sql优化案例（优化逻辑，with改写）
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778 779 780 781 782 783 784 785 786 787 788 789 790 | 查询语句大量阻塞，event为latch:buffer cache chain（该语句属于热链）。查询结果跑不出来。explain plan forSELECT K.IDX_CODE, NVL(AA.COUNT, 0) VALUE FROM K_AMR_CONFIG K LEFT JOIN (SELECT F.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT F.TG_ID) COUNT, (SELECT C.IDX_CODE FROM K_AMR_CONFIG C WHERE C.TAG_NO = F.TAG_NO AND C.TAG_TYPE = '02') IDX_CODE FROM K_AMR_EXCEP_FLOW F, (SELECT T.ORG_NO, T.TG_ID, A.AUTH_USER_NO FROM K_ID_G_TG T, K_ID_GR_TG_RELA R, K_ID_GRID_BUSS B, K_ID_STAFF A WHERE R.DATA_OPER_TYPE != 'D' AND R.TG_ID = T.TG_ID AND B.GR_ID = R.GR_ID AND B.DATA_OPER_TYPE != 'D' AND A.DATA_OPER_TYPE != 'D' AND A.STAFF_NO <> '无' AND A.STAFF_NO IS NOT NULL AND B.BUSS_NO = A.STAFF_NO AND A.AUTH_USER_NO IS NOT NULL AND A.AUTH_USER_NO != '无') F1 WHERE F1.TG_ID = F.TG_ID AND F1.ORG_NO = F.GDS_NO AND F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO IN ('TagPBGZ', 'TagPBZZ', 'TagPBYZBPH', 'TagPBDDY') AND SUBSTR(REPLACE(FIRST_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') AND F1.AUTH_USER_NO = :B1 GROUP BY F1.AUTH_USER_NO, F.GDS_NO, F.TAG_NO UNION ALL SELECT FF.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT FF.TG_ID) COUNT, 'PD0009' IDX_CODE FROM (SELECT F.GDS_NO, F.TG_ID FROM K_AMR_GBTD_FLOW F WHERE F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagPBGZTD' AND SUBSTR(REPLACE(MAKE_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F.GDS_NO, F.TG_ID HAVING COUNT(DISTINCT F.MSG_ID) >= 2) FF, (SELECT T.ORG_NO, T.TG_ID, A.AUTH_USER_NO FROM K_ID_G_TG T, K_ID_GR_TG_RELA R, K_ID_GRID_BUSS B, K_ID_STAFF A WHERE R.DATA_OPER_TYPE != 'D' AND R.TG_ID = T.TG_ID AND B.GR_ID = R.GR_ID AND B.DATA_OPER_TYPE != 'D' AND A.DATA_OPER_TYPE != 'D' AND B.BUSS_NO = A.STAFF_NO AND A.STAFF_NO <> '无' AND A.STAFF_NO IS NOT NULL AND A.AUTH_USER_NO IS NOT NULL AND A.AUTH_USER_NO != '无') F1 WHERE F1.TG_ID = FF.TG_ID AND F1.ORG_NO = FF.GDS_NO AND F1.AUTH_USER_NO = :B1 GROUP BY F1.AUTH_USER_NO, FF.GDS_NO UNION ALL SELECT FF.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT FF.DEVICE_NAME) COUNT, 'PD0012' IDX_CODE FROM (SELECT F.GDS_NO, F.TG_ID, DEVICE_NAME, COUNT(DISTINCT F.MSG_ID) CNT FROM K_AMR_LBTZ_FLOW F WHERE F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagLBTZ' AND SUBSTR(REPLACE(FIRST_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F.GDS_NO, F.TG_ID, DEVICE_NAME HAVING COUNT(DISTINCT F.MSG_ID) >= 3) FF, (SELECT T.ORG_NO, T.TG_ID, A.AUTH_USER_NO FROM K_ID_G_TG T, K_ID_GR_TG_RELA R, K_ID_GRID_BUSS B, K_ID_STAFF A WHERE R.DATA_OPER_TYPE != 'D' AND R.TG_ID = T.TG_ID AND B.GR_ID = R.GR_ID AND B.DATA_OPER_TYPE != 'D' AND A.DATA_OPER_TYPE != 'D' AND B.BUSS_NO = A.STAFF_NO AND A.STAFF_NO <> '无' AND A.STAFF_NO IS NOT NULL AND A.AUTH_USER_NO IS NOT NULL AND A.AUTH_USER_NO != '无') F1 WHERE F1.TG_ID = FF.TG_ID AND F1.ORG_NO = FF.GDS_NO AND F1.AUTH_USER_NO = :B1 GROUP BY F1.AUTH_USER_NO, FF.GDS_NO UNION ALL SELECT F.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT F.MSG_ID) COUNT, 'PD0013' IDX_CODE FROM K_AMR_GBTD_FLOW F, (SELECT T.ORG_NO, T.TG_ID, A.AUTH_USER_NO FROM K_ID_G_TG T, K_ID_GR_TG_RELA R, K_ID_GRID_BUSS B, K_ID_STAFF A WHERE R.DATA_OPER_TYPE != 'D' AND R.TG_ID = T.TG_ID AND B.GR_ID = R.GR_ID AND B.DATA_OPER_TYPE != 'D' AND A.DATA_OPER_TYPE != 'D' AND B.BUSS_NO = A.STAFF_NO AND A.STAFF_NO <> '无' AND A.STAFF_NO IS NOT NULL AND A.AUTH_USER_NO IS NOT NULL AND A.AUTH_USER_NO != '无') F1 WHERE F1.TG_ID = F.TG_ID AND F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagZBBS' AND SUBSTR(REPLACE(MAKE_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') AND F1.AUTH_USER_NO = :B1 GROUP BY F1.AUTH_USER_NO, F.GDS_NO UNION ALL SELECT FF.