• cmds系统归并缓慢的处理过程 2017-2-16

     
    检查反应较慢的时间段,数据库整体运行情况,从awr报告总看看是否有异常


     
    以上是两个节点的等待事件排行,其中发现cursor: pin S wait on X等待事件类型是并行,切较高,开始分析的时候先留意一下,接着向下看

     
     
    在其他的sql方面,比如逻辑读,物理读等方面基本上算是正常的,平时也都可以看到类似的存储过程和sql,但是在CPU time栏位,明显有异常的SQL存在.具体的sql文本为:
    1. SELECT /* OPT_DYN_SAMP */ /*+ ALL_ROWS IGNORE_WHERE_CLAUSE NO_PARALLEL(SAMPLESUB) opt_param('parallel_execution_enabled', 'false') NO_PARALLEL_INDEX(SAMPLESUB) NO_SQL_TUNE */ NVL(SUM(C1), : "SYS_B_00"),
    2. 	NVL(SUM(C2), : "SYS_B_01")
    3. FROM (
    4. 	SELECT /*+ IGNORE_WHERE_CLAUSE NO_PARALLEL("D") FULL("D") NO_PARALLEL_INDEX("D") */ : "SYS_B_02" AS C1,
    5. 		CASE 
    6. 			WHEN "D"."CONTACTTEXT" LIKE : "SYS_B_03"
    7. 				AND "D"."CONTACTTYPECODE" = : "SYS_B_04"
    8. 				AND "D"."SYSSRC" <> : "SYS_B_05"
    9. 				AND "D"."SYSSRC" <> : "SYS_B_06"
    10. 				AND "D"."SYSSRC" <> : "SYS_B_07"
    11. 				THEN : "SYS_B_08"
    12. 			ELSE : "SYS_B_09"
    13. 			END AS C2
    14. 	FROM "CMDS"."STD_CONTRACT" SAMPLE BLOCK(: "SYS_B_10", : "SYS_B_11") SEED(: "SYS_B_12") "D"
    15. 	) SAMPLESUB
    这个sql是oracle内部执行的,这是oracle发生了动态采样的时候会有的sql.
    怀疑Oracle在某个SQL中采用了调节dynamic sample比例的过程，Oracle从11g开始应用一种自动调节的动态收集机制。如果一个SQL对应数据表很大，而且应该用并行策略，同时有没有统计量。这个时候，Oracle会自己调节采样比例，到一个比较大的取值。
    awr报告下面的其他部分基本上都是正常的，磁盘的速度，和其他信息，现在怀疑两点：
    1.怀疑并行导致
    2.怀疑表的统计信息不准确
    下面首先检查表和表上面索引的并行度情况：
    1. SQL> select degree,table_name from user_tables where degree > '1';
    3. no rows selected
    5. SQL> select degree,table_name,index_name from user_indexes where degree > '1';
    7. DEGREE                                   TABLE_NAME                     INDEX_NAME
    8. ---------------------------------------- ------------------------------ ------------------------------
    9. 8                                        PSN_CUSTOMER_UPD_BAK           IDX_PSN_CUSTOMER_UPD_NEW1_BAK
    10. 16                                       GUIBING_CHECK_1021_2           IDX_GUIBING_CHECK_NO
    11. 128                                      PSN_CUSTOMER                   IDX_PSN_CUST_5YS2
    12. 128                                      PSN_CUSTOMER                   IDX_PSN_CUST_CUSTID
    13. 8                                        CHECK_UPD_BAK                  IDX_CHECK_UPD_NEW1_BAK
    14. 8                                        GRP_CUSTOMER                   GRP_CUSTOMER_IDX2
    15. 16                                       STD_CONTRACT                   IDX_STD_SGID
    16. 8                                        COMBINED_CNTR                  COMBINED_CNTR_IDX2
    17. 8                                        CNTR_CG_ID                     CNTR_CGID_IDX2

    上面的结果看cmds用户的表并行度是正确的，我们一般不设置表的并行度，如有需求，手工在sql中添加hint提示，索引的并行度是错误的，首先不应该大于1，并且在PSN_CUSTOMER上面，并行度太高了，cpus一共是128.
    检查表的统计信息情况：
    1. select last_analyzed,table_name from user_tables where table_name in ('PSN_CUSTOMER_UPD_BAK','GUIBING_CHECK_1021_2','PSN_CUSTOMER','CHECK_UPD_BAK','GRP_CUSTOMER','STD_CONTRACT','COMBINED_CNTR','CNTR_CG_ID');
    3. LAST_ANAL TABLE_NAME
    4. --------- ------------------------------
    5. 21-SEP-16 CHECK_UPD_BAK
    6. 23-DEC-16 CNTR_CG_ID
    7. 15-FEB-17 COMBINED_CNTR
    8. 06-FEB-17 GRP_CUSTOMER
    9. 21-OCT-16 GUIBING_CHECK_1021_2
    10. 19-NOV-16 PSN_CUSTOMER
    11. 01-SEP-16 PSN_CUSTOMER_UPD_BAK
    12. 06-FEB-17 STD_CONTRACT
    表统计信息一般没有大问题，个别感觉稍长时间没更新的，手工更新一下就可以，没有差的太多，这个可以忽略了
    1. SQL> exec DBMS_STATS.GATHER_table_STATS ('CMDS','PSN_CUSTOMER',estimate_percent => dbms_stats.auto_sample_size,method_opt => 'for all columns size auto',degree => 15,cascade => true);
    3. PL/SQL procedure successfully completed.

    目前定位问题是以上几个表上面索引的并行度导致了sql执行产生了较高的cursor: pin S wait on X，导致相关表上面数据更新缓慢
    下面删除并行，后续观察数据库情况
    1. select 'alter index '||index_name||' noparallel;' from user_indexes where degree > '1';
    3. 'ALTERINDEX'||INDEX_NAME||'NOPARALLEL;'
    4. ------------------------------------------------------
    5. alter index IDX_GUIBING_CHECK_NO noparallel;
    6. alter index IDX_CHECK_UPD_NEW1_BAK noparallel;
    7. alter index IDX_PSN_CUSTOMER_UPD_NEW1_BAK noparallel;
    8. alter index IDX_STD_SGID noparallel;
    9. alter index IDX_PSN_CUST_5YS2 noparallel;
    10. alter index IDX_PSN_CUST_CUSTID noparallel;
    11. alter index GRP_CUSTOMER_IDX2 noparallel;
    12. alter index CNTR_CGID_IDX2 noparallel;
    13. alter index COMBINED_CNTR_IDX2 noparallel;

    之后检查发现归并的效率并没有得到提高.

