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    explain plan for 
    select count(*) from (SELECT 
                   20141001 AS data_date
                  ,NVL(T1.ACCT_NO, T2.ACCT_NO) AS acct_no
                  ,NVL(T1.ACCT_ORD, T2.ACCT_ORD) AS acct_ord
                  ,NVL(T1.ACCT_NO_PK, T2.ACCT_NO_PK) AS acct_no_pk
                  ,NVL(T1.ACCT_BAL, 0) AS acct_bal
                  ,NVL(T1.D_CMP_BAL, T2.D_CMP_BAL) AS d_cmp_bal
                  ,NVL(T1.M_CMP_BAL, T2.M_CMP_BAL) AS m_cmp_bal
                  ,NVL(T1.Y_CMP_BAL, T2.Y_CMP_BAL) AS y_cmp_bal
                  ,NVL(T1.FLAG, T2.FLAG) AS flag
                  ,NVL(T1.ACCT_FLAG, T2.ACCT_FLAG) AS acct_flag
                  ,NVL(T1.TERM, T2.TERM) AS term
                  ,NVL(T1.TERM_FLAG, T2.TERM_FLAG) AS term_flag
                  ,NVL(T1.CUR_CODE, T2.CUR_CODE) AS cur_code
                  ,NVL(T1.CUR_NAME, T2.CUR_NAME) AS cur_name
                  ,NVL(T1.SUB_CODE, T2.SUB_CODE) AS sub_code
                  ,NVL(T1.CUST_NO, T2.CUST_NO)  AS cust_no
                  ,NVL(T1.CUST_TYPE, T2.CUST_TYPE) AS cust_type
                  ,NVL(T1.CUST_NAME, T2.CUST_NAME) AS cust_name
                  ,NVL(T1.BANK_CORP_CODE, T2.BANK_CORP_CODE)  AS bank_corp_code
                  ,NVL(T1.BRAN_NAME, T2.BRAN_NAME) AS bran_name
                  ,NVL(T1.MGR_CODE, T2.MGR_CODE) AS mgr_code
                  ,NVL(T1.MGR_NAME, T2.MGR_NAME) AS mgr_name
                  ,NVL(T1.OPEN_DATE, T2.OPEN_DATE) AS open_date
                  ,NVL(T1.FIX_BAL, 0) AS fix_bal
                  ,NVL(T1.DIV_FIX_FLAG, T2.DIV_FIX_FLAG) AS div_fix_flag
                  ,NVL(T1.ADJUST_AMT, 0) AS adjust_amt
                  ,NVL(T1.ADJUST_AMT_AF, 0) AS adjust_amt_af
                  ,CASE
                     WHEN SUBSTR(20141001, -4) = '0101' THEN
                      NVL(T1.ADJUST_AMT_AF, 0)/360
                     ELSE
                      (NVL(T1.ADJUST_AMT_AF, 0) + NVL(T2.Y_ADD_AF, 0))/360
                      END AS y_avg_af
                  ,CASE
                     WHEN SUBSTR(20141001, -4) = '0101' THEN
                      NVL(T1.ADJUST_AMT_AF, 0)
                     ELSE
                      (NVL(T1.ADJUST_AMT_AF, 0) + NVL(T2.Y_ADD_AF, 0))
                   END AS Y_ADD_AF
                  ,NVL(T1.ACCT_INTR, 0) AS acct_intr
                  ,NVL(T1.SIM_PROFIT, 0) AS sim_profit
                  ,NVL(T1.SEPA_POR, T2.SEPA_POR) AS sepa_por
                  ,NVL(T1.PRI, T2.PRI) AS pri
                  ,NVL(T1.BRAN_CODE, T2.BRAN_CODE) AS bran_code
                  ,NVL(T1.UNIT1_CODE, T2.UNIT1_CODE) AS unit1_code
                  ,NVL(T1.UNIT2_CODE, T2.UNIT2_CODE) AS unit2_code
                  ,NVL(T1.UNIT3_CODE, T2.UNIT3_CODE) AS unit3_code
                  ,NVL(T1.UNIT4_CODE, T2.UNIT4_CODE) AS unit4_code
                  ,NVL(T1.UNIT5_CODE, T2.UNIT5_CODE) AS unit5_code
                  ,NVL(T1.DEPT1_CODE, T2.DEPT1_CODE) AS dept1_code
                  ,NVL(T1.INTR_RATE,T2.INTR_RATE) AS intr_rate
                  ,NVL(T1.DUE_DATE,T2.DUE_DATE) AS due_date
                  ,t1.new_cust_flag as new_cust_flag
            FROM ( SELECT 
            /*unique*/ * FROM T_PM_ACCT_DTL_AF a
            WHERE DATA_DATE = 20141001
            /*AND acct_flag in ('DEPOSIT','LOAN','OUTER','ETC','CHANGKOU','DYMX','SLL','LOAN_CN')
            AND flag IS NOT NULL
            AND dept1_code is not NULL
            AND cur_code != 0
            and length(TRIM(mgr_code)) >= 3*/ ) T1
            FULL JOIN (
            SELECT 
            /*unique*/ * FROM T_PM_ACCT_DTL_AF a
            WHERE DATA_DATE = 20140930
            /*AND acct_flag in ('DEPOSIT','LOAN','OUTER','ETC','CHANGKOU','DYMX','SLL','LOAN_CN')
            AND flag IS NOT NULL
            AND dept1_code is not NULL
            AND cur_code != 0
            and length(TRIM(mgr_code)) >= 3*/ ) T2
               ON T1.ACCT_NO_PK = T2.ACCT_NO_PK
               AND nvl(T1.MGR_CODE,'XXXXX') = nvl(T2.MGR_CODE,'XXXXX')
              -- AND T1.DEPT1_CODE = T2.DEPT1_CODE  --ó|??è??????àí?
               AND nvl(T1.UNIT2_CODE,'XXXXX') = nvl(T2.UNIT2_CODE,'XXXXX')
               AND nvl(T1.SUB_CODE,'XXXXX') = nvl(T2.SUB_CODE,'XXXXX')
               and nvl(t1.flag,'X') = nvl(t2.flag,'X')
               and nvl(t1.term,0) = nvl(t2.term,0) );
               