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT FF.DEVICE_NAME) COUNT, 'PD0014' IDX_CODE FROM (SELECT F.GDS_NO, F.TG_ID, DEVICE_NAME, COUNT(DISTINCT F.MSG_ID) CNT FROM K_AMR_GBTD_FLOW F WHERE F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagZBBS' AND SUBSTR(REPLACE(MAKE_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F.GDS_NO, F.TG_ID, DEVICE_NAME HAVING COUNT(DISTINCT F.MSG_ID) >= 2) FF, (SELECT T.ORG_NO, T.TG_ID, A.AUTH_USER_NO FROM K_ID_G_TG T, K_ID_GR_TG_RELA R, K_ID_GRID_BUSS B, K_ID_STAFF A WHERE R.DATA_OPER_TYPE != 'D' AND R.TG_ID = T.TG_ID AND B.GR_ID = R.GR_ID AND B.DATA_OPER_TYPE != 'D' AND A.DATA_OPER_TYPE != 'D' AND B.BUSS_NO = A.STAFF_NO AND A.STAFF_NO <> '无' AND A.STAFF_NO IS NOT NULL AND A.AUTH_USER_NO IS NOT NULL AND A.AUTH_USER_NO != '无') F1 WHERE F1.TG_ID = FF.TG_ID AND F1.ORG_NO = FF.GDS_NO AND F1.AUTH_USER_NO = :B1 GROUP BY F1.AUTH_USER_NO, FF.GDS_NO) AA ON AA.IDX_CODE = K.IDX_CODE WHERE K.IDX_CODE IN ('PD0002', 'PD0004', 'PD0006', 'PD0008', 'PD0009', 'PD0012', 'PD0013', 'PD0014');Plan hash value: 852542323 -------------------------------------------------------------------------------------------------------------------| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |-------------------------------------------------------------------------------------------------------------------| 0 | SELECT STATEMENT | | 8 | 256 | 84261 (1)| 00:16:52 ||* 1 | HASH JOIN OUTER | | 8 | 256 | 84261 (1)| 00:16:52 || 2 | INLIST ITERATOR | | | | | ||* 3 | INDEX RANGE SCAN | K_AMR_CONFIG_IDX_CODE | 8 | 56 | 1 (0)| 00:00:01 ||* 4 | VIEW | | 5 | 125 | 84260 (1)| 00:16:52 || 5 | UNION-ALL | | | | | ||* 6 | TABLE ACCESS BY INDEX ROWID | K_AMR_CONFIG | 1 | 19 | 1 (0)| 00:00:01 ||* 7 | INDEX RANGE SCAN | K_AMR_CONFIG_TAG_NO | 2 | | 1 (0)| 00:00:01 || 8 | SORT GROUP BY | | 1 | 132 | 4012 (1)| 00:00:49 || 9 | NESTED LOOPS | | 1 | 132 | 4011 (1)| 00:00:49 || 10 | NESTED LOOPS | | 9 | 132 | 4011 (1)| 00:00:49 ||* 11 | HASH JOIN | | 1 | 121 | 4010 (1)| 00:00:49 || 12 | INLIST ITERATOR | | | | | ||* 13 | TABLE ACCESS BY INDEX ROWID | K_AMR_EXCEP_FLOW | 28 | 1120 | 144 (0)| 00:00:02 ||* 14 | INDEX RANGE SCAN | IDX_TAG_NO | 9897 | | 7 (0)| 00:00:01 ||* 15 | TABLE ACCESS BY INDEX ROWID | K_IC_DIM_VALUE | 1 | 37 | 1 (0)| 00:00:01 ||* 16 | INDEX RANGE SCAN | IDX_K_IC_DIM_VALUE_N2 | 1 | | 1 (0)| 00:00:01 || 17 | MERGE JOIN CARTESIAN | | 60220 | 4763K| 3866 (1)| 00:00:47 || 18 | NESTED LOOPS | | 1 | 41 | 2 (0)| 00:00:01 || 19 | NESTED LOOPS | | 2 | 41 | 2 (0)| 00:00:01 ||* 20 | TABLE ACCESS BY INDEX ROWID | K_ID_STAFF | 1 | 21 | 1 (0)| 00:00:01 ||* 21 | INDEX RANGE SCAN | IDX_K_ID_STAFF_N4 | 1 | | 1 (0)| 00:00:01 ||* 22 | INDEX RANGE SCAN | IDX_BUSS_NO | 2 | | 1 (0)| 00:00:01 ||* 23 | TABLE ACCESS BY INDEX ROWID | K_ID_GRID_BUSS | 1 | 20 | 1 (0)| 00:00:01 || 24 | BUFFER SORT | | 262K| 10M| 3865 (1)| 00:00:47 ||* 25 | VIEW | | 262K| 10M| 3864 (1)| 00:00:47 ||* 26 | FILTER | | | | | ||* 27 | TABLE ACCESS FULL | G_TG | 262K| 6146K| 3864 (1)| 00:00:47 ||* 28 | INDEX RANGE SCAN | IDX_GR_TG_GR_ID | 9 | | 1 (0)| 00:00:01 ||* 29 | TABLE ACCESS BY INDEX ROWID | K_ID_GR_TG_RELA | 1 | 11 | 1 (0)| 00:00:01 || 30 | HASH GROUP BY | | 1 | 31 | 62111 (1)| 00:12:26 || 31 | VIEW | VM_NWVW_2 | 1 | 31 | 62110 (1)| 00:12:26 || 32 | HASH GROUP BY | | 1 | 97 | 62110 (1)| 00:12:26 || 33 | NESTED LOOPS | | 1 | 97 | 62109 (1)| 00:12:26 || 34 | NESTED LOOPS | | 9 | 97 | 62109 (1)| 00:12:26 ||* 35 | HASH JOIN | | 1 | 86 | 62108 (1)| 00:12:26 || 36 | VIEW | | 47 | 235 | 58243 (1)| 00:11:39 ||* 37 | FILTER | | | | | || 38 | HASH GROUP BY | | 47 | 6345 | 58243 (1)| 00:11:39 || 39 | VIEW | VM_NWVW_1 | 929 | 122K| 58243 (1)| 00:11:39 || 40 | HASH GROUP BY | | 929 | 67817 | 58243 (1)| 00:11:39 ||* 41 | TABLE ACCESS BY INDEX ROWID| K_AMR_GBTD_FLOW | 929 | 67817 | 58242 (1)| 00:11:39 ||* 42 | INDEX RANGE SCAN | IDX_TAG_NO1 | 5278K| | 3107 (1)| 00:00:38 ||* 43 | TABLE ACCESS BY INDEX ROWID | K_IC_DIM_VALUE | 1 | 37 | 1 (0)| 00:00:01 ||* 44 | INDEX RANGE SCAN | IDX_K_IC_DIM_VALUE_N2 | 1 | | 1 (0)| 00:00:01 || 45 | MERGE JOIN CARTESIAN | | 60220 | 4763K| 3865 (1)| 00:00:47 || 46 | NESTED LOOPS | | 1 | 41 | 2 (0)| 00:00:01 || 47 | NESTED LOOPS | | 2 | 41 | 2 (0)| 00:00:01 ||* 48 | TABLE ACCESS BY INDEX ROWID | K_ID_STAFF | 1 | 21 | 1 (0)| 00:00:01 ||* 49 | INDEX RANGE