    检查索引情况
    1. SQL> select status,index_name from user_ind_subpartitions;
    3. STATUS   INDEX_NAME
    4. -------- ------------------------------
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    152. USABLE   IDX_CONTACTLIST_CUSTID
    153. USABLE   IDX_CONTACTLIST_CUSTID
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    169. USABLE   IDX_CONTACTLIST_CUSTID
    170. USABLE   IDX_CONTACTLIST_CUSTID
    171. USABLE   CNTR_ID_IDX1
    172. USABLE   CNTR_ID_IDX1
    173. USABLE   CNTR_ID_IDX1
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    213. USABLE   IDX_CONTACTLIST_CUSTID
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    337. USABLE   IDX_CONTACTLIST_CUSTID
    338. USABLE   IDX_CONTACTLIST_CUSTID
    339. USABLE   IDX_CONTACTLIST_CUSTID
    340. USABLE   IDX_CONTACTLIST_CUSTID
    341. USABLE   CNTR_ID_IDX1
    342. USABLE   CNTR_ID_IDX1
    343. USABLE   CNTR_ID_IDX1
    344. USABLE   CNTR_ID_IDX1
    345. USABLE   CNTR_ID_IDX1
    346. USABLE   CNTR_ID_IDX1
    347. USABLE   CNTR_ID_IDX1
    348. USABLE   CNTR_ID_IDX1
    349. USABLE   CNTR_ID_IDX1
    350. USABLE   CNTR_ID_IDX1
    351. USABLE   CNTR_ID_IDX1
    352. USABLE   CNTR_ID_IDX1
    353. USABLE   CNTR_ID_IDX1
    354. USABLE   CNTR_ID_IDX1
    355. USABLE   CNTR_ID_IDX1
    356. USABLE   CNTR_ID_IDX1
    357. USABLE   CNTR_ID_IDX1
    358. USABLE   CNTR_ID_IDX1
    359. USABLE   CNTR_ID_IDX1
    360. USABLE   CNTR_ID_IDX1
    361. USABLE   CNTR_ID_IDX1
    362. USABLE   CNTR_ID_IDX1
    363. USABLE   CNTR_ID_IDX1
    364. USABLE   CNTR_ID_IDX1
    365. USABLE   CNTR_ID_IDX1
    366. USABLE   CNTR_ID_IDX1
    367. USABLE   CNTR_ID_IDX1
    368. USABLE   CNTR_ID_IDX1
    369. USABLE   CNTR_ID_IDX1
    370. USABLE   CNTR_ID_IDX1
    371. USABLE   CNTR_ID_IDX1
    372. USABLE   CNTR_ID_IDX1
    373. USABLE   CNTR_ID_IDX1
    374. USABLE   CNTR_ID_IDX1
    375. USABLE   CNTR_ID_IDX1
    376. USABLE   CNTR_ID_IDX1
    377. USABLE   CNTR_ID_IDX1
    378. USABLE   CNTR_ID_IDX1
    379. USABLE   CNTR_ID_IDX1
    380. USABLE   CNTR_ID_IDX1
    381. USABLE   CNTR_ID_IDX1
    382. USABLE   CNTR_ID_IDX1
    383. USABLE   CNTR_ID_IDX1
    384. USABLE   CNTR_ID_IDX1
    385. USABLE   CNTR_ID_IDX1
    386. USABLE   CNTR_ID_IDX1
    387. USABLE   CNTR_ID_IDX1
    388. USABLE   CNTR_ID_IDX1
    389. USABLE   CNTR_ID_IDX1
    390. USABLE   CNTR_ID_IDX1
    391. USABLE   CNTR_ID_IDX1
    392. USABLE   CNTR_ID_IDX1
    393. USABLE   CNTR_ID_IDX1
    394. USABLE   CNTR_ID_IDX1
    395. USABLE   CNTR_ID_IDX1
    396. USABLE   CNTR_ID_IDX1
    397. USABLE   CNTR_ID_IDX1
    398. USABLE   CNTR_ID_IDX1
    399. USABLE   CNTR_ID_IDX1
    400. USABLE   CNTR_ID_IDX1
    401. USABLE   CNTR_ID_IDX1
    402. USABLE   CNTR_ID_IDX1
    403. USABLE   CNTR_ID_IDX1
    404. USABLE   CNTR_ID_IDX1
    405. USABLE   CNTR_ID_IDX1
    406. USABLE   CNTR_ID_IDX1
    407. USABLE   CNTR_ID_IDX1
    408. USABLE   CNTR_ID_IDX1
    409. USABLE   CNTR_ID_IDX1
    410. USABLE   CNTR_ID_IDX1
    411. USABLE   CNTR_ID_IDX1
    412. USABLE   CNTR_ID_IDX1
    413. USABLE   CNTR_ID_IDX1
    414. USABLE   CNTR_ID_IDX1
    415. USABLE   CNTR_ID_IDX1
    416. USABLE   CNTR_ID_IDX1
    417. USABLE   CNTR_ID_IDX1
    418. USABLE   CNTR_ID_IDX1
    419. USABLE   CNTR_ID_IDX1
    420. USABLE   CNTR_ID_IDX1
    421. USABLE   CNTR_ID_IDX1
    422. USABLE   CNTR_ID_IDX1
    423. USABLE   CNTR_ID_IDX1
    424. USABLE   CNTR_ID_IDX1
    425. USABLE   CNTR_ID_IDX1
    426. USABLE   CNTR_ID_IDX1
    427. USABLE   CNTR_ID_IDX1
    428. USABLE   CNTR_ID_IDX1
    429. USABLE   CNTR_ID_IDX1
    430. USABLE   CNTR_ID_IDX1
    431. USABLE   CNTR_ID_IDX1
    432. USABLE   CNTR_ID_IDX1
    433. USABLE   CNTR_ID_IDX1
    434. USABLE   CNTR_ID_IDX1
    435. USABLE   CNTR_ID_IDX1
    436. USABLE   CNTR_ID_IDX1
    437. USABLE   CNTR_ID_IDX1
    438. USABLE   CNTR_ID_IDX1
    439. USABLE   CNTR_ID_IDX1
    440. USABLE   CNTR_ID_IDX1
    441. USABLE   CNTR_ID_IDX1
    442. USABLE   CNTR_ID_IDX1
    443. USABLE   CNTR_ID_IDX1
    444. USABLE   CNTR_ID_IDX1
    445. USABLE   CNTR_ID_IDX1

