查询花费了很多时间



我们的系统非常大,在模式中有大约 100+ 个表。有一个业务需求,我们决定在存储过程中处理它。在我们的应用程序中,我们也有java,但我们选择使用存储过程。为了满足需求,创建了3个功能。这些函数是 SQL 查询的一部分,触发这些查询以获取计数和显示记录。现在我们在连接中设置了 SQL 超时,设置为 60 秒。当我们对 40K 的记录运行此查询时,操作超时,我们不会得到任何结果。我在这里粘贴了所有这 3 个函数的实际实现,在它们下面是查询谁使用了所有这些创建的函数。

在下面的查询中,以粗体字母标记了函数调用。

我正在查看您的专家建议,通过这些建议,我可以调整此实现以处理 100K 的数据。我们有甲骨文11gR1。 甚至这个实现也是从 Web 在 Ajax 调用中访问。

如果您需要其他任何东西,请告诉我。

CREATE INDEX IDX_SNM_ENTITY_NAME
  ON SML_NOTIFICATION_MAIN(ENTITY_NAME)
  TABLESPACE CM_INDEX;
CREATE OR REPLACE FUNCTION is_Users_In_Same_Business_Unit
    (UserMasterId varchar2,
     CtoCode varchar2)       
  RETURN boolean
IS 
  v_count number(4);       
BEGIN
  if CtoCode is not null then       
    select count(*) into v_count
      from sml_user u,
           sml_team_member tm,
           sml_usrprof_cto_map ctomap,
           code_value cv
      where u.status = 'ACTIVE'
        and u.master_id is null
        and u.id = tm.user_id
        and tm.profile_id = ctomap.user_profile_id
        and ctomap.cto_code_id = cv.id
        and cv.code_value = CtoCode
        and tm.team_id in
              (select child_id
                 from vw_team_relation_master a
                 connect by prior a.child_id = a.parent_id
                 start with a.child_id =
                   (select child_id
                      from vw_team_relation_master c
                      where parent_id is null
                      start with c.child_id =
                        (select t.id
                           from sml_team t,
                                sml_team_member tm
                           where t.id = tm.team_id
                             and t.status = 'ACTIVE'
                             and t.master_id is null
                             and tm.user_id = UserMasterId) 
                      connect by prior c.parent_id = c.child_id));
    if v_count is not null and v_count > 0 then
      return TRUE;
    else
      return FALSE;
    end if;       
  end if;        
  return FALSE;           
END;
CREATE OR REPLACE FUNCTION Can_User_Access_Customer(
      NotificationDesc            VARCHAR2,
      UserId                      VARCHAR2,
      NotificationType            VARCHAR2,
      UserRoleCode                VARCHAR2,
      UserMasterId                VARCHAR2,
      CtoCode                     VARCHAR2,
      SecCtoCode                  VARCHAR2,
      UserProfTempIdCommercialInd VARCHAR2,
      UserProfTempIdCorporateInd  VARCHAR2,
      UserProfTempStcfInd         VARCHAR2,
      UserProfTempIdGsamInd       VARCHAR2)
    RETURN BOOLEAN
IS
  -- function to test is user can access customer
  regSearchCount                number(2);
  in_same_unit                  boolean;
  count_v                       number(2);
BEGIN
  in_same_unit := is_Users_In_Same_Business_Unit(UserMasterId, CtoCode);
  -- Commercial    
  select count(*)
    into regSearchCount
    from dual
    where regexp_like (CtoCode,'200[3-9]|20[1-4][0-9]|2[1-6][0-6][0-9]|29[0-6][0-9]|300[1-9]|30[1-6][0-9]|3[1-9][0-6][0-9]');        
  IF regSearchCount > 0 then -- user is commercial
    -- check secondary cto code holder
    select count(*)
      into count_v
      from dual
      where SecCtoCode IN
        (SELECT DISTINCT code_value
           FROM sml_user,
                sml_team_member,
                sml_user_profile,
                sml_usrprof_cto_map,
                code_value
           WHERE sml_user.id = sml_team_member.user_id
             AND sml_team_member.profile_id = sml_user_profile.id
             AND sml_user_profile.id = sml_usrprof_cto_map.user_profile_id
             AND sml_usrprof_cto_map.cto_code_id = code_value.id
             AND sml_user.login_id = UserId);
    IF count_v is not null AND
       count_v > 0
    then
      return TRUE;
    END IF;
    IF NotificationType='Collateral' AND