SCAN | IDX_K_ID_STAFF_N4 | 1 | | 1 (0)| 00:00:01 ||* 50 | INDEX RANGE SCAN | IDX_BUSS_NO | 2 | | 1 (0)| 00:00:01 ||* 51 | TABLE ACCESS BY INDEX ROWID | K_ID_GRID_BUSS | 1 | 20 | 1 (0)| 00:00:01 || 52 | BUFFER SORT | | 262K| 10M| 3864 (1)| 00:00:47 ||* 53 | VIEW | | 262K| 10M| 3863 (1)| 00:00:47 ||* 54 | FILTER | | | | | ||* 55 | TABLE ACCESS FULL | G_TG | 262K| 6146K| 3863 (1)| 00:00:47 ||* 56 | INDEX RANGE SCAN | IDX_GR_TG_GR_ID | 9 | | 1 (0)| 00:00:01 ||* 57 | TABLE ACCESS BY INDEX ROWID | K_ID_GR_TG_RELA | 1 | 11 | 1 (0)| 00:00:01 || 58 | HASH GROUP BY | | 1 | 150 | 11901 (1)| 00:02:23 || 59 | VIEW | VM_NWVW_4 | 1 | 150 | 11900 (1)| 00:02:23 || 60 | HASH GROUP BY | | 1 | 139 | 11900 (1)| 00:02:23 || 61 | NESTED LOOPS | | 1 | 139 | 11899 (1)| 00:02:23 || 62 | NESTED LOOPS | | 9 | 139 | 11899 (1)| 00:02:23 ||* 63 | HASH JOIN | | 1 | 128 | 11898 (1)| 00:02:23 || 64 | VIEW | | 267 | 12549 | 8033 (1)| 00:01:37 ||* 65 | FILTER | | | | | || 66 | HASH GROUP BY | | 267 | 47259 | 8033 (1)| 00:01:37 || 67 | VIEW | VM_NWVW_3 | 5333 | 921K| 8033 (1)| 00:01:37 || 68 | HASH GROUP BY | | 5333 | 572K| 8033 (1)| 00:01:37 ||* 69 | TABLE ACCESS FULL | K_AMR_LBTZ_FLOW | 5333 | 572K| 8032 (1)| 00:01:37 ||* 70 | TABLE ACCESS BY INDEX ROWID | K_IC_DIM_VALUE | 1 | 37 | 1 (0)| 00:00:01 ||* 71 | INDEX RANGE SCAN | IDX_K_IC_DIM_VALUE_N2 | 1 | | 1 (0)| 00:00:01 || 72 | MERGE JOIN CARTESIAN | | 60220 | 4763K| 3865 (1)| 00:00:47 || 73 | NESTED LOOPS | | 1 | 41 | 2 (0)| 00:00:01 || 74 | NESTED LOOPS | | 2 | 41 | 2 (0)| 00:00:01 ||* 75 | TABLE ACCESS BY INDEX ROWID | K_ID_STAFF | 1 | 21 | 1 (0)| 00:00:01 ||* 76 | INDEX RANGE SCAN | IDX_K_ID_STAFF_N4 | 1 | | 1 (0)| 00:00:01 ||* 77 | INDEX RANGE SCAN | IDX_BUSS_NO | 2 | | 1 (0)| 00:00:01 ||* 78 | TABLE ACCESS BY INDEX ROWID | K_ID_GRID_BUSS | 1 | 20 | 1 (0)| 00:00:01 || 79 | BUFFER SORT | | 262K| 10M| 3864 (1)| 00:00:47 ||* 80 | VIEW | | 262K| 10M| 3863 (1)| 00:00:47 ||* 81 | FILTER | | | | | ||* 82 | TABLE ACCESS FULL | G_TG | 262K| 6146K| 3863 (1)| 00:00:47 ||* 83 | INDEX RANGE SCAN | IDX_GR_TG_GR_ID | 9 | | 1 (0)| 00:00:01 ||* 84 | TABLE ACCESS BY INDEX ROWID | K_ID_GR_TG_RELA | 1 | 11 | 1 (0)| 00:00:01 || 85 | HASH GROUP BY | | 1 | 143 | 1187 (1)| 00:00:15 || 86 | VIEW | VM_NWVW_5 | 1 | 143 | 1186 (1)| 00:00:15 || 87 | HASH GROUP BY | | 1 | 149 | 1186 (1)| 00:00:15 ||* 88 | FILTER | | | | | ||* 89 | FILTER | | | | | ||* 90 | HASH JOIN | | 1 | 149 | 1184 (1)| 00:00:15 || 91 | NESTED LOOPS | | 1 | 76 | 4 (0)| 00:00:01 || 92 | NESTED LOOPS | | 1 | 76 | 4 (0)| 00:00:01 || 93 | NESTED LOOPS | | 1 | 52 | 3 (0)| 00:00:01 || 94 | NESTED LOOPS | | 1 | 41 | 2 (0)| 00:00:01 ||* 95 | TABLE ACCESS BY INDEX ROWID | K_ID_STAFF | 1 | 21 | 1 (0)| 00:00:01 ||* 96 | INDEX RANGE SCAN | IDX_K_ID_STAFF_N4 | 1 | | 1 (0)| 00:00:01 ||* 97 | TABLE ACCESS BY INDEX ROWID | K_ID_GRID_BUSS | 1 | 20 | 1 (0)| 00:00:01 ||* 98 | INDEX RANGE SCAN | IDX_BUSS_NO | 2 | | 1 (0)| 00:00:01 ||* 99 | TABLE ACCESS BY INDEX ROWID | K_ID_GR_TG_RELA | 1 | 11 | 1 (0)| 00:00:01 ||*100 | INDEX RANGE SCAN | IDX_GR_TG_GR_ID | 9 | | 1 (0)| 00:00:01 ||*101 | INDEX RANGE SCAN | IDX_G_TG_TG_ID | 1 | | 1 (0)| 00:00:01 ||*102 | TABLE ACCESS BY INDEX ROWID | G_TG | 1 | 24 | 1 (0)| 00:00:01 ||*103 | TABLE ACCESS BY INDEX ROWID | K_AMR_GBTD_FLOW | 19 | 1387 | 1180 (1)| 00:00:15 ||*104 | INDEX RANGE SCAN | IDX_TAG_NO1 | 106K| | 63 (0)| 00:00:01 ||*105 | TABLE ACCESS BY INDEX ROWID | K_IC_DIM_VALUE | 1 | 37 | 1 (0)| 00:00:01 ||*106 | INDEX RANGE SCAN | IDX_K_IC_DIM_VALUE_N2 | 1 | | 1 (0)| 00:00:01 || 107 | HASH GROUP BY | | 1 | 143 | 5049 (1)| 00:01:01 || 108 | VIEW | VM_NWVW_7 | 1 | 143 | 5048 (1)| 00:01:01 || 109 | HASH GROUP BY | | 1 | 131 | 5048 (1)| 00:01:01 || 110 | NESTED LOOPS | | 1 | 131 | 5047 (1)| 00:01:01 || 111 | NESTED LOOPS | | 9 | 131 | 5047 (1)| 00:01:01 ||*112 | HASH JOIN | | 1 | 120 | 5046 (1)| 00:01:01 || 113 | VIEW | | 1 | 39 | 1181 (1)| 00:00:15 ||*114 | FILTER | | | | | || 115 | HASH GROUP BY | | 1 | 169 | 1181 (1)| 00:00:15 || 116 | VIEW | VM_NWVW_6 | 19 | 