本文解析了一个复杂的SQL执行计划案例，详细介绍了如何理解SQL执行过程中的各个操作步骤，包括表连接、索引扫描、分区访问等，并通过具体示例展示了如何定位特定分区。
explain plan for select *
from
(SELECT
20131223 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(20131223, -4) = '0101' THEN
NVL(T1.ADJUST_AMT_AF, 0) / 90
ELSE
(NVL(T1.ADJUST_AMT_AF, 0) + NVL(T2.Y_ADD_AF, 0)) / 90
END AS Y_AVG_AF,
CASE
WHEN SUBSTR(20131223, -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
FROM (SELECT
*
FROM T_PM_ACCT_DTL_AF A
WHERE DATA_DATE = 20131223
AND ACCT_FLAG IN ('DEPOSIT',
'LOAN',
'OUTER',
'ETC',
'CHANGKOU',
'DYMX')
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
*
FROM T_PM_ACCT_DTL_AF A
WHERE DATA_DATE = 20131222
AND ACCT_FLAG IN ('DEPOSIT',
'LOAN',
'OUTER',
'ETC',
'CHANGKOU',
'DYMX')
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 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)
UNION ALL
SELECT
20131223 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(20131223, -4) = '0101' THEN
NVL(T1.ADJUST_AMT_AF, 0) / 90
ELSE
(NVL(T1.ADJUST_AMT_AF, 0) + NVL(T2.Y_ADD_AF, 0)) / 90
END AS Y_AVG_AF,
CASE
WHEN SUBSTR(20131223, -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
FROM (SELECT
*
FROM T_PM_ACCT_DTL_AF A
WHERE DATA_DATE = 20131223
AND ACCT_FLAG IN ('INTLBU', 'PFS', 'INCOME')
AND FLAG <> '625'
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
*
FROM T_PM_ACCT_DTL_AF A
WHERE DATA_DATE = 20131222
AND ACCT_FLAG IN ('INTLBU', 'PFS', 'INCOME')
AND FLAG <> '625'
AND FLAG IS NOT NULL
AND DEPT1_CODE IS NOT NULL
AND CUR_CODE != 0
AND LENGTH(TRIM(MGR_CODE)) >= 3) T2
ON NVL(T1.ACCT_NO_PK, 'XXXXX') = NVL(T2.ACCT_NO_PK, 'XXXXX')
AND NVL(T1.MGR_CODE, 'XXXXX') = NVL(T2.MGR_CODE, 'XXXXX')
AND NVL(T1.UNIT3_CODE, 'XXXXX') = NVL(T2.UNIT3_CODE, 'XXXXX')
AND NVL(T1.UNIT4_CODE, 'XXXXX') = NVL(T2.UNIT4_CODE, 'XXXXX')
AND NVL(T1.FLAG, 'X') = NVL(T2.FLAG, 'X')
UNION ALL
SELECT
20131223 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(20131223, -4) = '0101' THEN
NVL(T1.ADJUST_AMT_AF, 0) / 90
ELSE
(NVL(T1.ADJUST_AMT_AF, 0) + NVL(T2.Y_ADD_AF, 0)) / 90
END AS Y_AVG_AF,
CASE
WHEN SUBSTR(20131223, -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
FROM (SELECT
*
FROM T_PM_ACCT_DTL_AF A
WHERE DATA_DATE = 20131223
AND ACCT_FLAG = 'PFS'
AND FLAG = '625'
AND DEPT1_CODE IS NOT NULL
AND CUR_CODE != 0
AND LENGTH(TRIM(MGR_CODE)) >= 3
AND FLAG IS NOT NULL) T1
FULL JOIN (SELECT
*
FROM T_PM_ACCT_DTL_AF A
WHERE DATA_DATE = 20131222
AND ACCT_FLAG = 'PFS'
AND FLAG = '625'
AND DEPT1_CODE IS NOT NULL
AND CUR_CODE != 0
AND LENGTH(TRIM(MGR_CODE)) >= 3
AND FLAG IS NOT NULL) T2
ON NVL(T1.ACCT_NO_PK, 'XXXXX') = NVL(T2.ACCT_NO_PK, 'XXXXX')
AND NVL(T1.MGR_CODE, 'XXXXX') = NVL(T2.MGR_CODE, 'XXXXX')
AND NVL(T1.UNIT3_CODE, 'XXXXX') = NVL(T2.UNIT3_CODE, 'XXXXX')