       UserRoleCode is not null AND
       UserRoleCode='RLOC'
    then -- user is rloc
      RETURN TRUE;
    END IF;
    IF in_same_unit AND
       UserRoleCode is not null AND
       UserRoleCode IN ('RMTL','GRPHD','SECHD')
    then -- user belongs to GH, SH etc          
      RETURN TRUE;
    END IF;
  END IF;     
  -- corporate
  select count(*)
    into regSearchCount
    from dual
    where regexp_like (CtoCode,'1[0-9][0-6][0-9]');
  IF regSearchCount > 0 then
    IF in_same_unit and UserRoleCode is not null AND
       UserRoleCode='GRPHD' AND
       NotificationDesc!='0 days Due for expiry of Collateral'
     THEN -- user belongs to GH          
        RETURN TRUE;                    
    END IF;
    IF in_same_unit AND
       UserRoleCode is not null AND
       UserRoleCode='RMTL' AND
       NotificationDesc='0 days Due for expiry of Collateral'
    THEN
        RETURN TRUE;                    
    END IF;
  END IF;    
  -- STCF     
  select count(*)
    into regSearchCount
    from dual
    where regexp_like (CtoCode, '20[5-6][0-9]');
  IF regSearchCount > 0 then      
    IF in_same_unit AND
       UserRoleCode is not null AND
       UserRoleCode = 'RMTL'
    then
      RETURN TRUE;          
    END IF;
  END IF;    
  RETURN FALSE ;
END;
create or replace FUNCTION IS_NOTIFICATION_ACCESS_PASSED(
      NotificationDesc            VARCHAR2,
      UserId                      VARCHAR2,
      NotificationType            VARCHAR2,
      UserMasterId                VARCHAR2,
      UserRoleCode                VARCHAR2,
      CtoCode                     VARCHAR2,
      SecCtoCode                  VARCHAR2,
      UserProfTempIdCommercialInd VARCHAR2,
      UserProfTempIdCorporateInd  VARCHAR2,
      UserProfTempStcfInd         VARCHAR2,
      UserProfTempIdGsamInd       VARCHAR2)
    RETURN VARCHAR2 DETERMINISTIC
IS
  -- functions to test, is instance of notification viewable for the logged in user, on the basis of notification type
  -- and other user details etc, currently defined for only type 'Collateral' and 'Implementation Instruction'
  regSearchCount NUMBER(2);
  count_v NUMBER(2);       
BEGIN
  IF NotificationType = 'Implementation Instruction' THEN
    IF Can_User_Access_Customer(NotificationDesc,UserId,
                                NotificationType
                                UserRoleCode,UserMasterId
                                CtoCode,SecCtoCode,
                                UserProfTempIdCommercialInd,
                                UserProfTempIdCorporateInd,
                                UserProfTempStcfInd,
                                UserProfTempIdGsamInd)
    THEN
      IF UserRoleCode = 'LDU' THEN
        SELECT COUNT(*)
          INTO regSearchCount
          FROM dual
          WHERE regexp_like (CtoCode,'1[0-9][0-6][0-9]');
        IF regSearchCount >0 THEN
          RETURN 'TRUE';
        ELSE
          RETURN 'FALSE';
        END IF;
      ELSE
        RETURN 'TRUE';
      END IF;
    END IF;
  END IF;
  IF NotificationType = 'Collateral' THEN
    IF UserRoleCode   ='WLOC' THEN
      RETURN 'TRUE';
    END IF;
    -- check primary cto code holder
    select count(*)
      into count_v
      from dual
      where CtoCode IN
        (SELECT DISTINCT code_value
           FROM sml_user,
                sml_team_member,
                sml_user_profile,
                sml_usrprof_cto_map,
                code_value
           WHERE sml_user.id = sml_team_member.user_id
             AND sml_team_member.profile_id = sml_user_profile.id
             AND sml_user_profile.id = sml_usrprof_cto_map.user_profile_id
             AND sml_usrprof_cto_map.cto_code_id = code_value.id
             AND sml_user.login_id = UserId);
    IF count_v is not null and count_v > 0 then
      return 'TRUE';
    END IF;
    -- check all other conditions