3211 | 1181 (1)| 00:00:15 || 117 | HASH GROUP BY | | 19 | 2033 | 1181 (1)| 00:00:15 ||*118 | TABLE ACCESS BY INDEX ROWID| K_AMR_GBTD_FLOW | 19 | 2033 | 1180 (1)| 00:00:15 ||*119 | INDEX RANGE SCAN | IDX_TAG_NO1 | 106K| | 63 (0)| 00:00:01 ||*120 | TABLE ACCESS BY INDEX ROWID | K_IC_DIM_VALUE | 1 | 37 | 1 (0)| 00:00:01 ||*121 | INDEX RANGE SCAN | IDX_K_IC_DIM_VALUE_N2 | 1 | | 1 (0)| 00:00:01 || 122 | MERGE JOIN CARTESIAN | | 60220 | 4763K| 3865 (1)| 00:00:47 || 123 | NESTED LOOPS | | 1 | 41 | 2 (0)| 00:00:01 || 124 | NESTED LOOPS | | 2 | 41 | 2 (0)| 00:00:01 ||*125 | TABLE ACCESS BY INDEX ROWID | K_ID_STAFF | 1 | 21 | 1 (0)| 00:00:01 ||*126 | INDEX RANGE SCAN | IDX_K_ID_STAFF_N4 | 1 | | 1 (0)| 00:00:01 ||*127 | INDEX RANGE SCAN | IDX_BUSS_NO | 2 | | 1 (0)| 00:00:01 ||*128 | TABLE ACCESS BY INDEX ROWID | K_ID_GRID_BUSS | 1 | 20 | 1 (0)| 00:00:01 || 129 | BUFFER SORT | | 262K| 10M| 3864 (1)| 00:00:47 ||*130 | VIEW | | 262K| 10M| 3863 (1)| 00:00:47 ||*131 | FILTER | | | | | ||*132 | TABLE ACCESS FULL | G_TG | 262K| 6146K| 3863 (1)| 00:00:47 ||*133 | INDEX RANGE SCAN | IDX_GR_TG_GR_ID | 9 | | 1 (0)| 00:00:01 ||*134 | TABLE ACCESS BY INDEX ROWID | K_ID_GR_TG_RELA | 1 | 11 | 1 (0)| 00:00:01 |------------------------------------------------------------------------------------------------------------------- Predicate Information (identified by operation id):--------------------------------------------------- 1 - access("AA"."IDX_CODE"(+)="K"."IDX_CODE") 3 - access("K"."IDX_CODE"='PD0002' OR "K"."IDX_CODE"='PD0004' OR "K"."IDX_CODE"='PD0006' OR "K"."IDX_CODE"='PD0008' OR "K"."IDX_CODE"='PD0009' OR "K"."IDX_CODE"='PD0012' OR "K"."IDX_CODE"='PD0013' OR "K"."IDX_CODE"='PD0014') 4 - filter("AA"."IDX_CODE"(+)='PD0002' OR "AA"."IDX_CODE"(+)='PD0004' OR "AA"."IDX_CODE"(+)='PD0006' OR "AA"."IDX_CODE"(+)='PD0008' OR "AA"."IDX_CODE"(+)='PD0009' OR "AA"."IDX_CODE"(+)='PD0012' OR "AA"."IDX_CODE"(+)='PD0013' OR "AA"."IDX_CODE"(+)='PD0014') 6 - filter("C"."TAG_TYPE"='02') 7 - access("C"."TAG_NO"=:B1) 11 - access("TG_ID"=TO_NUMBER("F"."TG_ID") AND "ORG_NO"="F"."GDS_NO") 13 - filter("F"."GDS_NO" IS NOT NULL AND "F"."TG_ID" IS NOT NULL AND SUBSTR(REPLACE("FIRST_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm')) 14 - access("F"."TAG_NO"='TagPBDDY' OR "F"."TAG_NO"='TagPBGZ' OR "F"."TAG_NO"='TagPBYZBPH' OR "F"."TAG_NO"='TagPBZZ') 15 - filter("DIM_CODE"='dept') 16 - access("DIM_VALUE"=:B1) 20 - filter("A"."STAFF_NO"<>'无' AND "A"."DATA_OPER_TYPE"<>'D' AND "A"."STAFF_NO" IS NOT NULL) 21 - access("A"."AUTH_USER_NO"=:B1) filter("A"."AUTH_USER_NO"<>'无' AND "A"."AUTH_USER_NO" IS NOT NULL) 22 - access("B"."BUSS_NO"="A"."STAFF_NO") filter("B"."BUSS_NO"<>'无') 23 - filter("B"."DATA_OPER_TYPE"<>'D') 25 - filter("ORG_NO" IS NOT NULL) 26 - filter('无'<>:B1) 27 - filter("A"."PUB_PRIV_FLAG"='01' AND "RUN_STATUS_CODE"='01') 28 - access("B"."GR_ID"="R"."GR_ID") filter("R"."GR_ID" IS NOT NULL) 29 - filter("R"."DATA_OPER_TYPE"<>'D' AND "R"."TG_ID"="TG_ID") 35 - access("TG_ID"=TO_NUMBER("FF"."TG_ID") AND "ORG_NO"="FF"."GDS_NO") 37 - filter(COUNT("$vm_col_1")>=2) 41 - filter("F"."GDS_NO" IS NOT NULL AND "F"."TG_ID" IS NOT NULL AND SUBSTR(REPLACE("MAKE_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm')) 42 - access("F"."TAG_NO"='TagPBGZTD') 43 - filter("DIM_CODE"='dept') 44 - access("DIM_VALUE"=:B1) 48 - filter("A"."STAFF_NO"<>'无' AND "A"."DATA_OPER_TYPE"<>'D' AND "A"."STAFF_NO" IS NOT NULL) 49 - access("A"."AUTH_USER_NO"=:B1) filter("A"."AUTH_USER_NO"<>'无' AND "A"."AUTH_USER_NO" IS NOT NULL) 50 - access("B"."BUSS_NO"="A"."STAFF_NO") filter("B"."BUSS_NO"<>'无') 51 - filter("B"."DATA_OPER_TYPE"<>'D') 53 - filter("ORG_NO" IS NOT NULL) 54 - filter('无'<>:B1) 55 - filter("A"."PUB_PRIV_FLAG"='01' AND "RUN_STATUS_CODE"='01') 56 - access("B"."GR_ID"="R"."GR_ID") filter("R"."GR_ID" IS NOT NULL) 57 - filter("R"."DATA_OPER_TYPE"<>'D' AND "R"."TG_ID"="TG_ID") 63 - access("TG_ID"=TO_NUMBER("FF"."TG_ID") AND "ORG_NO"="FF"."GDS_NO") 65 - filter(COUNT("$vm_col_1")>=3) 69 - filter("F"."GDS_NO" IS NOT