    1. SQL> select status,index_name,table_name from user_indexes where status !='UNUSABLE';
    3. STATUS   INDEX_NAME                     TABLE_NAME
    4. -------- ------------------------------ ------------------------------
    5. VALID    PK_TREE_TB                     TREE_TB
    6. VALID    SYS_C0015294                   CUS_MERGE_QUERY
    7. VALID    PK_CUST_REL_INFO               CUST_REL_INFO
    8. VALID    IDX_CUST_RELATION_UPD_1        CUST_RELATION_UPD
    9. VALID    IDX_CUST_RELATION_UPD_2        CUST_RELATION_UPD
    10. VALID    TMP_IDX2_UNCNTRNO              CNTR_NO_UN_20160912
    11. VALID    TMP_IDX1_UNCNTRNO              CNTR_NO_UN
    12. VALID    SYS_IL0020101372C00045$$       SYS_EXPORT_SCHEMA_01
    13. VALID    SYS_C0024368                   SYS_EXPORT_SCHEMA_01
    14. VALID    SYS_MTABLE_00132B8FC_IND_1     SYS_EXPORT_SCHEMA_01
    15. VALID    SYS_MTABLE_00132B8FC_IND_2     SYS_EXPORT_SCHEMA_01
    16. VALID    SYS_C0015292                   SUSP_CUSTOMER
    17. VALID    IDX_PSN_CUSTOMER_UPD_NEW1_BAK  PSN_CUSTOMER_UPD_BAK
    18. VALID    IDX_PSN_CUSTOMER_UPD_1         PSN_CUSTOMER_UPD_20160901
    19. VALID    IDX_PSN_CUSTOMER_UPD_2         PSN_CUSTOMER_UPD_20160901
    20. VALID    IDX_PSN_HLDR_UPD_1             PSN_HLDR_UPD
    21. VALID    IDX_PSN_HLDR_UPD_2             PSN_HLDR_UPD
    22. VALID    IDX_CUST_RELATION_ID           CUST_RELATION
    23. VALID    IDX_CUST_RELATION_NO           CUST_RELATION
    24. VALID    SYS_C0024706                   CUST_NO
    25. VALID    SYS_C0015296                   CUST_MERGE_MANAGE
    26. VALID    PK_CUST_INFO                   CUST_INFO
    27. VALID    PK_CUST_FAM_SPLITSHOW          CUST_FAM_SPLITSHOW
    28. VALID    PK_CUST_FAM_SPLIT              CUST_FAM_SPLIT
    29. VALID    PK_CUST_FAM_INFO               CUST_FAM_INFO
    30. VALID    PK_CUST_FAM_DISPLAY            CUST_FAM_DISPLAY
    31. VALID    PK_CUST_FAM_CHECKQUERY         CUST_FAM_CHECKQUERY
    32. VALID    PK_CUST_FAM_CHECK              CUST_FAM_CHECK
    33. VALID    PK_CUSTRELATE                  CUSTRELATE
    34. VALID    PK_AU_CALENDAR                 AU_WORKCALENDAR
    35. VALID    PK_AU_VISITOR                  AU_VISITOR
    36. VALID    PK_AU_USERPROFILE              AU_USERPROFILE
    37. VALID    PK_LOGIN                       AU_USER
    38. VALID    IDX_USER_LOGINID               AU_USER
    39. VALID    PK_AU_SYSPARAS                 AU_SYSPARAS
    40. VALID    SYS_IL0001860042C00012$$       AU_SYSERROR
    41. VALID    SYS_IL0001860042C00013$$       AU_SYSERROR
    42. VALID    PK_AU_SYSERROR                 AU_SYSERROR
    43. VALID    PK_AU_RESOURCE                 AU_RESOURCE
    44. VALID    PK_AU_PROXYHISTORY             AU_PROXYHISTORY
    45. VALID    PK_AU_POSITION                 AU_POSITION
    46. VALID    PK_AU_PARTYTYPE                AU_PARTYTYPE
    47. VALID    PK_AU_PARTYRELATIONTYPE        AU_PARTYRELATIONTYPE
    48. VALID    PK_AU_PARTYRELATION            AU_PARTYRELATION
    49. VALID    IDX_PR_PARENTCODE_CHILDCODE    AU_PARTYRELATION
    50. VALID    PK_AU_PARTY                    AU_PARTY
    51. VALID    PK_AU_LOGIN_LOG                AU_LOGIN_LOG
    52. VALID    PK_AU_HISTORY                  AU_HISTORY
    53. VALID    SYS_IL0001860032C00011$$       AU_HISTORY
    54. VALID    PK_AU_FUNCTREE                 AU_FUNCTREE
    55. VALID    IDX_UNIQUE_TOTALCODE           AU_FUNCTREE
    56. VALID    PK_AU_EMPLOYEE                 AU_EMPLOYEE
    57. VALID    PK_AU_DEPARTMENT               AU_DEPARTMENT
    58. VALID    PK_AU_CONNECTRULE              AU_CONNECTRULE
    59. VALID    PK_AU_COMPANY                  AU_COMPANY
    60. VALID    PK_AU_AUTHORIZE_LOG            AU_AUTHORIZE_LOG
    61. VALID    PK_AU_AUTHORIZE                AU_AUTHORIZE
    62. VALID    PK_AU_APPENDDATA               AU_APPENDDATA
    63. VALID    CONTACTLIST_IND1               CONTACTLIST
    64. VALID    CONTACTLIST_IND2               CONTACTLIST
    65. VALID    GRPPARTY_RELATION_IND1         GRP_PARTY_RELATION
    66. VALID    GRPPARTY_RELATION_IND2         GRP_PARTY_RELATION
    67. VALID    IDX_PSN_CUSTOMER_UPD_NEW1      PSN_CUSTOMER_UPD
    68. VALID    IDX_PSN_CUSTOMER_UPD_NEW2      PSN_CUSTOMER_UPD
    69. VALID    IDX_GRPPERSON_INFO             GRP_PERSON
    70. VALID    IDX_GRPPERSON_PARTYID          GRP_PERSON
    71. VALID    IDX_GUIBING_CHECK_NO           GUIBING_CHECK_1021_2
    72. VALID    GUIBINGTEST_IND1               GUIBINGTEST
    73. VALID    SYS_IL0001860089C00006$$       EMP_JOB
    74. VALID    PK_EMP_JOB                     EMP_JOB
    75. VALID    EMP_ID_UNIQUE                  EMP_INFO
    76. VALID    PK_INFO                        EMP_INFO
    77. VALID    PK_EDUCATION                   EMP_EDUCATION
    78. VALID    DUBIOUSRELATION_INDEX_PCBSC    DUBIOUSRELATION
    79. VALID    DUBIOUSRELATION_INDEX          DUBIOUSRELATION
    80. VALID    PK_DB_USERINFO                 DB_USERINFO
    81. VALID    IDX_UNIQUE_BUILD_ROOM          DB_ROOM
    82. VALID    PK_DB_ROOM                     DB_ROOM
    83. VALID    PK_DB_ORDER                    DB_ORDER
    84. VALID    PK_DB_ITEM                     DB_ITEM
    85. VALID    PK_DB_DISCOUNT                 DB_DISCOUNT
    86. VALID    PK_DB_BUILD                    DB_BUILD
    87. VALID    PK_DB_BOOK                     DB_BOOK
    88. VALID    PK_DB_ACCOUNT                  DB_ACCOUNT
    89. VALID    IDXTMPSTDCONTRACTINCR000002    TMP_STD_CONTRACT_INCR_000002
    90. VALID    IND_OPEN_ID                    CMDS_TS
    91. VALID    MERGTOAUDIT_INDEX              MERGTOAUDIT