AND NVL(T1.UNIT4_CODE, 'XXXXX') = NVL(T2.UNIT4_CODE, 'XXXXX')
AND NVL(T1.FLAG, 'X') = NVL(T2.FLAG, 'X')) T1
LEFT JOIN S_PM_CUSTOMER T3
ON T1.CUST_NO = T3.CUST_NO
AND T1.BANK_CORP_CODE = T3.BANK_CORP_CODE
LEFT JOIN S_PM_BRANCH T4
ON T1.BRAN_CODE = T4.BRAN_CODE
LEFT JOIN S_PM_CURRENCY T5
ON T1.CUR_CODE = T5.CUR_CODE
LEFT JOIN (SELECT
*
FROM S_PM_MGR_DEPT_RELA A
WHERE DEPT1_CODE <> '999999999') T6
ON T1.MGR_CODE = T6.MGR_CODE
AND T1.UNIT3_CODE = T6.UNIT3_CODE
AND T1.UNIT4_CODE = T6.UNIT4_CODE
Plan hash value: 3224195590
---------------------------------------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time | Pstart| Pstop |
---------------------------------------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 659M| 1051G| | 2535K (56)| 08:27:06 | | |
|* 1 | HASH JOIN RIGHT OUTER | | 659M| 1051G| | 2535K (56)| 08:27:06 | | |
| 2 | TABLE ACCESS FULL | S_PM_BRANCH | 98 | 5390 | | 3 (0)| 00:00:01 | | |
|* 3 | HASH JOIN RIGHT OUTER | | 659M| 1017G| | 2532K (56)| 08:26:28 | | |
| 4 | TABLE ACCESS FULL | S_PM_CURRENCY | 18 | 594 | | 3 (0)| 00:00:01 | | |
|* 5 | HASH JOIN RIGHT OUTER | | 659M| 997G| 5064K| 2529K (56)| 08:25:50 | | |
|* 6 | TABLE ACCESS FULL | S_PM_MGR_DEPT_RELA | 6562 | 4985K| | 53 (0)| 00:00:01 | | |
|* 7 | HASH JOIN RIGHT OUTER | | 8235K| 6652M| 113M| 2191K (64)| 07:18:15 | | |
| 8 | TABLE ACCESS FULL | S_PM_CUSTOMER | 500K| 107M| | 2973 (1)| 00:00:36 | | |
| 9 | VIEW | | 8235K| 4885M| | 1935K (73)| 06:27:09 | | |
| 10 | UNION-ALL | | | | | | | | |
| 11 | VIEW | | 6490K| 7328M| | 1260K (73)| 04:12:08 | | |
| 12 | UNION-ALL | | | | | | | | |
|* 13 | HASH JOIN OUTER | | 1387K| 1498M| 816M| 420K (65)| 01:24:10 | | |
| 14 | PARTITION LIST SINGLE | | 1387K| 800M| | 69010 (78)| 00:13:49 | KEY | KEY |
|* 15 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF | 1387K| 800M| | 69010 (78)| 00:13:49 | 736 | 736 |
| 16 | PARTITION LIST SINGLE | | 2179K| 1095M| | 255K (86)| 00:51:09 | KEY | KEY |
| 17 | VIEW | | 2179K| 1095M| | 255K (86)| 00:51:09 | | |
|* 18 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF | 2179K| 1122M| | 255K (86)| 00:51:09 | 734 | 734 |
|* 19 | HASH JOIN RIGHT ANTI | | 5102K| 3386M| 222M| 839K (76)| 02:47:59 | | |
| 20 | PARTITION LIST SINGLE | | 1387K| 206M| | 69007 (78)| 00:13:49 | KEY | KEY |
|* 21 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF | 1387K| 206M| | 69007 (78)| 00:13:49 | 736 | 736 |
| 22 | PARTITION LIST SINGLE | | 5309K| 2734M| | 621K (95)| 02:04:15 | KEY | KEY |
|* 23 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF | 5309K| 2734M| | 621K (95)| 02:04:15 | 734 | 734 |
| 24 | VIEW | | 1655K| 1868M| | 670K (73)| 02:14:01 | | |
| 25 | UNION-ALL | | | | | | | | |
|* 26 | HASH JOIN OUTER | | 278K| 300M| 163M| 337K (72)| 01:07:34 | | |