NULL AND "F"."TG_ID" IS NOT NULL AND SUBSTR(REPLACE("FIRST_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm') AND "F"."TAG_NO"='TagLBTZ') 70 - filter("DIM_CODE"='dept') 71 - access("DIM_VALUE"=:B1) 75 - filter("A"."STAFF_NO"<>'无' AND "A"."DATA_OPER_TYPE"<>'D' AND "A"."STAFF_NO" IS NOT NULL) 76 - access("A"."AUTH_USER_NO"=:B1) filter("A"."AUTH_USER_NO"<>'无' AND "A"."AUTH_USER_NO" IS NOT NULL) 77 - access("B"."BUSS_NO"="A"."STAFF_NO") filter("B"."BUSS_NO"<>'无') 78 - filter("B"."DATA_OPER_TYPE"<>'D') 80 - filter("ORG_NO" IS NOT NULL) 81 - filter('无'<>:B1) 82 - filter("A"."PUB_PRIV_FLAG"='01' AND "RUN_STATUS_CODE"='01') 83 - access("B"."GR_ID"="R"."GR_ID") filter("R"."GR_ID" IS NOT NULL) 84 - filter("R"."DATA_OPER_TYPE"<>'D' AND "R"."TG_ID"="TG_ID") 88 - filter( (SELECT "P_DIM_ID" FROM CPSS."K_IC_DIM_VALUE" "K_IC_DIM_VALUE" WHERE "DIM_VALUE"=:B1 AND "DIM_CODE"='dept') IS NOT NULL) 89 - filter('无'<>:B1) 90 - access("TG_ID"=TO_NUMBER("F"."TG_ID")) 95 - filter("A"."STAFF_NO"<>'无' AND "A"."DATA_OPER_TYPE"<>'D' AND "A"."STAFF_NO" IS NOT NULL) 96 - access("A"."AUTH_USER_NO"=:B1) filter("A"."AUTH_USER_NO"<>'无' AND "A"."AUTH_USER_NO" IS NOT NULL) 97 - filter("B"."DATA_OPER_TYPE"<>'D') 98 - access("B"."BUSS_NO"="A"."STAFF_NO") filter("B"."BUSS_NO"<>'无') 99 - filter("R"."DATA_OPER_TYPE"<>'D') 100 - access("B"."GR_ID"="R"."GR_ID") filter("R"."GR_ID" IS NOT NULL) 101 - access("R"."TG_ID"="TG_ID") 102 - filter("A"."PUB_PRIV_FLAG"='01' AND "RUN_STATUS_CODE"='01') 103 - filter("F"."GDS_NO" IS NOT NULL AND "F"."TG_ID" IS NOT NULL AND SUBSTR(REPLACE("MAKE_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm')) 104 - access("F"."TAG_NO"='TagZBBS') 105 - filter("DIM_CODE"='dept') 106 - access("DIM_VALUE"=:B1) 112 - access("TG_ID"=TO_NUMBER("FF"."TG_ID") AND "ORG_NO"="FF"."GDS_NO") 114 - filter(COUNT("$vm_col_1")>=2) 118 - filter("F"."GDS_NO" IS NOT NULL AND "F"."TG_ID" IS NOT NULL AND SUBSTR(REPLACE("MAKE_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm')) 119 - access("F"."TAG_NO"='TagZBBS') 120 - filter("DIM_CODE"='dept') 121 - access("DIM_VALUE"=:B1) 125 - filter("A"."STAFF_NO"<>'无' AND "A"."DATA_OPER_TYPE"<>'D' AND "A"."STAFF_NO" IS NOT NULL) 126 - access("A"."AUTH_USER_NO"=:B1) filter("A"."AUTH_USER_NO"<>'无' AND "A"."AUTH_USER_NO" IS NOT NULL) 127 - access("B"."BUSS_NO"="A"."STAFF_NO") filter("B"."BUSS_NO"<>'无') 128 - filter("B"."DATA_OPER_TYPE"<>'D') 130 - filter("ORG_NO" IS NOT NULL) 131 - filter('无'<>:B1) 132 - filter("A"."PUB_PRIV_FLAG"='01' AND "RUN_STATUS_CODE"='01') 133 - access("B"."GR_ID"="R"."GR_ID") filter("R"."GR_ID" IS NOT NULL) 134 - filter("R"."DATA_OPER_TYPE"<>'D' AND "R"."TG_ID"="TG_ID") 仔细阅读sql我们发现该sql有一个重复出现的查询体(SELECT T.ORG_NO, T.TG_ID, A.AUTH_USER_NO FROM K_ID_G_TG T, K_ID_GR_TG_RELA R, K_ID_GRID_BUSS B, K_ID_STAFF A WHERE R.DATA_OPER_TYPE != 'D' AND R.TG_ID = T.TG_ID AND B.GR_ID = R.GR_ID AND B.DATA_OPER_TYPE != 'D' AND A.DATA_OPER_TYPE != 'D' AND A.STAFF_NO <> '无' AND A.STAFF_NO IS NOT NULL AND B.BUSS_NO = A.STAFF_NO AND A.AUTH_USER_NO IS NOT NULL AND A.AUTH_USER_NO != '无') F1共出现了5次。对于这类重复出现的查询体，我们通常用with进行改写从执行计划看到访问G_TG表，才发现K_ID_G_TG表对应的是一个视图。create or replace view k_id_g_tg asselect "TG_ID","ORG_NO","TG_NO","TG_NAME","TG_CAP","INST_ADDR","CHG_DATE","PUB_PRIV_FLAG","RUN_STATUS_CODE","REMARKS","AREA_TYPE","PF","IS_EXCE_TG","RATE_TIME","DWDM","DATA_TIME" from (select tg_id, (select p_dim_id from k_ic_dim_value where dim_value = a.org_no and dim_code = 'dept') org_no, tg_no, tg_name, tg_cap, inst_addr, chg_date, pub_priv_flag, run_status_code, remark remarks, area_type, pf, (select is_exce_tg from k_id_g_tg_jp where tg_id=a.tg_id and rownum=1) is_exce_tg、, (select rate_time from k_id_g_tg_jp where tg_id=a.tg_id and rownum=1) rate_time, org_no dwdm, sysdate data_time from g_tg a where a.pub_priv_flag = '01' and run_status_code = '01') where org_no is not null;查看视图，视图中出现的org_no、is_exce_tg、rate_time字段，我们根本用不上,查询基表足矣。