    92. VALID    SYS_C0015300                   MERGE_VERIFY_QUERY
    93. VALID    SYS_C0015302                   MERGE_VERIFY
    94. VALID    SYS_C0015304                   MERGE_RESULT_QUERY
    95. VALID    SYS_C0015306                   MERGED_MESSAGE
    96. VALID    SYS_C0015271                   MANUALSPLITSINGLE
    97. VALID    SYS_C0015281                   MANUALSPLITRESULTSINGLE
    98. VALID    PK_MANUALSPLITRESULTLIST       MANUALSPLITRESULTLIST
    99. VALID    SYS_C0015276                   MANUALSPLITCHECKSINGLE
    100. VALID    PK_MANUALSPLITCHECKLIST        MANUALSPLITCHECKLIST
    101. VALID    PK_MANUALMERGERESULTLIST       MANUALMERGERESULTLIST
    102. VALID    SYS_C0023002                   LISTTYPE
    103. VALID    SYS_C0022997                   LISTORDER
    104. VALID    SYS_C0022998                   LISTORDER
    105. VALID    SYS_C0022995                   LISTGROUP
    106. VALID    PK_TASTFO                      IPSNCUSTOMER
    107. VALID    IDX_X_FANSINFO_1214            X_FANSINFO_1214
    108. VALID    IDX_X_FANSINFO                 X_FANSINFO_1207
    109. VALID    PK_WSPARAM                     WSPARAM
    110. VALID    PK_VERSIONINFO                 VERSIONINFO
    111. VALID    PK_PURVIEWINFO_1               PURVIEWINFOERR
    112. VALID    PK_PURVIEWINFO                 PURVIEWINFO
    113. VALID    IDX_ZB_2                       TEMP_PSN_CUSTOMER_REP_3
    114. VALID    IDX_TEMP_PSN_CUSTOMER_REP_3    TEMP_PSN_CUSTOMER_REP_3
    115. VALID    IDX_ZB_032001                  TEMP_PSN_CUSTOMER_REP_3
    116. VALID    IDX_ZB_1                       TEMP_PSN_CNTR_HOLDER_REP_3
    117. VALID    PK_REGISTERINFO                REGISTERINFO
    118. VALID    INDEX_REGISTERINFO_PARTYID     REGISTERINFO
    119. VALID    SYS_C0022991                   BLACKORWHITE
    120. VALID    SYS_C0022988                   BLACKLIST
    121. VALID    PK_BINDPOLOPTION               BINDPOLOPTION
    122. VALID    IDX_BINDPOLINFO_PARTYID        BINDPOLINFO
    123. VALID    IDX_BINDPOLINFO_CNTRNO         BINDPOLINFO
    124. VALID    PK_FACTORY                     FACTORY
    125. VALID    IDX_ZB_031802                  TEMP_PERSON_REP_3
    126. VALID    IDX_ZB_031904                  TEMP_PERSON_REP_21
    127. VALID    IDX_ZB_31801                   TEMP_INSURED_REP_3
    128. VALID    PK_ORDERS                      ORDERS
    129. VALID    PK_ORDERCONTENT                ORDERCONTENT
    130. VALID    IND_OPENIDPUTINFOBYCCS         OPENIDPUTINFOBYCCS
    131. VALID    OPENIDINFO_IND1                OPENIDINFO
    132. VALID    OPENIDINFO_IND2                OPENIDINFO
    133. VALID    INDEX_NEW_CLERK_CODE           NEW_CLERK_CODE
    134. VALID    IDX_INSURED_UPD_1              INSURED_UPD
    135. VALID    IDX_INSURED_UPD_2              INSURED_UPD
    136. VALID    INSURED_TMP_STATS_BAK          INSURED_TMP_STATS_BAK
    137. VALID    SYS_IL0007431970C00026$$       INSURED_TMP_STATS_BAK
    138. VALID    TMP_IDX1_JSAPPLNO              T_APPL_NO_JS
    139. VALID    INDEX_APPL_INSURED             APPL_INSURED
    140. VALID    INDEX_APPL_INSURED_CUSTNO      APPL_INSURED
    141. VALID    PK_APPL_STATE                  APPL_STATE
    142. VALID    INDEX_APPL_STATE               APPL_STATE
    143. VALID    INDEX_APPL_STATE_CNTRNO        APPL_STATE
    144. VALID    INDEX_INSUR_APPL               INSUR_APPL
    145. VALID    INDEX_INSUR_APPL_APPLNO        INSUR_APPL
    146. VALID    INDEX_INSUR_APPL_CUSTNO        INSUR_APPL
    147. VALID    IDX_INSURED_NO                 INSURED
    148. VALID    IDX_INSURED                    INSURED
    149. VALID    IDX_IDAUTHENTICATION_IDNO      IDAUTHENTICATION
    150. VALID    IDX_IDAUTHENTICATION_REID      IDAUTHENTICATION
    151. VALID    IDX_PERSON_YS                  PERSON_E
    152. VALID    IDX_PERSON_NAME                PERSON_E
    153. VALID    IDX_PERSON_PARTYID             PERSON_E
    154. VALID    IDX_PERSON_YS_1                PERSON
    155. VALID    PERSON_IND1                    PERSON
    156. VALID    PK_PASSWORDSTAT_1              PASSWORDSTATERR
    157. VALID    PK_PASSWORDSTAT                PASSWORDSTAT
    158. VALID    PK_PASSWORDINFO_TEMP_1126      PASSWORDINFO_TEMP_20141126
    159. VALID    PK_PASSWORDINFO_TEMP           PASSWORDINFO_TEMP
    160. VALID    PK_PASSWORDINFO_1              PASSWORDINFOERR
    161. VALID    PK_PASSWORDINFO                PASSWORDINFO
    162. VALID    PK_APPL_BNFR                   APPL_BNFR
    163. VALID    INDEX_APPL_BNFR                APPL_BNFR
    164. VALID    PK_ALL_DBLINK_INCR             ALL_DBLINK_INCR
    165. VALID    PK_ALL_DBLINK                  ALL_DBLINK
    166. VALID    PK_AGENT                       AGENT
    167. VALID    PK_ADDRCITIZENINFO             ADDRCITIZENINFO
    168. VALID    SYS_IL0008889750C00036$$       PLAN_TABLE
    169. VALID    PK_AASTFOA                     CUSTDETAIL
    170. VALID    IDX_CUSTOMINFO_CNTR_ID         CUSTOMINFO_E_SINGLE_CNTR
    171. VALID    SYS_C0015298                   CUSTOMER_MERGE_QUERY
    172. VALID    PK_CUSTOMERINFO                CUSTOMERINFO
    173. VALID    PK_CUSTOMERHISINFO             CUSTOMERHISINFO
    174. VALID    IDX_PSN_CUST_5YS2              PSN_CUSTOMER
    175. VALID    IDX_PSN_CUST_CUSTID            PSN_CUSTOMER
    176. VALID    PSN_CUSTOMER_IDX1              PSN_CUSTOMER
    177. VALID    IDX_PSN_CUST_UPDDATE           PSN_CUSTOMER
    178. VALID    TMP_IDX_CONTACTTEXT            TEMP_CONTACT_LIST_DUBIOUS
    179. VALID    TMP_IDX_CUSTID                 TEMP_CONTACT_LIST_DUBIOUS