               select * from table(dbms_xplan.display());
    
    
    Plan hash value: 3843934819
     
    ----------------------------------------------------------------------------------------------------------------------
    | Id  | Operation                 | Name             | Rows  | Bytes |TempSpc| Cost (%CPU)| Time     | Pstart| Pstop |
    ----------------------------------------------------------------------------------------------------------------------
    |   0 | SELECT STATEMENT          |                  |     1 |       |       |   181K  (1)| 00:36:17 |       |       |
    |   1 |  SORT AGGREGATE           |                  |     1 |       |       |            |          |       |       |
    |   2 |   VIEW                    |                  |  4444K|       |       |   181K  (1)| 00:36:17 |       |       |
    |   3 |    UNION-ALL              |                  |       |       |       |            |          |       |       |
    |*  4 |     HASH JOIN RIGHT OUTER |                  |  3493K|   406M|   242M| 90693   (1)| 00:18:09 |       |       |
    |   5 |      PARTITION LIST SINGLE|                  |  3479K|   202M|       | 33214   (1)| 00:06:39 |   KEY |   KEY |
    |   6 |       TABLE ACCESS FULL   | T_PM_ACCT_DTL_AF |  3479K|   202M|       | 33214   (1)| 00:06:39 |   638 |   638 |
    |   7 |      PARTITION LIST SINGLE|                  |  3493K|   203M|       | 33356   (1)| 00:06:41 |   KEY |   KEY |
    |   8 |       TABLE ACCESS FULL   | T_PM_ACCT_DTL_AF |  3493K|   203M|       | 33356   (1)| 00:06:41 |   639 |   639 |
    |*  9 |     HASH JOIN ANTI        |                  |   951K|   110M|   242M| 90670   (1)| 00:18:09 |       |       |
    |  10 |      PARTITION LIST SINGLE|                  |  3479K|   202M|       | 33214   (1)| 00:06:39 |   KEY |   KEY |
    |  11 |       TABLE ACCESS FULL   | T_PM_ACCT_DTL_AF |  3479K|   202M|       | 33214   (1)| 00:06:39 |   638 |   638 |
    |  12 |      PARTITION LIST SINGLE|                  |  3493K|   203M|       | 33333   (1)| 00:06:40 |   KEY |   KEY |
    |  13 |       TABLE ACCESS FULL   | T_PM_ACCT_DTL_AF |  3493K|   203M|       | 33333   (1)| 00:06:40 |   639 |   639 |
    ----------------------------------------------------------------------------------------------------------------------
     
    Predicate Information (identified by operation id):
    ---------------------------------------------------
     
       4 - access(NVL("A"."TERM",0)=NVL("A"."TERM"(+),0) AND NVL("A"."FLAG",'X')=NVL("A"."FLAG"(+),'X') AND 
                  NVL("A"."SUB_CODE",'XXXXX')=NVL("A"."SUB_CODE"(+),'XXXXX') AND 
                  NVL("A"."UNIT2_CODE",'XXXXX')=NVL("A"."UNIT2_CODE"(+),'XXXXX') AND 
                  NVL("A"."MGR_CODE",'XXXXX')=NVL("A"."MGR_CODE"(+),'XXXXX') AND "A"."ACCT_NO_PK"="A"."ACCT_NO_PK"(+))
       9 - access("A"."ACCT_NO_PK"="A"."ACCT_NO_PK" AND NVL("A"."MGR_CODE",'XXXXX')=NVL("A"."MGR_CODE",'XXXXX') 
                  AND NVL("A"."UNIT2_CODE",'XXXXX')=NVL("A"."UNIT2_CODE",'XXXXX') AND 
                  NVL("A"."SUB_CODE",'XXXXX')=NVL("A"."SUB_CODE",'XXXXX') AND NVL("A"."FLAG",'X')=NVL("A"."FLAG",'X') AND 
                  NVL("A"."TERM",0)=NVL("A"."TERM",0))
    