    IF Can_User_Access_Customer(NotificationDesc,UserId,NotificationType,
                                UserRoleCode,UserMasterId,CtoCode,
                                SecCtoCode,UserProfTempIdCommercialInd,
                                UserProfTempIdCorporateInd,
                                UserProfTempStcfInd,
                                UserProfTempIdGsamInd) THEN
      RETURN 'TRUE';
    END IF;
  ELSE
    RETURN 'TRUE';
  END IF;
  RETURN 'FALSE';
END;

查询:

select *
  FROM SML_NOTIFICATION_MAIN notification
  where notification.DEPRECATED='N'  and
        (MAKER_ID = 'see_rm'  OR
         TO_CHAR(CTO_CODE) IN
           (SELECT DISTINCT code_value
              FROM sml_user, 
                   sml_team_member,
                   sml_user_profile,
                   sml_usrprof_cto_map,
                   code_value
              WHERE sml_user.id = sml_team_member.user_id AND
                    sml_team_member.profile_id = sml_user_profile.id AND
                    sml_user_profile.id = sml_usrprof_cto_map.user_profile_id AND
                    sml_usrprof_cto_map.cto_code_id = code_value.id AND
                    sml_user.login_id = 'see_rm' AND
                    Entity_Name != 'Collateral') OR
        TO_CHAR(SEC_CTO_CODE) IN
          (SELECT DISTINCT code_value
             FROM sml_user, 
                  sml_team_member,
                  sml_user_profile,
                  sml_usrprof_cto_map,
                  code_value 
             WHERE sml_user.id = sml_team_member.user_id AND 
                   sml_team_member.profile_id = sml_user_profile.id AND
                   sml_user_profile.id = sml_usrprof_cto_map.user_profile_id AND
                   sml_usrprof_cto_map.cto_code_id = code_value.id AND
                   Entity_Name != 'Collateral' AND
                   sml_user.login_id ='see_rm') OR
        ROLE_CODE in (select distinct CODE
                        from sml_user a,
                             code_value b
                        where a.role_id = b.id AND
                              login_id = 'see_rm') OR
        SUBSTR(ROLE_CODE, 1, 4) in (select distinct CODE
                                    from sml_user a,
                                         code_value b
                                    where a.role_id = b.id AND
                                          login_id = 'see_rm') OR
        SUBSTR(ROLE_CODE, 6, 4) IN (select distinct CODE
                                      from sml_user a,
                                           code_value b
                                      where ENTITY_NAME = 'Insurance' OR
                                            ENTITY_NAME = 'Collateral' AND
                                            a.role_id = b.id AND
                                            login_id = 'see_rm') OR
        SUBSTR(ROLE_CODE, 11, 2) IN (select distinct CODE
                                       from sml_user a,
                                            code_value b
                                       where a.role_id = b.id AND
                                             login_id = 'see_rm') OR 
        TEAM_LEAD in (select to_char(a.id)
                        from sml_user a
                        where Entity_Name != 'Collateral' AND
                              a.login_id = 'see_rm') OR
        RM_ID in (select to_char(a.id)
                    from sml_user a
                    where Entity_Name != 'Collateral' AND
                          ENTITY_NAME = 'PostApproval CP/Covnent' AND
                          DESCRIPTION != '30 days before due date' AND
                          a.login_id = 'see_rm') OR
        (Entity_Name != 'Collateral' AND
         RM_ID in (Select Rm_Id
                     From Vw_Sm_Rm_Team_Lead
                     Where Vw_Sm_Rm_Team_Lead.Rmtl_Id IN