    180. VALID    IDX_GRPINFO_UPDDATE            GRPINFO
    181. VALID    CY_SCH_BRANCH_PK               CY_SCH_BRANCH
    182. VALID    CY_SCHTASK_ITEM_LOG_IDX4_OLD   CY_SCHTASK_ITEM_LOG_20170802
    183. VALID    CY_SCHTASK_ITEM_LOG_IDX3       CY_SCHTASK_ITEM_LOG
    184. VALID    CY_SCHTASK_ITEM_LOG_IDX4       CY_SCHTASK_ITEM_LOG
    185. VALID    CY_SCHTASK_ITEM_LOG_IDX1       CY_SCHTASK_ITEM_LOG
    186. VALID    CY_SCHTASK_ITEM_LOG_IDX2       CY_SCHTASK_ITEM_LOG
    187. VALID    CY_SCHPLAN_TASK_RUNTIME_K0     CY_SCHPLAN_TASK_RUNTIME
    188. VALID    PK_CY_SCHPLAN_TASK_BRANCH      CY_SCHPLAN_TASK_BRANCH
    189. VALID    PK_CITIZENSIMPLEINFO           CITIZENSIMPLEINFO
    190. VALID    PK_CITIZENINFO                 CITIZENINFO
    191. VALID    IDX_CHECK_UPD_NEW1_BAK         CHECK_UPD_BAK
    192. VALID    IDX_WECHAT_OPENID_1214         T_WECHAT_REGIST_1214
    193. VALID    IDX_WECHAT_OPENID              T_WECHAT_REGIST_1208
    194. VALID    IDX_WECHAT_REGID               T_WECHAT_REGIST_1208
    195. VALID    IDX_CONTACT_COMB               CONTACT_COMB
    196. VALID    GRP_CUSTOMER_HIS_IDX1          GRP_CUSTOMER_HISTROY
    197. VALID    GRP_CUSTOMER_HIS_IDX2          GRP_CUSTOMER_HISTROY
    198. VALID    PK_GRP_CUSTOMER_EXCEP          GRP_CUSTOMER_EXCEP
    199. VALID    GRP_CUSTOMER_EXCEP_IDX1        GRP_CUSTOMER_EXCEP
    200. VALID    TMP_IDX_STD_CONTACT_CNTRID     TEMP_STD_CONTRACT_DUBIOUS
    201. VALID    TMP_IDX_STD_CONTACT_CNTRNO     TEMP_STD_CONTRACT_DUBIOUS
    202. VALID    POL_ATTRIB_CBPS_CODE           POL_ATTRIB
    203. VALID    TEST1                          POL_ATTRIB
    204. VALID    GRP_CUSTOMER_IDX1              GRP_CUSTOMER
    205. VALID    PK_GRP_CUSTOMER                GRP_CUSTOMER
    206. VALID    GRP_CUSTOMER_IDX2              GRP_CUSTOMER
    207. VALID    TEST2                          BRANCH_DEF
    208. VALID    SYS_C0022986                   RETURNMESSAGE
    209. VALID    PK_REMOTESERVICE               REMOTESERVICE
    210. VALID    GRP_CNTR_HLDR_IDX1             GRP_CNTR_HLDR
    211. VALID    GRP_CNTR_HLDR_IDX2             GRP_CNTR_HLDR
    212. VALID    IDX_STD_CONTRACT_INFORCE       STD_CONTRACT
    213. VALID    IDX_STD_CONTACT_CNTRNO         STD_CONTRACT
    214. VALID    IDX_STD_CONTACT_CNTRID         STD_CONTRACT
    215. VALID    IDX_STD_CONTACT_APPLNO         STD_CONTRACT
    216. VALID    IDX_STD_SGID                   STD_CONTRACT
    217. VALID    STAT_TABLE                     STAT_TABLE
    218. VALID    SYS_IL0011725993C00026$$       STAT_TABLE
    219. VALID    STAT_INSURED_20151113          STAT_INSURED_20151113
    220. VALID    SYS_IL0013384187C00026$$       STAT_INSURED_20151113
    221. VALID    STAT_INSURED_20151023          STAT_INSURED_20151023
    222. VALID    SYS_IL0013055796C00026$$       STAT_INSURED_20151023
    223. VALID    INDEX_SPLITTOAUDIT_PC          SPLITTOAUDIT
    224. VALID    INDEX_SPLITTOAUDIT_P           SPLITTOAUDIT
    225. VALID    INDEX_SPLITTOAUDIT_FP          SPLITTOAUDIT
    226. VALID    PK_SESSIONINFO                 SESSIONINFO
    227. VALID    PK_SERVICEENGINE_SERVER        SERVICEENGINE_SERVER
    228. VALID    PK_SERVICEENGINE_CLIENT        SERVICEENGINE_CLIENT
    229. VALID    PK_SERVICEENGINE               SERVICEENGINE
    230. VALID    PK_RM_DICTIONA2                RM_DICTIONARYTYPE
    231. VALID    IDXU_TYPEKEYWORD               RM_DICTIONARYTYPE
    232. VALID    PK_RM_DICTIONAR                RM_DICTIONARY
    233. VALID    IDXU_TYPE_KEY                  RM_DICTIONARY
    234. VALID    I_T_PSN_CUSTOMER_V8_610000     T_PSN_CUSTOMER_V8_610000
    235. VALID    INDEX_T_CUST_INFO_1512         T_CUST_INFO_1512
    236. VALID    IDX_PARTY_REL_PARTYID          PARTY_RELATION_E
    237. N/A      PARTY_RELATION_IND_MAP         PARTY_RELATION_E
    238. VALID    PARTY_RELATION_IND2            PARTY_RELATION
    239. VALID    PARTY_RELATION_IND1            PARTY_RELATION
    240. VALID    IDX_POLINFO_CNTRID             POLINFO
    241. VALID    IDX_POLINFO_UPDDATE            POLINFO
    242. VALID    IDX_POLINFO_CGID               POLINFO
    243. VALID    PK_TASKTRACE                   TASKTRACE
    244. VALID    PK_TASKSTAT                    TASKSTAT
    245. VALID    PK_TASKINFO                    TASKINFO
    246. VALID    PK_PHONEINFO                   PHONEINFO
    247. VALID    IDX_CONTACTTEXT                CONTACT_LIST
    248. VALID    IDX_CUSTID                     CONTACT_LIST
    249. N/A      IDX_CONTACTLIST_CUSTID         CONTACT_LIST
    250. VALID    INDEX_PARTYRELATION2_PC        PARTYRELATION2
    251. VALID    PSN_CUSTOMER_HIS_IDX1          PSN_CUSTOMER_HISTROY
    252. VALID    PSN_CUSTOMER_HIS_IDX2          PSN_CUSTOMER_HISTROY
    253. VALID    IDX_ZB_031901                  PSN_CUSTOMER_DELETED
    254. VALID    IDX_PSN_CUSTOMER_DEL_IDX1      PSN_CUSTOMER_DEL
    255. VALID    IDX_PSN_CUSTOMER_DEL_IDX2      PSN_CUSTOMER_DEL
    256. VALID    IDX_PSN_CNTR_CNTRID            PSN_CNTR_HOLDER
    257. VALID    IDX_PSN_CNTR_HOLDERNO          PSN_CNTR_HOLDER
    258. VALID    PK_CNTRHOLDERINFO              CNTRHOLDERINFO
    259. VALID    PK_PRODUCT                     PRODUCT
    260. VALID    PK_CANCELCITIZENINFO           CANCELCITIZENINFO
    261. VALID    AA                             COMBINED_CNTR
    262. VALID    COMBINED_CNTR_IDX1             COMBINED_CNTR
    263. VALID    COMBINED_CNTR_IDX2             COMBINED_CNTR
    264. VALID    CODEMANAGE_CODECODE            CODEMANAGE
    265. VALID    CNTR_CGID_IDX2                 CNTR_CG_ID
    266. N/A      CNTR_ID_IDX1                   CNTR_CG_ID