    --------------------------------------------------------------------
    explain plan for 
    select count(*) from (SELECT /*+ NATIVE_FULL_OUTER_JOIN */ 
                   20141001 AS data_date
                  ,NVL(T1.ACCT_NO, T2.ACCT_NO) AS acct_no
                  ,NVL(T1.ACCT_ORD, T2.ACCT_ORD) AS acct_ord
                  ,NVL(T1.ACCT_NO_PK, T2.ACCT_NO_PK) AS acct_no_pk
                  ,NVL(T1.ACCT_BAL, 0) AS acct_bal
                  ,NVL(T1.D_CMP_BAL, T2.D_CMP_BAL) AS d_cmp_bal
                  ,NVL(T1.M_CMP_BAL, T2.M_CMP_BAL) AS m_cmp_bal
                  ,NVL(T1.Y_CMP_BAL, T2.Y_CMP_BAL) AS y_cmp_bal
                  ,NVL(T1.FLAG, T2.FLAG) AS flag
                  ,NVL(T1.ACCT_FLAG, T2.ACCT_FLAG) AS acct_flag
                  ,NVL(T1.TERM, T2.TERM) AS term
                  ,NVL(T1.TERM_FLAG, T2.TERM_FLAG) AS term_flag
                  ,NVL(T1.CUR_CODE, T2.CUR_CODE) AS cur_code
                  ,NVL(T1.CUR_NAME, T2.CUR_NAME) AS cur_name
                  ,NVL(T1.SUB_CODE, T2.SUB_CODE) AS sub_code
                  ,NVL(T1.CUST_NO, T2.CUST_NO)  AS cust_no
                  ,NVL(T1.CUST_TYPE, T2.CUST_TYPE) AS cust_type
                  ,NVL(T1.CUST_NAME, T2.CUST_NAME) AS cust_name
                  ,NVL(T1.BANK_CORP_CODE, T2.BANK_CORP_CODE)  AS bank_corp_code
                  ,NVL(T1.BRAN_NAME, T2.BRAN_NAME) AS bran_name
                  ,NVL(T1.MGR_CODE, T2.MGR_CODE) AS mgr_code
                  ,NVL(T1.MGR_NAME, T2.MGR_NAME) AS mgr_name
                  ,NVL(T1.OPEN_DATE, T2.OPEN_DATE) AS open_date
                  ,NVL(T1.FIX_BAL, 0) AS fix_bal
                  ,NVL(T1.DIV_FIX_FLAG, T2.DIV_FIX_FLAG) AS div_fix_flag
                  ,NVL(T1.ADJUST_AMT, 0) AS adjust_amt
                  ,NVL(T1.ADJUST_AMT_AF, 0) AS adjust_amt_af
                  ,CASE
                     WHEN SUBSTR(20141001, -4) = '0101' THEN
                      NVL(T1.ADJUST_AMT_AF, 0)/360
                     ELSE
                      (NVL(T1.ADJUST_AMT_AF, 0) + NVL(T2.Y_ADD_AF, 0))/360
                      END AS y_avg_af
                  ,CASE
                     WHEN SUBSTR(20141001, -4) = '0101' THEN
                      NVL(T1.ADJUST_AMT_AF, 0)
                     ELSE
                      (NVL(T1.ADJUST_AMT_AF, 0) + NVL(T2.Y_ADD_AF, 0))
                   END AS Y_ADD_AF
                  ,NVL(T1.ACCT_INTR, 0) AS acct_intr
                  ,NVL(T1.SIM_PROFIT, 0) AS sim_profit
                  ,NVL(T1.SEPA_POR, T2.SEPA_POR) AS sepa_por
                  ,NVL(T1.PRI, T2.PRI) AS pri
                  ,NVL(T1.BRAN_CODE, T2.BRAN_CODE) AS bran_code
                  ,NVL(T1.UNIT1_CODE, T2.UNIT1_CODE) AS unit1_code
                  ,NVL(T1.UNIT2_CODE, T2.UNIT2_CODE) AS unit2_code
                  ,NVL(T1.UNIT3_CODE, T2.UNIT3_CODE) AS unit3_code
                  ,NVL(T1.UNIT4_CODE, T2.UNIT4_CODE) AS unit4_code
                  ,NVL(T1.UNIT5_CODE, T2.UNIT5_CODE) AS unit5_code
                  ,NVL(T1.DEPT1_CODE, T2.DEPT1_CODE) AS dept1_code
                  ,NVL(T1.INTR_RATE,T2.INTR_RATE) AS intr_rate
                  ,NVL(T1.DUE_DATE,T2.DUE_DATE) AS due_date
                  ,t1.new_cust_flag as new_cust_flag
            FROM ( SELECT 
            /*unique*/ * FROM T_PM_ACCT_DTL_AF a
            WHERE DATA_DATE = 20141001
            /*AND acct_flag in ('DEPOSIT','LOAN','OUTER','ETC','CHANGKOU','DYMX','SLL','LOAN_CN')
            AND flag IS NOT NULL
            AND dept1_code is not NULL
            AND cur_code != 0
            and length(TRIM(mgr_code)) >= 3*/ ) T1
            FULL JOIN (
            SELECT 
            /*unique*/ * FROM T_PM_ACCT_DTL_AF a
            WHERE DATA_DATE = 20140930
            /*AND acct_flag in ('DEPOSIT','LOAN','OUTER','ETC','CHANGKOU','DYMX','SLL','LOAN_CN')
            AND flag IS NOT NULL
            AND dept1_code is not NULL
            AND cur_code != 0
            and length(TRIM(mgr_code)) >= 3*/ ) T2
               ON T1.ACCT_NO_PK = T2.ACCT_NO_PK
               AND nvl(T1.MGR_CODE,'XXXXX') = nvl(T2.MGR_CODE,'XXXXX')
              -- AND T1.DEPT1_CODE = T2.DEPT1_CODE  --ó|??è??????àí?
               AND nvl(T1.UNIT2_CODE,'XXXXX') = nvl(T2.UNIT2_CODE,'XXXXX')
               AND nvl(T1.SUB_CODE,'XXXXX') = nvl(T2.SUB_CODE,'XXXXX')
               and nvl(t1.flag,'X') = nvl(t2.flag,'X')
               and nvl(t1.term,0) = nvl(t2.term,0) );
               
