESTATUS"=0)
Statistics
----------------------------------------------------------
0 recursive calls
0 db block gets
105048 consistent gets
0 physical reads
0 redo size
397 bytes sent via SQL*Net to client
481 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
0 rows processed优化方法2：
耗时：0.4s
返回：0
--添加hint: /*+ no_unnest */ 目的也是让半连接的sql不展开。与上面改写效果一致。
SELECT D.DAILYAUDITNO, D.TRANSTOACC
FROM PB_DOIC.MM_DAILYREPORT_TD D
WHERE D.REPORTSTATUS = '4'
AND D.TRANSTOACC IN ('00', 'B1')
AND EXISTS (SELECT /*+NO_UNNEST*/1
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD
WHERE DAILYAUDITNO = D.DAILYAUDITNO
AND BUSINESSONE || BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND BUSINESSTWO != '991')
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD E
WHERE E.DAILYAUDITNO = D.DAILYAUDITNO
AND E.BUSINESSONE || E.BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND E.BUSINESSTWO != '991'
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_VOUCHERMODULE_TC V
WHERE V.BUSINESSTYPE = E.BUSINESSONE || E.BUSINESSTWO
AND V.MODULETYPE = '1'
AND V.MODULESTATUS = 0))
FOR UPDATE OF D.TRANSTOACC NOWAIT
Execution Plan
----------------------------------------------------------
Plan hash value: 991259826
-----------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
-----------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 49 | 336K (1)| 01:07:15 |
| 1 | FOR UPDATE | | | | | |
|* 2 | FILTER | | | | | |
|* 3 | TABLE ACCESS FULL | MM_DAILYREPORT_TD | 22372 | 1070K| 2632 (2)| 00:00:32 |
|* 4 | INDEX RANGE SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 1 | 67 | 7 (0)| 00:00:01 |
|* 5 | INDEX RANGE SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 1 | 67 | 7 (0)| 00:00:01 |
|* 6 | INDEX RANGE SCAN| PK_MM_VOUCHERMODULE_TC | 1 | 15 | 2 (0)| 00:00:01 |
-----------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
2 - filter( EXISTS (SELECT /*+ NO_UNNEST */ 0 FROM "PB_DOIC"."MM_DAILYREPORT_DETAIL_TD"
"MM_DAILYREPORT_DETAIL_TD" WHERE "DAILYAUDITNO"=:B1 AND
"BUSINESSONE"||"BUSINESSTWO"<>'604988' AND "BUSINESSONE"||"BUSINESSTWO"<>'605988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'606988' AND "BUSINESSONE"||"BUSINESSTWO"<>'607988' AND
"BUSINESSTWO"<>'991') AND NOT EXISTS (SELECT /*+ */ 0 FROM
"PB_DOIC"."MM_DAILYREPORT_DETAIL_TD" "SYS_ALIAS_2" WHERE "E"."DAILYAUDITNO"=:B2 AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS
(SELECT /*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B3||:B4
AND "V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0)))
3 - filter(("D"."TRANSTOACC"='00' OR "D"."TRANSTOACC"='B1') AND "D"."REPORTSTATUS"='4')
4 - access("DAILYAUDITNO"=:B1)
filter("BUSINESSONE"||"BUSINESSTWO"<>'604988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'605988' AND "BUSINESSONE"||"BUSINESSTWO"<>'606988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'607988' AND "BUSINESSTWO"<>'991')
5 - access("E"."DAILYAUDITNO"=:B1)
filter("E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS
(SELECT /*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B1||:B2
AND "V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0))
6 - access("V"."MODULETYPE"='1' AND "V"."BUSINESSTYPE"=:B1||:B2 AND "V"."MODULESTATUS"=0)
filter("V"."MODULESTATUS"=0)
Statistics
----------------------------------------------------------
1 recursive calls
0 db block gets
105048 consistent gets