| 27 | PARTITION LIST SINGLE | | 278K| 160M| | 38640 (61)| 00:07:44 | KEY | KEY |
|* 28 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF | 278K| 160M| | 38640 (61)| 00:07:44 | 736 | 736 |
| 29 | PARTITION LIST SINGLE | | 1385K| 696M| | 255K (86)| 00:51:09 | KEY | KEY |
| 30 | VIEW | | 1385K| 696M| | 255K (86)| 00:51:09 | | |
|* 31 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF | 1385K| 713M| | 255K (86)| 00:51:09 | 734 | 734 |
|* 32 | HASH JOIN RIGHT ANTI | | 1376K| 870M| 35M| 332K (73)| 01:06:28 | | |
| 33 | PARTITION LIST SINGLE | | 278K| 32M| | 38639 (61)| 00:07:44 | KEY | KEY |
|* 34 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF | 278K| 32M| | 38639 (61)| 00:07:44 | 736 | 736 |
| 35 | PARTITION LIST SINGLE | | 1385K| 713M| | 255K (86)| 00:51:09 | KEY | KEY |
|* 36 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF | 1385K| 713M| | 255K (86)| 00:51:09 | 734 | 734 |
| 37 | VIEW | | 90474 | 102M| | 5005 (1)| 00:01:01 | | |
| 38 | UNION-ALL | | | | | | | | |
| 39 | NESTED LOOPS OUTER | | 1 | 1145 | | 2502 (1)| 00:00:31 | | |
| 40 | PARTITION LIST SINGLE | | 1 | 605 | | 2 (0)| 00:00:01 | KEY | KEY |
|* 41 | TABLE ACCESS BY LOCAL INDEX ROWID| T_PM_ACCT_DTL_AF | 1 | 605 | | 2 (0)| 00:00:01 | 736 | 736 |
|* 42 | INDEX RANGE SCAN | T_PM_ACCT_DTL_AF_IDX1 | 8312 | | | 1 (0)| 00:00:01 | 736 | 736 |
| 43 | PARTITION LIST SINGLE | | 1 | 540 | | 2500 (1)| 00:00:30 | KEY | KEY |
|* 44 | TABLE ACCESS BY LOCAL INDEX ROWID| T_PM_ACCT_DTL_AF | 1 | 540 | | 2500 (1)| 00:00:30 | 734 | 734 |
|* 45 | INDEX RANGE SCAN | T_PM_ACCT_DTL_AF_IDX1 | 38067 | | | 568 (0)| 00:00:07 | 734 | 734 |
|* 46 | HASH JOIN RIGHT ANTI | | 90473 | 57M| | 2504 (1)| 00:00:31 | | |
| 47 | PARTITION LIST SINGLE | | 1 | 123 | | 2 (0)| 00:00:01 | KEY | KEY |
|* 48 | TABLE ACCESS BY LOCAL INDEX ROWID| T_PM_ACCT_DTL_AF | 1 | 123 | | 2 (0)| 00:00:01 | 736 | 736 |
|* 49 | INDEX RANGE SCAN | T_PM_ACCT_DTL_AF_IDX1 | 8312 | | | 1 (0)| 00:00:01 | 736 | 736 |
| 50 | PARTITION LIST SINGLE | | 90473 | 46M| | 2501 (1)| 00:00:31 | KEY | KEY |
|* 51 | TABLE ACCESS BY LOCAL INDEX ROWID| T_PM_ACCT_DTL_AF | 90473 | 46M| | 2501 (1)| 00:00:31 | 734 | 734 |
|* 52 | INDEX RANGE SCAN | T_PM_ACCT_DTL_AF_IDX1 | 38067 | | | 569 (0)| 00:00:07 | 734 | 734 |
---------------------------------------------------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
1 - access("T1"."BRAN_CODE"="T4"."BRAN_CODE"(+))
3 - access("T5"."CUR_CODE"(+)=TO_NUMBER("T1"."CUR_CODE"))
5 - access("T1"."UNIT4_CODE"="A"."UNIT4_CODE"(+) AND "T1"."UNIT3_CODE"="A"."UNIT3_CODE"(+) AND "T1"."MGR_CODE"="A"."MGR_CODE"(+))
6 - filter("DEPT1_CODE"(+)<>'999999999')
7 - access("T1"."BANK_CORP_CODE"="T3"."BANK_CORP_CODE"(+) AND "T1"."CUST_NO"="T3"."CUST_NO"(+))