所以with可以改写如下：with F1 as(SELECT T.ORG_NO, T.TG_ID, A.AUTH_USER_NO FROM g_tg T, K_ID_GR_TG_RELA R, K_ID_GRID_BUSS B, K_ID_STAFF A WHERE R.DATA_OPER_TYPE != 'D' AND R.TG_ID = T.TG_ID AND B.GR_ID = R.GR_ID AND B.DATA_OPER_TYPE != 'D' AND A.DATA_OPER_TYPE != 'D' AND A.STAFF_NO <> '无' AND A.STAFF_NO IS NOT NULL AND B.BUSS_NO = A.STAFF_NO AND A.AUTH_USER_NO IS NOT NULL AND A.AUTH_USER_NO != '无' AND A.AUTH_USER_NO = 'P6xxxxxxx1' AND T.pub_priv_flag = '01' and T.run_status_code = '01')SELECT K.IDX_CODE, NVL(AA.COUNT, 0) VALUE FROM K_AMR_CONFIG K LEFT JOIN ( SELECT F.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT F.TG_ID) COUNT, (SELECT C.IDX_CODE FROM K_AMR_CONFIG C WHERE C.TAG_NO = F.TAG_NO AND C.TAG_TYPE = '02') IDX_CODE FROM K_AMR_EXCEP_FLOW F, F1 WHERE F1.TG_ID = F.TG_ID AND F1.ORG_NO = F.GDS_NO AND F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO IN ('TagPBGZ', 'TagPBZZ', 'TagPBYZBPH', 'TagPBDDY') AND SUBSTR(REPLACE(FIRST_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F1.AUTH_USER_NO, F.GDS_NO, F.TAG_NO UNION ALL SELECT FF.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT FF.TG_ID) COUNT, 'PD0009' IDX_CODE FROM (SELECT F.GDS_NO, F.TG_ID FROM K_AMR_GBTD_FLOW F WHERE F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagPBGZTD' AND SUBSTR(REPLACE(MAKE_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F.GDS_NO, F.TG_ID HAVING COUNT(DISTINCT F.MSG_ID) >= 2) FF, F1 WHERE F1.TG_ID = FF.TG_ID AND F1.ORG_NO = FF.GDS_NO GROUP BY F1.AUTH_USER_NO, FF.GDS_NO UNION ALL SELECT FF.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT FF.DEVICE_NAME) COUNT, 'PD0012' IDX_CODE FROM (SELECT F.GDS_NO, F.TG_ID, DEVICE_NAME, COUNT(DISTINCT F.MSG_ID) CNT FROM K_AMR_LBTZ_FLOW F WHERE F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagLBTZ' AND SUBSTR(REPLACE(FIRST_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F.GDS_NO, F.TG_ID, DEVICE_NAME HAVING COUNT(DISTINCT F.MSG_ID) >= 3) FF, F1 WHERE F1.TG_ID = FF.TG_ID AND F1.ORG_NO = FF.GDS_NO GROUP BY F1.AUTH_USER_NO, FF.GDS_NO UNION ALL SELECT F.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT F.MSG_ID) COUNT, 'PD0013' IDX_CODE FROM K_AMR_GBTD_FLOW F, F1 WHERE F1.TG_ID = F.TG_ID AND F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagZBBS' AND SUBSTR(REPLACE(MAKE_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F1.AUTH_USER_NO, F.GDS_NO UNION ALL SELECT FF.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT FF.DEVICE_NAME) COUNT, 'PD0014' IDX_CODE FROM (SELECT F.GDS_NO, F.TG_ID, DEVICE_NAME, COUNT(DISTINCT F.MSG_ID) CNT FROM K_AMR_GBTD_FLOW F WHERE F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagZBBS' AND SUBSTR(REPLACE(MAKE_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F.GDS_NO, F.TG_ID, DEVICE_NAME HAVING COUNT(DISTINCT F.MSG_ID) >= 2) FF, F1 WHERE F1.TG_ID = FF.TG_ID AND F1.ORG_NO = FF.GDS_NO GROUP BY F1.AUTH_USER_NO, FF.GDS_NO ) AA ON AA.IDX_CODE = K.IDX_CODE WHERE K.IDX_CODE IN ('PD0002', 'PD0004', 'PD0006', 'PD0008', 'PD0009', 'PD0012', 'PD0013', 'PD0014');再次执行查询，还是查不动。我们分别对union all上下关联的sql进行分析SELECT FF.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT FF.TG_ID) COUNT, 'PD0009' IDX_CODE FROM (SELECT F.GDS_NO, F.TG_ID FROM K_AMR_GBTD_FLOW F WHERE F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagPBGZTD' AND SUBSTR(REPLACE(MAKE_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F.GDS_NO, F.TG_ID HAVING COUNT(DISTINCT F.MSG_ID) >= 2) FF, F1 WHERE F1.TG_ID = FF.TG_ID AND F1.ORG_NO = FF.GDS_NO GROUP BY F1.AUTH_USER_NO, FF.GDS_NO该步骤执行慢。从执行计划中看出，走的是TAG_NO的索引。通过dba_tab_col_statistics发现TAG_NO distinct值为2。全表数据量约为500w。分析其他过滤条件MAKE_TIME列，数据比较倾斜，201910月数据为200w，其他月份数据量偏少，最高只有10w左右。