                       (Select To_Char(A.Id)
                          From Sml_User A
                          Where A.Login_Id = 'see_rm'))) OR
        (Entity_Name = 'Enquiry' AND
         RM_ID IN (SELECT BCA_ID
                     FROM VW_SM_BCA_TEAM_LEAD
                     WHERE VW_SM_BCA_TEAM_LEAD.BCATL_ID IN
                       (SELECT TO_CHAR(A.Id)
                          FROM Sml_User A 
                          WHERE A.Login_Id = 'see_rm'))) OR
         GROUP_HEAD in (select to_char(a.id)
                          from sml_user a
                          where a.login_id = 'see_rm' AND
                                Entity_Name != 'Collateral') OR
        (Entity_name != 'Collateral' AND
         SECTOR_HEAD like ('%,'|| (select to_char(a.id) || ',' as ID
                                     from sml_user a
                                     where a.login_id = 'see_rm' AND
                                           status='ACTIVE' AND
                                           master_id is null) || '%')) OR
        (Entity_Name = 'Collateral' AND
         IS_NOTIFICATION_ACCESS_PASSED(DESCRIPTION,
                                       'see_rm',
                                       Entity_Name,
                                       '1176',
                                       'RM',
                                       TO_CHAR(CTO_CODE),
                                       TO_CHAR(SEC_CTO_CODE),
                                       'N','N','N','N') = 'TRUE') OR
        (RM_ID in (select rm_id
                     from VW_SM_RM_TEAM_LEAD
                     where rmtl_id IN (Select Distinct Su.Id As Rmtl_Id
                                         FROM sml_user su
                                         INNER JOIN sml_team_member MEMBER
                                           ON su.id=member.user_id
                                         Inner Join Sml_Team Team
                                           On Member.Team_Id=Team.Id AND
                                              Team.Team_Role_Id =
                                                (SELECT ID
                                                   FROM code_value
                                                   WHERE code='RMTL' AND
                                                         status='ACTIVE' AND
                                                         master_id IS NOT NULL AND
                                                         code_set_value_id =
                                                           (SELECT ID
                                                              FROM code_set
                                                              WHERE CODE = 'TEAM_ROLE' AND
                                                                    master_id IS NOT NULL))
                                         Inner Join Sml_Team_Child PARENT
                                           On Team.Id=Parent.Child_Id
                                         INNER JOIN sml_team_member grop
                                           ON grop.team_id=parent.parent_id
                                         INNER JOIN sml_team st
                                           ON st.id=grop.team_id
                                         Where Su.Status = 'ACTIVE' AND
                                               St.Status='ACTIVE' AND
                                               grop.user_id =
                                                 (select to_char(a.id)
                                                    from sml_user a
                                                    where a.master_id is null AND
                                                          a.status='ACTIVE' AND
                                                          a.login_id = 'see_rm'))) AND