               select * from table(dbms_xplan.display());
    
    
    
    
    Plan hash value: 943977707
     
    ---------------------------------------------------------------------------------------------------------------------
    | Id  | Operation                | Name             | Rows  | Bytes |TempSpc| Cost (%CPU)| Time     | Pstart| Pstop |
    ---------------------------------------------------------------------------------------------------------------------
    |   0 | SELECT STATEMENT         |                  |     1 |       |       |   114K  (1)| 00:22:58 |       |       |
    |   1 |  SORT AGGREGATE          |                  |     1 |       |       |            |          |       |       |
    |   2 |   VIEW                   | VW_FOJ_0         |  3493K|       |       |   114K  (1)| 00:22:58 |       |       |
    |*  3 |    HASH JOIN FULL OUTER  |                  |  3493K|   892M|   484M|   114K  (1)| 00:22:58 |       |       |
    |   4 |     PARTITION LIST SINGLE|                  |  3479K|   444M|       | 33218   (1)| 00:06:39 |   KEY |   KEY |
    |   5 |      VIEW                |                  |  3479K|   444M|       | 33218   (1)| 00:06:39 |       |       |
    |   6 |       TABLE ACCESS FULL  | T_PM_ACCT_DTL_AF |  3479K|   202M|       | 33218   (1)| 00:06:39 |   638 |   638 |
    |   7 |     PARTITION LIST SINGLE|                  |  3493K|   446M|       | 33360   (1)| 00:06:41 |   KEY |   KEY |
    |   8 |      VIEW                |                  |  3493K|   446M|       | 33360   (1)| 00:06:41 |       |       |
    |   9 |       TABLE ACCESS FULL  | T_PM_ACCT_DTL_AF |  3493K|   203M|       | 33360   (1)| 00:06:41 |   639 |   639 |
    ---------------------------------------------------------------------------------------------------------------------
     
    Predicate Information (identified by operation id):
    ---------------------------------------------------
     
       3 - access("T1"."ACCT_NO_PK"="T2"."ACCT_NO_PK" AND NVL("T1"."MGR_CODE",'XXXXX')=NVL("T2"."MGR_CODE",'XXXXX
                  ') AND NVL("T1"."UNIT2_CODE",'XXXXX')=NVL("T2"."UNIT2_CODE",'XXXXX') AND 
                  NVL("T1"."SUB_CODE",'XXXXX')=NVL("T2"."SUB_CODE",'XXXXX') AND NVL("T1"."FLAG",'X')=NVL("T2"."FLAG",'X') AND 
                  NVL("T1"."TERM",0)=NVL("T2"."TERM",0))
    

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  • 原文地址:https://www.cnblogs.com/hzcya1995/p/13351848.html
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