使用showplan.sql分析sql Performance

Posted 2020-08-27 guilingyang

在HelloDBA网站找到一个分析sql性能的工具—showplan，记录一下

showplan.sql下载路径：http://www.HelloDBA.com/Download/showplan.zip

使用方式就是调用该工具，传入SQL_ID作为参数。

SQL> @/dmp/showplan.sql 26xj87b2f8g6u
Usage: @showplan <SQL_ID> [Plan Hash Value] [Details: [+](B)inds|SQL (T)ext|(Pee(K)ed Binds|(P)lan|(O)utlines|Pre(D)icate|Plan (L)oading|(W)ait events|(S)tatistics]
Description: Show SQL Plan

SQL ID: 26xj87b2f8g6u

------------- SQL Text --------------

SELECT TRIM("A1"."WORK_ORDER"),COUNT(*) FROM  (SELECT DISTINCT "A5"."WORDER_ID" "WORDER_ID" FROM "WIP_WORK_ORDER" "A5","WIP_CODE" "A4" WHERE "A5"."NEXT_PFCD"="A4"."CODE_EXT"(+) AND "A4"."CODE_CATE"(+)=‘ERPP‘ AND "A5"."PLAN_ST_DT">= (SELECT TO_CHAR([email protected]!-31,‘yyyy-mm-dd‘) FROM "SYS"."DUAL" "A6") AND "A5"."STATUS"<>‘3‘) "A2","HLBRHIS_SHIP" "A1" WHERE "A1"."CLM_MFDT">= (SELECT TO_CHAR([email protected]!-31,‘yyyy-mm-dd‘) FROM "SYS"."DUAL" "A3") AND "A2"."WORDER_ID"=TRIM("A1"."WORK_ORDER") GROUP BY "A1"."WORK_ORDER"

------------- SQL Plan (Plan Hash Value:564968535; Parsed by schema:) --------------

     0     ( )SELECT STATEMENT
     1     (0) HASH (GROUP BY) (Cost=4256 Card=65 rows Bytes=0/82)
     2     (1)  NESTED LOOPS (Cost=4255 Card=133150 rows Bytes=0/82)
     3     (2)   NESTED LOOPS (Cost=4255 Card=153566712 rows Bytes=0/82)
     4     (3)    VIEW (Cost=178 Card=102 rows Bytes=0/13)
     5     (4)     HASH (UNIQUE) (Cost=178 Card=102 rows Bytes=0/60)
     6     (5)      HASH JOIN (OUTER) (Cost=177 Card=102 rows Bytes=0/240)
     7     (6)       TABLE ACCESS (BY INDEX ROWID) OF ‘WIP_WORK_ORDER‘ (TABLE) (Cost=171 Card=102 rows Bytes=0/160)
     8     (7)        INDEX (RANGE SCAN) OF ‘IDX1_WIP_WORK_ORDER‘ (INDEX) (Cost=3 Card=729 rows Bytes=0/)
     9     (8)         FAST DUAL (Cost=2 Card=1 rows Bytes=0/)
    10     (6)       INDEX (RANGE SCAN) OF ‘PK_WIP_CODE‘ (INDEX (UNIQUE)) (Cost=6 Card=786 rows Bytes=0/15820)
    11     (3)    PARTITION RANGE (ITERATOR) (Cost=154 Card=153566712 rows Bytes=0/)
    12    (11)     INDEX (RANGE SCAN) OF ‘HLBRHIS_SHIP_CLM_MFDT‘ (INDEX) (Cost=154 Card=153566712 rows Bytes=18735104/)
    13    (12)      FAST DUAL (Cost=2 Card=1 rows Bytes=0/)
    14     (2)   TABLE ACCESS (BY LOCAL INDEX ROWID) OF ‘HLBRHIS_SHIP‘ (TABLE) (Cost=4077 Card=133150 rows Bytes=377257984/56)

------------- Plan Loading (Plan Hash Value:564968535) --------------

14: TABLE ACCESS BY LOCAL INDEX ROWID               ########################################(80.6%)
12: INDEX RANGE SCAN                                                    #####(10.01%)
  2: NESTED LOOPS                                                              #####(9.36%)
  1: HASH GROUP BY                                                           (.02%)
11: PARTITION RANGE ITERATOR                                  (.01%)

------------- Waits Events (Plan Hash Value:564968535) --------------

ON CPU on PHBLWDA1.HLBRHIS_SHIP(TABLE PARTITION)                                               #########################################(82.08%)
ON CPU on PHBLWDA1.HLBRHIS_SHIP_CLM_MFDT(INDEX PARTITION)                        ########(16.24%)
db file sequential read on PHBLWDA1.HLBRHIS_SHIP(TABLE PARTITION)                         #(1.06%)
ON CPU on PHBLWDA1.WIP_WORK_ORDER(TABLE)                                                           (.49%)
db file sequential read on PHBLWDA1.HLBRHIS_SHIP_CLM_MFDT(INDEX PARTITION)   (.11%)
db file scattered read on PHBLWDA1.HLBRHIS_SHIP(TABLE PARTITION)                           (.01%)
db file parallel read on PHBLWDA1.HLBRHIS_SHIP(TABLE PARTITION)                             (0%)
free buffer waits on PHBLWDA1.HLBRHIS_SHIP(TABLE PARTITION)                                   (0%)

------------- Statistics Data (Plan Hash Value:564968535)--------------

Loads: 28
Load Versions: 4
First Load Time: 2017-01-07/13:13:49
Last Load Time: 2017-01-10/01:33:57
User Openings: 0
Parse Calls: 312
Executions: 312
Sorts(Average): 0
Fetches(Average): 2
Disk Reads(Average): 124719.76
Buffer Gets(Average): 11172207.862
Elapsed Time(Average): 202.694 seconds
CPU Time(Average): 200.596 seconds
Run Time Memory(Average): 0M
PGA Size(Maximum): .009G
Temp Space(Maximum): 0G
SQL>

來自於http://www.hellodba.com/reader.php?ID=218&lang=EN的[One single SQL helps you to analyze the performance of a SQL]