         Entity_Name != 'Collateral' AND
         ((Entity_Name = 'Implementation Instruction' AND
           IS_NOTIFICATION_ACCESS_PASSED(DESCRIPTION,
                                         'see_rm',
                                         Entity_Name,
                                         '1176',
                                         'RM',
                                         TO_CHAR(CTO_CODE),
                                         TO_CHAR(SEC_CTO_CODE),
                                         'N','N','N','N') = 'TRUE') OR 
          (Entity_Name = 'Post Disbursement') OR
          (ENTITY_NAME = 'PostApproval CP/Covnent' AND
           DESCRIPTION = '7 days before due date') OR
          (ENTITY_NAME = 'Facility' AND
           DESCRIPTION != '2 Days Due for expiry of Facility') OR
          (ENTITY_NAME = 'Insurance') OR
          (ENTITY_NAME = 'Call Report' AND
           DESCRIPTION = '2 days before exceeded by 11 months'))))
****************************************Execution plan of above query *****************
Execution Plan
----------------------------------------------------------
   0       SELECT STATEMENT Optimizer Mode=ALL_ROWS (Cost=294 Card=17 K Bytes=3 M)
   1    0    FILTER
   2    1      TABLE ACCESS FULL UOBCM.SML_NOTIFICATION_MAIN (Cost=294 Card=37 K Bytes=6 M)
   3    1      FILTER
   4    3        NESTED LOOPS
   5    4          NESTED LOOPS (Cost=47 Card=1 Bytes=80)
   6    5            HASH JOIN (Cost=23 Card=24 Bytes=1 K)
   7    6              NESTED LOOPS (Cost=8 Card=12 Bytes=432)
   8    7                HASH JOIN (Cost=8 Card=12 Bytes=384)
   9    8                  TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=4 Card=3 Bytes=72)
  10    9                    INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  11    8                  INDEX FAST FULL SCAN UOBCM.IDX_TMBR_TMUSERPF (Cost=3 Card=1 K Bytes=8 K)
  12    7                INDEX UNIQUE SCAN UOBCM.PK_SML_USER_PROFILE (Cost=0 Card=1 Bytes=4)
  13    6              VIEW UOBCM.index$_join$_005 (Cost=15 Card=1 K Bytes=14 K)
  14   13                HASH JOIN
  15   14                  INDEX FAST FULL SCAN UOBCM.IDX_USRPROFCTO_USRPROF (Cost=6 Card=1 K Bytes=14 K)
  16   14                  INDEX FAST FULL SCAN UOBCM.IDX_USRPROFCTO_CTO (Cost=11 Card=1 K Bytes=14 K)
  17    5            INDEX UNIQUE SCAN UOBCM.PK_CODE_VALUE (Cost=0 Card=1)
  18    4          TABLE ACCESS BY INDEX ROWID UOBCM.CODE_VALUE (Cost=1 Card=1 Bytes=36)
  19    1      FILTER
  20   19        NESTED LOOPS
  21   20          NESTED LOOPS (Cost=47 Card=1 Bytes=80)
  22   21            HASH JOIN (Cost=23 Card=24 Bytes=1 K)
  23   22              NESTED LOOPS (Cost=8 Card=12 Bytes=432)
  24   23                HASH JOIN (Cost=8 Card=12 Bytes=384)
  25   24                  TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=4 Card=3 Bytes=72)
  26   25                    INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  27   24                  INDEX FAST FULL SCAN UOBCM.IDX_TMBR_TMUSERPF (Cost=3 Card=1 K Bytes=8 K)
  28   23                INDEX UNIQUE SCAN UOBCM.PK_SML_USER_PROFILE (Cost=0 Card=1 Bytes=4)
  29   22              VIEW UOBCM.index$_join$_010 (Cost=15 Card=1 K Bytes=14 K)
  30   29                HASH JOIN
  31   30                  INDEX FAST FULL SCAN UOBCM.IDX_USRPROFCTO_USRPROF (Cost=6 Card=1 K Bytes=14 K)
  32   30                  INDEX FAST FULL SCAN UOBCM.IDX_USRPROFCTO_CTO (Cost=11 Card=1 K Bytes=14 K)
  33   21            INDEX UNIQUE SCAN UOBCM.PK_CODE_VALUE (Cost=0 Card=1)
  34   20          TABLE ACCESS BY INDEX ROWID UOBCM.CODE_VALUE (Cost=1 Card=1 Bytes=36)
  35    1      NESTED LOOPS
  36   35        NESTED LOOPS (Cost=5 Card=1 Bytes=39)
  37   36          TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=3 Card=3 Bytes=75)