    查看归并耗时的sql脚本:
    1. SELECT round(ROUND(TO_NUMBER(to_date(aaaa.run_endtime, 'yyyy-mm-dd hh24:mi:ss') - to_date(aaaa.run_begintime, 'yyyy-mm-dd hh24:mi:ss')) * 24 * 60 * 60) / 60, 2),
    2. 	aaaa.run_begintime,
    3. 	aaaa.run_endtime,
    4. 	aaaa.wsid,
    5. 	bbbb.wsname
    6. FROM cmds.cy_schplan_log aaaa,
    7. 	cmds.cy_schplan bbbb
    8. WHERE to_date(aaaa.run_begintime, 'yyyy-mm-dd hh24:mi:ss') >= to_date('2017-02-21 00:00:00', 'yyyy-mm-dd hh24:mi:ss')
    9. 	AND bbbb.wsid = aaaa.wsid
    10. 	AND aaaa.wsid IN ('WS00000865')
    11. ORDER BY aaaa.run_begintime ASC;

    查看中间库27.3的抽取情况
    查看索引情况
    1. STATUS   INDEX_NAME                     TABLE_NAME                     OWNER
    2. -------- ------------------------------ ------------------------------ ------------------------------
    3. N/A      IDX_V8_CONTACT_LST_FLAG        CONTACT_LST                    INCRCBPS8
    4. N/A      INX2                           CONTACT_CLSLIST_TEST           INCRCBPS8
    5. N/A      IDX_V8_CONTACT_CLSLIST_FLAG    CONTACT_CLSLIST                INCRCBPS8
    6. N/A      IDX_CONTACT_CLSLIST            CONTACT_CLSLIST                INCRCBPS8
    7. N/A      IDX_STD_CONTRACT               STD_CONTRACT                   INCRCBPS8
    8. N/A      IDX_V8_STD_CONTRACT_FLAG       STD_CONTRACT                   INCRCBPS8
    9. N/A      INDEX_GRP_CUSTOMER_COUNT_SEQ   GRP_CUSTOMER                   INCRCBPS8
    10. N/A      INDEX_GRP_CUSTOMER_FLAG        GRP_CUSTOMER                   INCRCBPS8
    11. N/A      IDX_V8_INSURED_FLAG            INSURED                        INCRCBPS8
    12. N/A      INDEX_HAVE_FLAG_APPL_STATE     APPL_STATE                     INCRCBPS8
    13. N/A      INDEX_HAVE_FLAG_APPL_INSURED   APPL_INSURED                   INCRCBPS8
    14. N/A      IDX_V8_BENEFICIARY_FLAG        BENEFICIARY                    INCRCBPS8
    15. N/A      IDX_V8_PSN_CUSTOMER_FLAG       PSN_CUSTOMER                   INCRCBPS8
    16. N/A      IDX_BRANCH_TRANS               PSN_CNTR_HOLDER                INCRCBPS8
    17. N/A      IDX_V8_PSN_CNTR_HOLDER_FLAG    PSN_CNTR_HOLDER                INCRCBPS8
    18. N/A      INDEX_HAVE_FLAG_INSUR_APPL     INSUR_APPL                     INCRCBPS8
    19. N/A      IDX_V8_CUSTOMER_FLAG           CUSTOMER                       INCRCBPS8
    20. N/A      IDX_V8_SVR_GROUP_FLAG          SVR_GROUP                      INCRCBPS8
    21. N/A      INDEX_HAVE_FLAG_APPL_BNFR      APPL_BENEFICIARY               INCRCBPS8
    22. N/A      IDX_PSN_CNTR_HLDR              PSN_CNTR_HLDR                  INCRSLBPS
    23. N/A      IDX_STD_CONTRACT               STD_CONTRACT                   INCRSLBPS
    24. N/A      IDX_PSN_CUSTOMER               PSN_CUSTOMER                   INCRSLBPS
    25. N/A      IDX_CONTACT_CLSLIST            CONTACT_CLSLIST                INCRSLBPS
    26. N/A      IDX_CUSTOMER                   CUSTOMER                       INCRSLBPS
    27. N/A      IDX_CG_INSURED                 CG_INSURED                     INCRSLBPS
    28. N/A      IDX_T1PRD                      T1PRD                          INCRUBPS
    29. N/A      IDX_T1APL                      T1APL                          INCRUBPS
    30. N/A      IDX_T1BNF                      T1BNF                          INCRUBPS
    31. N/A      IDX_T1RECVACCT                 T1RECVACCT                     INCRUBPS
    32. N/A      IDX_T1PLCBASE                  T1PLCBASE                      INCRUBPS
    33. N/A      IDX_T1ISD                      T1ISD                          INCRUBPS
    34. N/A      IDX_T4CUSTBASE                 T4CUSTBASE                     INCRUBPS
    35. N/A      IDX_T_PLCAPL                   T_PLCAPL                       INCRGAPS
    36. N/A      IDX_T_CUSTOMER                 T_CUSTOMER                     INCRGAPS
    37. N/A      IDX_T_SUBPLCISD                T_SUBPLCISD                    INCRGAPS
    38. N/A      IDX_T_SUBPLCBANK               T_SUBPLCBANK                   INCRGAPS
    39. N/A      IDX_T_PLCBASE                  T_PLCBASE                      INCRGAPS
    40. N/A      IDX_T_SUBPLCBNF                T_SUBPLCBNF                    INCRGAPS
    41. N/A      IDX_T_SUBPLCBASE               T_SUBPLCBASE                   INCRGAPS
    42. N/A      IDX_T_CUSTOMER                 T_CUSTOMER                     INCRTKPS
    43. N/A      IDX_T_SUBPLCISD                T_SUBPLCISD                    INCRTKPS
    44. N/A      IDX_T_PLCBASE                  T_PLCBASE                      INCRTKPS
    45. N/A      IDX_T_PLCAPL                   T_PLCAPL                       INCRTKPS
    46. N/A      IDX_T_SUBPLCBNF                T_SUBPLCBNF                    INCRTKPS
    47. N/A      IDX_T_SUBPLCBASE               T_SUBPLCBASE                   INCRTKPS
    48. N/A      IDX_T_SUBPLCBANK               T_SUBPLCBANK                   INCRTKPS
    50. 46 rows selected.