13 - access(NVL("A"."TERM",0)=NVL("T2"."TERM"(+),0) AND NVL("A"."FLAG",'X')=NVL("T2"."FLAG"(+),'X') AND
NVL("A"."SUB_CODE",'XXXXX')=NVL("T2"."SUB_CODE"(+),'XXXXX') AND NVL("A"."UNIT2_CODE",'XXXXX')=NVL("T2"."UNIT2_CODE"(+),'XXXXX') AND
NVL("A"."MGR_CODE",'XXXXX')=NVL("T2"."MGR_CODE"(+),'XXXXX') AND "A"."ACCT_NO_PK"="T2"."ACCT_NO_PK"(+))
15 - filter("FLAG" IS NOT NULL AND "DEPT1_CODE" IS NOT NULL AND ("ACCT_FLAG"='CHANGKOU' OR "ACCT_FLAG"='DEPOSIT' OR
"ACCT_FLAG"='DYMX' OR "ACCT_FLAG"='ETC' OR "ACCT_FLAG"='LOAN' OR "ACCT_FLAG"='OUTER') AND TO_NUMBER("CUR_CODE")<>0 AND
LENGTH(TRIM("MGR_CODE"))>=3)
18 - filter("FLAG" IS NOT NULL AND "DEPT1_CODE" IS NOT NULL AND ("ACCT_FLAG"='CHANGKOU' OR "ACCT_FLAG"='DEPOSIT' OR
"ACCT_FLAG"='DYMX' OR "ACCT_FLAG"='ETC' OR "ACCT_FLAG"='LOAN' OR "ACCT_FLAG"='OUTER') AND TO_NUMBER("CUR_CODE")<>0 AND
LENGTH(TRIM("MGR_CODE"))>=3)
19 - 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))
21 - filter("FLAG" IS NOT NULL AND "DEPT1_CODE" IS NOT NULL AND ("ACCT_FLAG"='CHANGKOU' OR "ACCT_FLAG"='DEPOSIT' OR
"ACCT_FLAG"='DYMX' OR "ACCT_FLAG"='ETC' OR "ACCT_FLAG"='LOAN' OR "ACCT_FLAG"='OUTER') AND TO_NUMBER("CUR_CODE")<>0 AND
LENGTH(TRIM("MGR_CODE"))>=3)
23 - filter("FLAG" IS NOT NULL AND "DEPT1_CODE" IS NOT NULL AND ("ACCT_FLAG"='CHANGKOU' OR "ACCT_FLAG"='DEPOSIT' OR
"ACCT_FLAG"='DYMX' OR "ACCT_FLAG"='ETC' OR "ACCT_FLAG"='LOAN' OR "ACCT_FLAG"='OUTER') AND TO_NUMBER("CUR_CODE")<>0 AND
LENGTH(TRIM("MGR_CODE"))>=3)
26 - access(NVL("A"."FLAG",'X')=NVL("T2"."FLAG"(+),'X') AND NVL("A"."UNIT4_CODE",'XXXXX')=NVL("T2"."UNIT4_CODE"(+),'XXXXX') AND
NVL("A"."UNIT3_CODE",'XXXXX')=NVL("T2"."UNIT3_CODE"(+),'XXXXX') AND NVL("A"."MGR_CODE",'XXXXX')=NVL("T2"."MGR_CODE"(+),'XXXXX') AND
NVL("A"."ACCT_NO_PK",'XXXXX')=NVL("T2"."ACCT_NO_PK"(+),'XXXXX'))
28 - filter("FLAG" IS NOT NULL AND "DEPT1_CODE" IS NOT NULL AND ("ACCT_FLAG"='INCOME' OR "ACCT_FLAG"='INTLBU' OR
"ACCT_FLAG"='PFS') AND "FLAG"<>'625' AND TO_NUMBER("CUR_CODE")<>0 AND LENGTH(TRIM("MGR_CODE"))>=3)
31 - filter("FLAG" IS NOT NULL AND "DEPT1_CODE" IS NOT NULL AND ("ACCT_FLAG"='INCOME' OR "ACCT_FLAG"='INTLBU' OR
"ACCT_FLAG"='PFS') AND "FLAG"<>'625' AND TO_NUMBER("CUR_CODE")<>0 AND LENGTH(TRIM("MGR_CODE"))>=3)
32 - access(NVL("A"."ACCT_NO_PK",'XXXXX')=NVL("A"."ACCT_NO_PK",'XXXXX') AND
NVL("A"."MGR_CODE",'XXXXX')=NVL("A"."MGR_CODE",'XXXXX') AND NVL("A"."UNIT3_CODE",'XXXXX')=NVL("A"."UNIT3_CODE",'XXXXX') AND
NVL("A"."UNIT4_CODE",'XXXXX')=NVL("A"."UNIT4_CODE",'XXXXX') AND NVL("A"."FLAG",'X')=NVL("A"."FLAG",'X'))
34 - filter("FLAG" IS NOT NULL AND "DEPT1_CODE" IS NOT NULL AND ("ACCT_FLAG"='INCOME' OR "ACCT_FLAG"='INTLBU' OR
"ACCT_FLAG"='PFS') AND "FLAG"<>'625' AND TO_NUMBER("CUR_CODE")<>0 AND LENGTH(TRIM("MGR_CODE"))>=3)