所以删除了原先TAG_NO列索引 drop index cpss.IDX_TAG_NO1;创建函数索引create index cpss.idx_MAKE_TIME on cpss.K_AMR_GBTD_FLOW(substr(replace(MAKE_TIME, '-', ''), 1, 6),TAG_NO);执行计划如下： Plan hash value: 668798141 ------------------------------------------------------------------------------------------------------------------------| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |------------------------------------------------------------------------------------------------------------------------| 0 | SELECT STATEMENT | | 8 | 256 | 9039 (1)| 00:01:49 || 1 | TEMP TABLE TRANSFORMATION | | | | | || 2 | LOAD AS SELECT | SYS_TEMP_0FD9FD2FB_8ABCBB03 | | | | || 3 | NESTED LOOPS | | 1 | 76 | 4 (0)| 00:00:01 || 4 | NESTED LOOPS | | 1 | 76 | 4 (0)| 00:00:01 || 5 | NESTED LOOPS | | 1 | 52 | 3 (0)| 00:00:01 || 6 | NESTED LOOPS | | 1 | 41 | 2 (0)| 00:00:01 ||* 7 | TABLE ACCESS BY INDEX ROWID | K_ID_STAFF | 1 | 21 | 1 (0)| 00:00:01 ||* 8 | INDEX RANGE SCAN | IDX_K_ID_STAFF_N4 | 1 | | 1 (0)| 00:00:01 ||* 9 | TABLE ACCESS BY INDEX ROWID | K_ID_GRID_BUSS | 1 | 20 | 1 (0)| 00:00:01 ||* 10 | INDEX RANGE SCAN | IDX_BUSS_NO | 2 | | 1 (0)| 00:00:01 ||* 11 | TABLE ACCESS BY INDEX ROWID | K_ID_GR_TG_RELA | 1 | 11 | 1 (0)| 00:00:01 ||* 12 | INDEX RANGE SCAN | IDX_GR_TG_GR_ID | 9 | | 1 (0)| 00:00:01 ||* 13 | INDEX RANGE SCAN | IDX_G_TG_TG_ID | 1 | | 1 (0)| 00:00:01 ||* 14 | TABLE ACCESS BY INDEX ROWID | G_TG | 1 | 24 | 1 (0)| 00:00:01 ||* 15 | HASH JOIN OUTER | | 8 | 256 | 9035 (1)| 00:01:49 || 16 | INLIST ITERATOR | | | | | ||* 17 | INDEX RANGE SCAN | K_AMR_CONFIG_IDX_CODE | 8 | 56 | 1 (0)| 00:00:01 ||* 18 | VIEW | | 5 | 125 | 9034 (1)| 00:01:49 || 19 | UNION-ALL | | | | | ||* 20 | TABLE ACCESS BY INDEX ROWID | K_AMR_CONFIG | 1 | 19 | 1 (0)| 00:00:01 ||* 21 | INDEX RANGE SCAN | K_AMR_CONFIG_TAG_NO | 2 | | 1 (0)| 00:00:01 || 22 | SORT GROUP BY | | 1 | 68 | 4 (25)| 00:00:01 || 23 | NESTED LOOPS | | 1 | 68 | 3 (0)| 00:00:01 || 24 | NESTED LOOPS | | 16114 | 68 | 3 (0)| 00:00:01 || 25 | VIEW | | 1 | 28 | 2 (0)| 00:00:01 || 26 | TABLE ACCESS FULL | SYS_TEMP_0FD9FD2FB_8ABCBB03 | 1 | 28 | 2 (0)| 00:00:01 ||* 27 | INDEX RANGE SCAN | IDX_GDS_NO | 16114 | | 1 (0)| 00:00:01 ||* 28 | TABLE ACCESS BY INDEX ROWID | K_AMR_EXCEP_FLOW | 1 | 40 | 1 (0)| 00:00:01 || 29 | HASH GROUP BY | | 1 | 31 | 332 (2)| 00:00:04 || 30 | VIEW | VW_DAG_1 | 1 | 31 | 331 (1)| 00:00:04 || 31 | HASH GROUP BY | | 1 | 33 | 331 (1)| 00:00:04 ||* 32 | HASH JOIN | | 1 | 33 | 330 (1)| 00:00:04 || 33 | VIEW | | 1 | 28 | 2 (0)| 00:00:01 || 34 | TABLE ACCESS FULL | SYS_TEMP_0FD9FD2FB_8ABCBB03 | 1 | 28 | 2 (0)| 00:00:01 || 35 | VIEW | | 47 | 235 | 328 (1)| 00:00:04 ||* 36 | FILTER | | | | | || 37 | HASH GROUP BY | | 47 | 6345 | 328 (1)| 00:00:04 || 38 | VIEW | VW_DAG_0 | 929 | 122K| 328 (1)| 00:00:04 || 39 | HASH GROUP BY | | 929 | 55740 | 328 (1)| 00:00:04 ||* 40 | TABLE ACCESS BY INDEX ROWID| K_AMR_GBTD_FLOW | 929 | 55740 | 327 (1)| 00:00:04 ||* 41 | INDEX RANGE SCAN | IDX_MAKE_TIME | 23042 | | 132 (0)| 00:00:02 || 42 | HASH GROUP BY | | 1 | 150 | 8037 (1)| 00:01:37 || 43 | VIEW | VW_DAG_3 | 1 | 150 | 8036 (1)| 00:01:37 || 44 | HASH GROUP BY | | 1 | 75 | 8036 (1)| 00:01:37 ||* 45 | HASH JOIN | | 1 | 75 | 8035 (1)| 00:01:37 || 46 | VIEW | | 1 | 28 | 2 (0)| 00:00:01 || 47 | TABLE ACCESS FULL | SYS_TEMP_0FD9FD2FB_8ABCBB03 | 1 | 28 | 2 (0)| 00:00:01 || 48 | VIEW | | 267 | 12549 | 8033 (1)| 00:01:37 ||* 49 | FILTER | | | | | || 50 | HASH GROUP BY | | 267 | 47259 | 8033 (1)| 00:01:37 || 51 | VIEW | VW_DAG_2 | 5333 | 921K| 8033 (1)| 00:01:37 || 52 | HASH GROUP BY | | 5333 | 572K| 8033 (1)| 00:01:37 ||* 53 | TABLE ACCESS FULL | K_AMR_LBTZ_FLOW | 5333 | 572K| 8032 (1)| 00:01:37 || 54 | HASH GROUP BY | | 1 | 143 | 330 (1)| 00:00:04 || 55 | VIEW | VW_DAG_4 | 1 | 143 | 329 (1)| 00:00:04 || 56 | HASH GROUP BY | | 1 | 76 | 329 (1)| 00:00:04 || 57 | NESTED LOOPS | | 1 | 76 | 328 (0)| 00:00:04 || 58 | VIEW | | 1 | 16 | 2 (0)| 00:00:01 || 59 | TABLE ACCESS FULL | SYS_TEMP_0FD9FD2FB_8ABCBB03 | 1 | 28 | 2 (0)| 00:00:01 ||* 60 | TABLE ACCESS BY INDEX ROWID | K_AMR_GBTD_FLOW | 1 | 60 | 326 (0)| 00:00:04 ||* 61 | INDEX RANGE SCAN | IDX_MAKE_TIME | 23042 | | 132 (0)| 00:00:02 || 62 | HASH GROUP BY | | 1 | 143 | 332 (2)| 00:00:04 || 63 | VIEW | VW_DAG_6 | 1 | 143 | 331 (1)| 00:00:04 || 64 | HASH GROUP BY | | 1 | 67 | 331 (1)| 00:00:04 ||* 65 | HASH JOIN | | 1 | 67 | 330 (1)| 00:00:04 || 66 | VIEW | | 1 | 28 | 2 (0)| 00:00:01 || 67 | TABLE ACCESS FULL | SYS_TEMP_0FD9FD2FB_8ABCBB03 | 1 | 28 | 2 (0)| 00:00:01 || 68 | VIEW | | 