0 physical reads
0 redo size
397 bytes sent via SQL*Net to client
481 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
0 rows processed优化方法3：
耗时：0.4s
返回：0
添加hint：/*+ nl_sj */,目的让SQL走semi join
SELECT D.DAILYAUDITNO, D.TRANSTOACC
FROM PB_DOIC.MM_DAILYREPORT_TD D
WHERE D.REPORTSTATUS = '4'
AND D.TRANSTOACC IN ('00', 'B1')
AND EXISTS (SELECT /*+nl_sj*/ 1
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD
WHERE DAILYAUDITNO = D.DAILYAUDITNO
AND BUSINESSONE || BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND BUSINESSTWO != '991')
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD E
WHERE E.DAILYAUDITNO = D.DAILYAUDITNO
AND E.BUSINESSONE || E.BUSINESSTWO NOT IN
('604988', '605988', '606988', '607988')
AND E.BUSINESSTWO != '991'
AND NOT EXISTS
(SELECT 1
FROM PB_DOIC.MM_VOUCHERMODULE_TC V
WHERE V.BUSINESSTYPE = E.BUSINESSONE || E.BUSINESSTWO
AND V.MODULETYPE = '1'
AND V.MODULESTATUS = 0))
FOR UPDATE OF D.TRANSTOACC NOWAIT
Execution Plan
----------------------------------------------------------
Plan hash value: 2686500646
-----------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
-----------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 34 | 3944 | 137K (1)| 00:27:29 |
| 1 | FOR UPDATE | | | | | |
|* 2 | FILTER | | | | | |
| 3 | NESTED LOOPS SEMI | | 34 | 3944 | 137K (1)| 00:27:27 |
|* 4 | TABLE ACCESS FULL| MM_DAILYREPORT_TD | 22372 | 1070K| 2632 (2)| 00:00:32 |
|* 5 | INDEX RANGE SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 1 | 67 | 6 (0)| 00:00:01 |
|* 6 | INDEX RANGE SCAN | IDX_MM_DAILYREPORT_DETAIL_TD | 1 | 67 | 7 (0)| 00:00:01 |
|* 7 | INDEX RANGE SCAN | PK_MM_VOUCHERMODULE_TC | 1 | 15 | 2 (0)| 00:00:01 |
-----------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
2 - filter( NOT EXISTS (SELECT /*+ */ 0 FROM "PB_DOIC"."MM_DAILYREPORT_DETAIL_TD"
"SYS_ALIAS_2" WHERE "E"."DAILYAUDITNO"=:B1 AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS
(SELECT /*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B2||:B3
AND "V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0)))
4 - filter(("D"."TRANSTOACC"='00' OR "D"."TRANSTOACC"='B1') AND "D"."REPORTSTATUS"='4')
5 - access("DAILYAUDITNO"="D"."DAILYAUDITNO")
filter("BUSINESSONE"||"BUSINESSTWO"<>'604988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'605988' AND "BUSINESSONE"||"BUSINESSTWO"<>'606988' AND
"BUSINESSONE"||"BUSINESSTWO"<>'607988' AND "BUSINESSTWO"<>'991')
6 - access("E"."DAILYAUDITNO"=:B1)
filter("E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'604988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'605988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'606988' AND
"E"."BUSINESSONE"||"E"."BUSINESSTWO"<>'607988' AND "E"."BUSINESSTWO"<>'991' AND NOT EXISTS
(SELECT /*+ */ 0 FROM "PB_DOIC"."MM_VOUCHERMODULE_TC" "V" WHERE "V"."BUSINESSTYPE"=:B1||:B2
AND "V"."MODULETYPE"='1' AND "V"."MODULESTATUS"=0))
7 - access("V"."MODULETYPE"='1' AND "V"."BUSINESSTYPE"=:B1||:B2 AND "V"."MODULESTATUS"=0)
filter("V"."MODULESTATUS"=0)
Statistics
----------------------------------------------------------
2114 recursive calls
0 db block gets
83115 consistent gets
1341 physical reads
0 redo size
397 bytes sent via SQL*Net to client
481 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
77 sorts (memory)
0 sorts (disk)
0 rows processed
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