36 - filter("FLAG" IS NOT NULL AND "DEPT1_CODE" IS NOT NULL AND ("ACCT_FLAG"='INCOME' OR "ACCT_FLAG"='INTLBU' OR
"ACCT_FLAG"='PFS') AND "FLAG"<>'625' AND TO_NUMBER("CUR_CODE")<>0 AND LENGTH(TRIM("MGR_CODE"))>=3)
41 - filter("DEPT1_CODE" IS NOT NULL AND "FLAG" IS NOT NULL AND "ACCT_FLAG"='PFS' AND "FLAG"='625' AND TO_NUMBER("CUR_CODE")<>0
AND LENGTH(TRIM("MGR_CODE"))>=3)
42 - access(SUBSTR("FLAG",1,1)='6')
44 - filter("DEPT1_CODE"(+) IS NOT NULL AND "FLAG"(+) IS NOT NULL AND "ACCT_FLAG"(+)='PFS' AND "FLAG"(+)='625' AND
TO_NUMBER("CUR_CODE"(+))<>0 AND LENGTH(TRIM("MGR_CODE"(+)))>=3 AND NVL("A"."FLAG",'X')=NVL("A"."FLAG"(+),'X') AND
NVL("A"."UNIT4_CODE",'XXXXX')=NVL("A"."UNIT4_CODE"(+),'XXXXX') AND NVL("A"."UNIT3_CODE",'XXXXX')=NVL("A"."UNIT3_CODE"(+),'XXXXX')
AND NVL("A"."MGR_CODE",'XXXXX')=NVL("A"."MGR_CODE"(+),'XXXXX') AND NVL("A"."ACCT_NO_PK",'XXXXX')=NVL("A"."ACCT_NO_PK"(+),'XXXXX'))
45 - access(SUBSTR("FLAG"(+),1,1)='6')
46 - access(NVL("A"."ACCT_NO_PK",'XXXXX')=NVL("A"."ACCT_NO_PK",'XXXXX') AND
NVL("A"."MGR_CODE",'XXXXX')=NVL("A"."MGR_CODE",'XXXXX') AND NVL("A"."UNIT3_CODE",'XXXXX')=NVL("A"."UNIT3_CODE",'XXXXX') AND
NVL("A"."UNIT4_CODE",'XXXXX')=NVL("A"."UNIT4_CODE",'XXXXX') AND NVL("A"."FLAG",'X')=NVL("A"."FLAG",'X'))
48 - filter("DEPT1_CODE" IS NOT NULL AND "FLAG" IS NOT NULL AND "ACCT_FLAG"='PFS' AND "FLAG"='625' AND TO_NUMBER("CUR_CODE")<>0
AND LENGTH(TRIM("MGR_CODE"))>=3)
49 - access(SUBSTR("FLAG",1,1)='6')
51 - filter("DEPT1_CODE" IS NOT NULL AND "FLAG" IS NOT NULL AND "ACCT_FLAG"='PFS' AND "FLAG"='625' AND TO_NUMBER("CUR_CODE")<>0
AND LENGTH(TRIM("MGR_CODE"))>=3)
52 - access(SUBSTR("FLAG",1,1)='6')
Note
-----
- dynamic sampling used for this statement (level=2)
| 40 | PARTITION LIST SINGLE | | 1 | 605 | | 2 (0)| 00:00:01 | KEY | KEY |
|* 41 | TABLE ACCESS BY LOCAL INDEX ROWID| T_PM_ACCT_DTL_AF | 1 | 605 | | 2 (0)| 00:00:01 | 736 | 736 |
|* 42 | INDEX RANGE SCAN | T_PM_ACCT_DTL_AF_IDX1 | 8312 | | | 1 (0)| 00:00:01 | 736 | 736 |
41 - filter("DEPT1_CODE" IS NOT NULL AND "FLAG" IS NOT NULL AND "ACCT_FLAG"='PFS' AND "FLAG"='625' AND TO_NUMBER("CUR_CODE")<>0
AND LENGTH(TRIM("MGR_CODE"))>=3)
42 - access(SUBSTR("FLAG",1,1)='6')
这种情况下要怎么确认分区736对应的分区呢？
select * from user_tab_partitions where table_name='T_PM_ACCT_DTL_AF' and partition_position=736
---分区为ACCT_DTL_AF_20131223
继续测试:
create table T_PM_ACCT_DTL_AF_TEST
(
DATA_DATE NUMBER(8),
BRAN_CODE VARCHAR2(50),
UNIT1_CODE VARCHAR2(10),
UNIT2_CODE VARCHAR2(10),
UNIT3_CODE VARCHAR2(10)
)
partition by list (DATA_DATE)
(
partition ACCT_DTL_AF_20090101 values (20090101));
alter table T_PM_ACCT_DTL_AF_test add partition ACCT_DTL_AF_20090102 values(20090102) ;
alter table T_PM_ACCT_DTL_AF_test add partition ACCT_DTL_AF_20090103 values(20090103) ;