  38   37            INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  39   36          INDEX UNIQUE SCAN UOBCM.PK_CODE_VALUE (Cost=0 Card=1)
  40   35        TABLE ACCESS BY INDEX ROWID UOBCM.CODE_VALUE (Cost=1 Card=1 Bytes=14)
  41    1      NESTED LOOPS
  42   41        NESTED LOOPS (Cost=5 Card=1 Bytes=39)
  43   42          TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=3 Card=3 Bytes=75)
  44   43            INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  45   42          INDEX UNIQUE SCAN UOBCM.PK_CODE_VALUE (Cost=0 Card=1)
  46   41        TABLE ACCESS BY INDEX ROWID UOBCM.CODE_VALUE (Cost=1 Card=1 Bytes=14)
  47    1      NESTED LOOPS (Cost=9 Card=3 Bytes=117)
  48   47        TABLE ACCESS BY INDEX ROWID UOBCM.CODE_VALUE (Cost=4 Card=4 Bytes=56)
  49   48          INDEX RANGE SCAN UOBCM.IDX_CV_CDSTATUSID (Cost=2 Card=4)
  50   47        TABLE ACCESS FULL UOBCM.SML_USER (Cost=5 Card=2 Bytes=50)
  51    1      NESTED LOOPS
  52   51        NESTED LOOPS (Cost=5 Card=1 Bytes=39)
  53   52          TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=3 Card=3 Bytes=75)
  54   53            INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  55   52          INDEX UNIQUE SCAN UOBCM.PK_CODE_VALUE (Cost=0 Card=1)
  56   51        TABLE ACCESS BY INDEX ROWID UOBCM.CODE_VALUE (Cost=1 Card=1 Bytes=14)
  57    1      FILTER
  58   57        TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=4 Card=1 Bytes=24)
  59   58          INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  60    1      FILTER
  61   60        TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=4 Card=1 Bytes=24)
  62   61          INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  63    1      FILTER
  64   63        TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=4 Card=1 Bytes=24)
  65   64          INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  66    1      NESTED LOOPS
  67   66        NESTED LOOPS (Cost=28 Card=1 Bytes=95)
  68   67          HASH JOIN (Cost=27 Card=1 Bytes=76)
  69   68            NESTED LOOPS
  70   69              NESTED LOOPS (Cost=24 Card=7 Bytes=476)
  71   70                NESTED LOOPS (Cost=16 Card=8 Bytes=472)
  72   71                  HASH JOIN (Cost=10 Card=12 Bytes=612)
  73   72                    NESTED LOOPS (Cost=6 Card=3 Bytes=129)
  74   73                      TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=2 Card=1 Bytes=19)
  75   74                        INDEX UNIQUE SCAN UOBCM.PK_SML_USER (Cost=1 Card=1)
  76   73                      TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=4 Card=3 Bytes=72)
  77   76                        INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  78   72                    INDEX FAST FULL SCAN UOBCM.IDX_TMBR_TMUSERPF (Cost=3 Card=1 K Bytes=8 K)
  79   71                  TABLE ACCESS BY INDEX ROWID UOBCM.SML_TEAM_CHILD (Cost=1 Card=1 Bytes=8)
  80   79                    INDEX RANGE SCAN UOBCM.IDX_TCHILD_TEAM (Cost=0 Card=1)
  81   70                INDEX UNIQUE SCAN UOBCM.PK_SML_TEAM (Cost=0 Card=1)
  82   69              TABLE ACCESS BY INDEX ROWID UOBCM.SML_TEAM (Cost=1 Card=1 Bytes=9)
  83   82                TABLE ACCESS BY INDEX ROWID UOBCM.CODE_VALUE (Cost=3 Card=1 Bytes=35)
  84   83                  INDEX RANGE SCAN UOBCM.IDX_CV_CS (Cost=1 Card=19)
  85   84                    TABLE ACCESS FULL UOBCM.CODE_SET (Cost=18 Card=1 Bytes=38)
  86   68            INDEX FAST FULL SCAN UOBCM.IDX_TMBR_TMUSERPF (Cost=3 Card=4 Bytes=32)
  87   67          INDEX UNIQUE SCAN UOBCM.PK_SML_TEAM (Cost=0 Card=1)
  88   66        TABLE ACCESS BY INDEX ROWID UOBCM.SML_TEAM (Cost=1 Card=1 Bytes=19)
  89    1      TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=4 Card=1 Bytes=43)
  90   89        INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
  91    1      NESTED LOOPS