    下面是短险的一些分区表索引情况
    1. SQL>  select status,index_name from user_ind_partitions;
    3. STATUS   INDEX_NAME
    4. -------- ------------------------------
    5. USABLE   IDX_STD_CONTRACT
    6. USABLE   IDX_STD_CONTRACT
    7. USABLE   IDX_STD_CONTRACT
    8. USABLE   IDX_PSN_CUSTOMER
    9. USABLE   IDX_PSN_CUSTOMER
    10. USABLE   IDX_PSN_CUSTOMER
    11. USABLE   IDX_PSN_CNTR_HLDR
    12. USABLE   IDX_PSN_CNTR_HLDR
    13. USABLE   IDX_PSN_CNTR_HLDR
    14. USABLE   IDX_CUSTOMER
    15. USABLE   IDX_CUSTOMER
    16. USABLE   IDX_CUSTOMER
    17. USABLE   IDX_CONTACT_CLSLIST
    18. USABLE   IDX_CONTACT_CLSLIST
    19. USABLE   IDX_CONTACT_CLSLIST
    20. USABLE   IDX_CG_INSURED
    21. USABLE   IDX_CG_INSURED
    22. USABLE   IDX_CG_INSURED

    下面是8版的：
    1. SQL> select status,index_name from user_ind_subpartitions;
    3. STATUS   INDEX_NAME
    4. -------- ------------------------------
    5. USABLE   INX2
    6. USABLE   INX2
    7. USABLE   INX2
    8. USABLE   INX2
    9. USABLE   INX2
    10. USABLE   INX2
    11. USABLE   IDX_V8_BENEFICIARY_FLAG
    12. USABLE   IDX_V8_BENEFICIARY_FLAG
    13. USABLE   IDX_V8_BENEFICIARY_FLAG

    从结果上，分区表和非分区表上面的索引状态都是正常的。

     
    继续查看目的端库的情况

    awr报告，增加了sql的数量

    第一节点取了前100个，第二节点取了前50个，都没有看到p_cust_merg_incr_new_n相关的存储过程
       
    其中于到sql语句数量有关的参数是top_n_sql、top_n_sql_max、top_sql_pct，如果我们要在生成的AWR报告里包含50条语句，那么可以先执行
    exec DBMS_WORKLOAD_REPOSITORY.AWR_SET_REPORT_THRESHOLDS(top_n_sql=>100)，然后再使用@?/rdbms/admin/awrrpt生成报告，如此报告里便能看到top 50的SQL了，记住DBMS_WORKLOAD_REPOSITORY.AWR_SET_REPORT_THRESHOLDS的执行结果仅在session级别生效。

    2017/2/23 星期四 10:40:44

    今天检查中间库的抽取情况，将awr报告sql数量调到100个
    在耗时的排行里面，看到主要sql如下：

    第一个sql
    1. SELECT ROWID, "CUST_ID",
    2.               "CONTACT_SEQ",
    3.               "CONTACT_TYPE",
    4.               "PRIM_CONTACT_WAY",
    5.               "FROM_BRANCH",
    6.               "COMMIT_CSN",
    7.               "OP_SEQ",
    8.               "LAST_OP_FLAG",
    9.               "HAVE_FLAG"
    10. FROM "CONTACT_LST" "B"
    11. WHERE "HAVE_FLAG"='0'
    12.   AND "FROM_BRANCH"='120000'

    第二个sql
    1. SELECT "CNTR_ID",
    2.        "BANK_CODE",
    3.        "BANK_ACC_NO",
    4.        "ACC_CUST_NAME",
    5.        "FROM_BRANCH",
    6.        "COMMIT_CSN",
    7.        "OP_SEQ",
    8.        "LAST_OP_FLAG",
    9.        "ORA_ROWSCN"
    10. FROM "STD_CONTRACT" "B"
    11. WHERE "FROM_BRANCH"='440000'
    12.   AND "ORA_ROWSCN">=14582484242296
    13.   AND "ORA_ROWSCN"<=14582485963333


    通过sql id确认第一个sql的执行者是incrslbps，并且经过查询发现
    1. SQL>  select index_name from user_indexes where table_name ='CONTACT_LST';
    3. no rows selected