alter table T_PM_ACCT_DTL_AF_test add partition ACCT_DTL_AF_20090104 values(20090104) ;
alter table T_PM_ACCT_DTL_AF_test add partition ACCT_DTL_AF_20090105 values(20090105) ;
SQL> select table_name,partition_name,partition_position from user_tab_partitions where table_name='T_PM_ACCT_DTL_AF_TEST';
TABLE_NAME PARTITION_NAME PARTITION_POSITION
------------------------------ ------------------------------ ------------------
T_PM_ACCT_DTL_AF_TEST ACCT_DTL_AF_20090101 1
T_PM_ACCT_DTL_AF_TEST ACCT_DTL_AF_20090102 2
T_PM_ACCT_DTL_AF_TEST ACCT_DTL_AF_20090103 3
T_PM_ACCT_DTL_AF_TEST ACCT_DTL_AF_20090104 4
T_PM_ACCT_DTL_AF_TEST ACCT_DTL_AF_20090105 5
SQL> select count(*) from T_PM_ACCT_DTL_AF_TEST where DATA_DATE=20090104;
Execution Plan
----------------------------------------------------------
Plan hash value: 788997387
----------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop |
----------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 13 | 2 (0)| 00:00:01 | | |
| 1 | SORT AGGREGATE | | 1 | 13 | | | | |
| 2 | PARTITION LIST SINGLE| | 1 | 13 | 2 (0)| 00:00:01 | 4 | 4 |
| 3 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF_TEST | 1 | 13 | 2 (0)| 00:00:01 | 4 | 4 |
----------------------------------------------------------------------------------------------------------------
Note
-----
- dynamic sampling used for this statement (level=2)
Statistics
----------------------------------------------------------
0 recursive calls
0 db block gets
3 consistent gets
0 physical reads
0 redo size
421 bytes sent via SQL*Net to client
419 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
访问的是4号分区
SQL> select count(*) from T_PM_ACCT_DTL_AF_TEST where DATA_DATE=20090102;
Execution Plan
----------------------------------------------------------
Plan hash value: 788997387
----------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop |
----------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 13 | 2 (0)| 00:00:01 | | |
| 1 | SORT AGGREGATE | | 1 | 13 | | | | |
| 2 | PARTITION LIST SINGLE| | 1 | 13 | 2 (0)| 00:00:01 | 2 | 2 |
| 3 | TABLE ACCESS FULL | T_PM_ACCT_DTL_AF_TEST | 1 | 13 | 2 (0)| 00:00:01 | 2 | 2 |
----------------------------------------------------------------------------------------------------------------
Note
-----
- dynamic sampling used for this statement (level=2)
Statistics
----------------------------------------------------------
24 recursive calls
0 db block gets
6 consistent gets
0 physical reads
0 redo size
421 bytes sent via SQL*Net to client
419 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
访问的是2号分区
PARTITION_POSITION NUMBER Position of the partition within the table
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