1 | 39 | 328 (1)| 00:00:04 ||* 69 | FILTER | | | | | || 70 | HASH GROUP BY | | 1 | 169 | 328 (1)| 00:00:04 || 71 | VIEW | VW_DAG_5 | 19 | 3211 | 328 (1)| 00:00:04 || 72 | HASH GROUP BY | | 19 | 1786 | 328 (1)| 00:00:04 ||* 73 | TABLE ACCESS BY INDEX ROWID| K_AMR_GBTD_FLOW | 19 | 1786 | 327 (1)| 00:00:04 ||* 74 | INDEX RANGE SCAN | IDX_MAKE_TIME | 23042 | | 132 (0)| 00:00:02 |------------------------------------------------------------------------------------------------------------------------ Predicate Information (identified by operation id):--------------------------------------------------- 7 - filter("A"."STAFF_NO"<>'无' AND "A"."DATA_OPER_TYPE"<>'D' AND "A"."STAFF_NO" IS NOT NULL) 8 - access("A"."AUTH_USER_NO"='P68120521') filter("A"."AUTH_USER_NO"<>'无') 9 - filter("B"."DATA_OPER_TYPE"<>'D') 10 - access("B"."BUSS_NO"="A"."STAFF_NO") filter("B"."BUSS_NO"<>'无') 11 - filter("R"."DATA_OPER_TYPE"<>'D') 12 - access("B"."GR_ID"="R"."GR_ID") filter("R"."GR_ID" IS NOT NULL) 13 - access("R"."TG_ID"="T"."TG_ID") 14 - filter("T"."PUB_PRIV_FLAG"='01' AND "T"."RUN_STATUS_CODE"='01') 15 - access("AA"."IDX_CODE"(+)="K"."IDX_CODE") 17 - access("K"."IDX_CODE"='PD0002' OR "K"."IDX_CODE"='PD0004' OR "K"."IDX_CODE"='PD0006' OR "K"."IDX_CODE"='PD0008' OR "K"."IDX_CODE"='PD0009' OR "K"."IDX_CODE"='PD0012' OR "K"."IDX_CODE"='PD0013' OR "K"."IDX_CODE"='PD0014') 18 - filter("AA"."IDX_CODE"(+)='PD0002' OR "AA"."IDX_CODE"(+)='PD0004' OR "AA"."IDX_CODE"(+)='PD0006' OR "AA"."IDX_CODE"(+)='PD0008' OR "AA"."IDX_CODE"(+)='PD0009' OR "AA"."IDX_CODE"(+)='PD0012' OR "AA"."IDX_CODE"(+)='PD0013' OR "AA"."IDX_CODE"(+)='PD0014') 20 - filter("C"."TAG_TYPE"='02') 21 - access("C"."TAG_NO"=:B1) 27 - access("F1"."ORG_NO"="F"."GDS_NO") filter("F"."GDS_NO" IS NOT NULL) 28 - filter("F"."TG_ID" IS NOT NULL AND ("F"."TAG_NO"='TagPBDDY' OR "F"."TAG_NO"='TagPBGZ' OR "F"."TAG_NO"='TagPBYZBPH' OR "F"."TAG_NO"='TagPBZZ') AND SUBSTR(REPLACE("FIRST_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm') AND "F1"."TG_ID"=TO_NUMBER("F"."TG_ID")) 32 - access("F1"."TG_ID"=TO_NUMBER("FF"."TG_ID") AND "F1"."ORG_NO"="FF"."GDS_NO") 36 - filter(COUNT("ITEM_1")>=2) 40 - filter("F"."GDS_NO" IS NOT NULL AND "F"."TG_ID" IS NOT NULL AND "F"."TAG_NO"='TagPBGZTD') 41 - access(SUBSTR(REPLACE("MAKE_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm')) 45 - access("F1"."TG_ID"=TO_NUMBER("FF"."TG_ID") AND "F1"."ORG_NO"="FF"."GDS_NO") 49 - filter(COUNT("ITEM_1")>=3) 53 - filter("F"."GDS_NO" IS NOT NULL AND "F"."TG_ID" IS NOT NULL AND SUBSTR(REPLACE("FIRST_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm') AND "F"."TAG_NO"='TagLBTZ') 60 - filter("F"."GDS_NO" IS NOT NULL AND "F"."TG_ID" IS NOT NULL AND "F"."TAG_NO"='TagZBBS' AND "F1"."TG_ID"=TO_NUMBER("F"."TG_ID")) 61 - access(SUBSTR(REPLACE("MAKE_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm')) 65 - access("F1"."TG_ID"=TO_NUMBER("FF"."TG_ID") AND "F1"."ORG_NO"="FF"."GDS_NO") 69 - filter(COUNT("ITEM_1")>=2) 73 - filter("F"."GDS_NO" IS NOT NULL AND "F"."TG_ID" IS NOT NULL AND "F"."TAG_NO"='TagZBBS') 74 - access(SUBSTR(REPLACE("MAKE_TIME",'-',''),1,6)=TO_CHAR(SYSDATE@!,'yyyymm')) 3秒内出结果，业务正常。该sql还存在优化空间，K_AMR_LBTZ_FLOW表也可以加上同样的函数索引。create index cpss.idx_MAKE_TIME on cpss.K_AMR_LBTZ_FLOW(substr(replace(FIRST_TIME, '-', ''), 1, 6),TAG_NO);将K_AMR_GBTD_FLOW表重复的查询同样用with改写针对SELECT FF.GDS_NO, F1.AUTH_USER_NO, COUNT(DISTINCT FF.TG_ID) COUNT, 'PD0009' IDX_CODE FROM (SELECT F.GDS_NO, F.TG_ID FROM K_AMR_GBTD_FLOW F WHERE F.TG_ID IS NOT NULL AND F.GDS_NO IS NOT NULL AND F.TAG_NO = 'TagPBGZTD' AND SUBSTR(REPLACE(MAKE_TIME, '-', ''), 1, 6) = TO_CHAR(SYSDATE, 'yyyymm') GROUP BY F.GDS_NO, F.TG_ID HAVING COUNT(DISTINCT F.MSG_ID) >= 2) FF, F1 WHERE F1.TG_ID = FF.TG_ID AND F1.ORG_NO = FF.GDS_NO GROUP BY F1.AUTH_USER_NO, FF.GDS_NO这条sql语句，我们可以在索引上加上更多的列，减少回表操作(但是维护索引中的各个字段，将会增加其他dml操作的时间)create index cpss.idx_MAKE_TIME on cpss.K_AMR_GBTD_FLOW(substr(replace(MAKE_TIME, '-', ''), 1, 6),TAG_NO,GDS_NO,TG_ID,MSG_ID); |
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