    下面梳理短险用户下面所有表的索引情况：

    1. SQL> select a.index_name,b.table_name,a.status from user_indexes a,user_tables b where a.table_name=b.table_name order by b.table_name; 
    3. INDEX_NAME                     TABLE_NAME                     STATUS
    4. ------------------------------ ------------------------------ --------
    5. INDEX_HAVE_FLAG_APPL_BNFR      APPL_BENEFICIARY               VALID
    6. INDEX_HAVE_FLAG_APPL_INSURED   APPL_INSURED                   VALID
    7. INDEX_HAVE_FLAG_APPL_STATE     APPL_STATE                     VALID
    8. IDX_CG_INSURED                 CG_INSURED                     N/A
    9. IDX_CONTACT_CLSLIST            CONTACT_CLSLIST                N/A
    10. IDX_CUSTOMER                   CUSTOMER                       N/A
    11. INDEX_HAVE_FLAG_INSUR_APPL     INSUR_APPL                     VALID
    12. IDX_PSN_CNTR_HLDR              PSN_CNTR_HLDR                  N/A
    13. IDX_PSN_CUSTOMER               PSN_CUSTOMER                   N/A
    14. STD_CONTRACT_IND1              STD_CONTRACT                   VALID
    15. IDX_STD_CONTRACT               STD_CONTRACT                   N/A



    1. create index CONTACT_LST_IND1 on CONTACT_LST(HAVE_FLAG,FROM_BRANCH) tablespace CMDSEXIDXTBS parallel 32;
alter index CONTACT_LST_IND1 noparallel;

    3. SQL> select index_name from user_indexes where table_name ='CONTACT_LST';
    5. INDEX_NAME
    6. ------------------------------
    7. CONTACT_LST_IND1
    给CONTACT_LST表添加索引，完成之后的执行计划对比

    1. ---------------------------------------------------------------------------------------------------
    2. | Id  | Operation           | Name        | Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
    3. ---------------------------------------------------------------------------------------------------
    4. |   0 | SELECT STATEMENT    |             |     8 |   576 | 32441   (3)| 00:06:30 |       |       |
    5. |   1 |  PARTITION RANGE ALL|             |     8 |   576 | 32441   (3)| 00:06:30 |     1 |1048575|
    6. |*  2 |   TABLE ACCESS FULL | CONTACT_LST |     8 |   576 | 32441   (3)| 00:06:30 |     1 |1048575|
    7. ---------------------------------------------------------------------------------------------------
    1. -----------------------------------------------------------------------------------------------------------------------
    2. | Id  | Operation                          | Name             | Rows  | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
    3. -----------------------------------------------------------------------------------------------------------------------
    4. |   0 | SELECT STATEMENT                   |                  |     8 |   576 |     5   (0)| 00:00:01 |       |       |
    5. |   1 |  TABLE ACCESS BY GLOBAL INDEX ROWID| CONTACT_LST      |     8 |   576 |     5   (0)| 00:00:01 | ROWID | ROWID |
    6. |*  2 |   INDEX RANGE SCAN                 | CONTACT_LST_IND1 |     8 |       |     4   (0)| 00:00:01 |       |       |
    7. -----------------------------------------------------------------------------------------------------------------------

    2017/2/24 星期五 20:42:09

    今天对日志表进行了归档和重建，删除了不必要的索引
    1. select sess.sid, 
    2.        sess.serial#, 
    3.        lo.oracle_username, 
    4.        lo.os_user_name, 
    5.        ao.object_name, 
    6.        lo.locked_mode 
    7.   from v$locked_object lo, dba_objects ao, v$session sess, v$process p 
    8. where ao.object_id = lo.object_id 
    9.    and lo.session_id = sess.sid and ao.object_name like 'CY_SCHTASK%';
    10.    
    11.    
    12. SELECT distinct(object_name)
    13. 	,STATISTIC_NAME
    14. 	,value
    15. FROM v$segment_statistics
    16. WHERE STATISTIC_NAME = 'row lock waits'
    17. ORDER BY 1;
    21. CREATE TABLE "CMDS"."CY_SCHTASK_ITEM_LOG"
    22.    (    "TASKID" VARCHAR2(32),
    23.         "TASKNO" VARCHAR2(32),
    24.         "STARTDT" VARCHAR2(20),
    25.         "ELAPSEDSECS" NUMBER,
    26.         "EXSTATE" NUMBER,
    27.         "ERRMSG" VARCHAR2(1024),
    28.         "EXNO" VARCHAR2(64),
    29.         "EXSUBNO" VARCHAR2(64),
    30.         "WSID" VARCHAR2(32),
    31.         "BRANCHCODE" VARCHAR2(32)
    32.    ) SEGMENT CREATION IMMEDIATE
    33.   PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255
    34.  NOCOMPRESS LOGGING
    35.   STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
    36.   PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
    37.   BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
    38.   TABLESPACE "CUST"
    40.   
    41.   
    42.   
    43. ora ddl cmds index CY_SCHTASK_ITEM_LOG_IDX1
    44. ora ddl cmds index CY_SCHTASK_ITEM_LOG_IDX2
    45. ora ddl cmds index CY_SCHTASK_ITEM_LOG_IDX3
    46. ora ddl cmds index CY_SCHTASK_ITEM_LOG_IDX4
    50. CREATE INDEX "CMDS"."CY_SCHTASK_ITEM_LOG_IDX1" ON "CMDS"."CY_SCHTASK_ITEM_LOG"("TASKNO")
    51. CREATE INDEX "CMDS"."CY_SCHTASK_ITEM_LOG_IDX2" ON "CMDS"."CY_SCHTASK_ITEM_LOG"("BRANCHCODE")
    52. CREATE INDEX "CMDS"."CY_SCHTASK_ITEM_LOG_IDX3" ON "CMDS"."CY_SCHTASK_ITEM_LOG"("TASKID", "EXSTATE")
    53. CREATE INDEX "CMDS"."CY_SCHTASK_ITEM_LOG_IDX4" ON "CMDS"."CY_SCHTASK_ITEM_LOG"("TASKID", "TASKNO", "EXNO", "EXSUBNO");
    56. explain plan for
    57. UPDATE cy_schtask_item_log
    58. SET taskid = 'TA00000321'
    59. 	,taskno = '141'
    60. 	,exno = 'SH17337715'
    61. 	,exsubno = '170223162239632.009160.0001.000000'
    62. 	,wsid = 'WS00002062'
    63. 	,exstate = '1'
    64. 	,elapsedsecs = '0.89'
    65. WHERE taskid = 'TA00000321'
    66. 	AND taskno = '141'
    67. 	AND exno = 'SH17337715'
    68. 	AND exsubno = '170223162239632.009160.0001.000000';
    69. select * from table(dbms_xplan.display);	
    72. create index "CMDS"."CY_SCHTASK_ITEM_LOG_IDX5" ON "CMDS"."CY_SCHTASK_ITEM_LOG"("EXSUBNO") parallel 32;
    73. alter index CY_SCHTASK_ITEM_LOG_IDX5 noparallel;








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    • 原文地址：https://www.cnblogs.com/wangrongxin/p/6653972.html
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