  92   91        NESTED LOOPS (Cost=31 Card=1 Bytes=142)
  93   92          NESTED LOOPS (Cost=30 Card=1 Bytes=123)
  94   93            NESTED LOOPS (Cost=29 Card=1 Bytes=104)
  95   94              NESTED LOOPS (Cost=26 Card=3 Bytes=288)
  96   95                NESTED LOOPS (Cost=22 Card=4 Bytes=348)
  97   96                  HASH JOIN (Cost=20 Card=5 Bytes=395)
  98   97                    NESTED LOOPS
  99   98                      NESTED LOOPS (Cost=16 Card=4 Bytes=284)
 100   99                        NESTED LOOPS (Cost=12 Card=4 Bytes=208)
 101  100                          NESTED LOOPS (Cost=10 Card=2 Bytes=88)
 102  101                            NESTED LOOPS (Cost=7 Card=3 Bytes=105)
 103  102                              NESTED LOOPS (Cost=5 Card=4 Bytes=108)
 104  103                                TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=2 Card=1 Bytes=19)
 105  104                                  INDEX UNIQUE SCAN UOBCM.PK_SML_USER (Cost=1 Card=1)
 106  103                                INDEX FAST FULL SCAN UOBCM.IDX_TMBR_TMUSERPF (Cost=3 Card=4 Bytes=32)
 107  106                                  TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=4 Card=1 Bytes=43)
 108  107                                    INDEX RANGE SCAN UOBCM.IDX_USR_LOGINID (Cost=1 Card=3)
 109  102                              TABLE ACCESS BY INDEX ROWID UOBCM.SML_TEAM_CHILD (Cost=1 Card=1 Bytes=8)
 110  109                                INDEX RANGE SCAN UOBCM.IDX_TCHILD_TEAM (Cost=0 Card=1)
 111  101                            TABLE ACCESS BY INDEX ROWID UOBCM.SML_TEAM (Cost=1 Card=1 Bytes=9)
 112  111                              INDEX UNIQUE SCAN UOBCM.PK_SML_TEAM (Cost=0 Card=1)
 113  111                              TABLE ACCESS BY INDEX ROWID UOBCM.CODE_VALUE (Cost=3 Card=1 Bytes=35)
 114  113                                INDEX RANGE SCAN UOBCM.IDX_CV_CS (Cost=1 Card=19)
 115  114                                  TABLE ACCESS FULL UOBCM.CODE_SET (Cost=18 Card=1 Bytes=38)
 116  100                          INDEX RANGE SCAN UOBCM.IDX_TMBR_TMUSERPF (Cost=1 Card=2 Bytes=16)
 117   99                        INDEX UNIQUE SCAN UOBCM.PK_SML_USER (Cost=0 Card=1)
 118   98                      TABLE ACCESS BY INDEX ROWID UOBCM.SML_USER (Cost=1 Card=1 Bytes=19)
 119   97                    INDEX FAST FULL SCAN UOBCM.IDX_TMBR_TMUSERPF (Cost=3 Card=1 K Bytes=8 K)
 120   96                  TABLE ACCESS BY INDEX ROWID UOBCM.SML_TEAM_CHILD (Cost=1 Card=1 Bytes=8)
 121  120                    INDEX RANGE SCAN UOBCM.IDX_TCHILD_TEAM (Cost=0 Card=1)
 122   95                TABLE ACCESS BY INDEX ROWID UOBCM.SML_TEAM (Cost=1 Card=1 Bytes=9)
 123  122                  INDEX UNIQUE SCAN UOBCM.PK_SML_TEAM (Cost=0 Card=1)
 124  122                  TABLE ACCESS BY INDEX ROWID UOBCM.CODE_VALUE (Cost=3 Card=1 Bytes=35)
 125  124                    INDEX RANGE SCAN UOBCM.IDX_CV_CS (Cost=1 Card=19)
 126  125                      TABLE ACCESS FULL UOBCM.CODE_SET (Cost=18 Card=1 Bytes=38)
 127   94              INDEX RANGE SCAN UOBCM.IDX_TMBR_TMUSERPF (Cost=1 Card=1 Bytes=8)
 128   93            TABLE ACCESS BY INDEX ROWID UOBCM.SML_TEAM (Cost=1 Card=1 Bytes=19)
 129  128              INDEX UNIQUE SCAN UOBCM.PK_SML_TEAM (Cost=0 Card=1)
 130   92          INDEX UNIQUE SCAN UOBCM.PK_SML_TEAM (Cost=0 Card=1)
 131   91        TABLE ACCESS BY INDEX ROWID UOBCM.SML_TEAM (Cost=1 Card=1 Bytes=19)
 132    1      NESTED LOOPS
 133  132        NESTED LOOPS (Cost=28 Card=1 Bytes=95)
 134  133          HASH JOIN (Cost=27 Card=1 Bytes=76)
 135  134            NESTED LOOPS
 136  135              NESTED LOOPS (Cost=24 Card=7 Bytes=476)
 137  136                NESTED LOOPS (

这是一个相当大的查询,有很多子查询,你需要对它做一个解释计划,然后开始削减"慢"位。从存储过程中提取逻辑并将其嵌入到查询中可能是查询。100,000 行并不多,您应该能够对此进行大量调整。

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