Oracle11g 优化Oracle查询
我创建了一个查询，通常需要7到11秒才能返回一个集合，我想让它更快。我知道我必须使用if索引来实现这一点，所以我已经正确地使用了它们。不幸的是，它将给出相同的执行时间：以下是我使用的查询：Oracle11g 优化Oracle查询,oracle11g,Oracle11g,我创建了一个查询，通常需要7到11秒才能返回一个集合，我想让它更快。我知道我必须使用if索引来实现这一点，所以我已经正确地使用了它们。不幸的是，它将给出相同的执行时间：以下是我使用的查询： WITH trackin8080 AS ( SELECT DISTINCT c.containerid , c.containername , hml.historyid , hml.wiptrackinggroupkeyid , hml.qty , hml
WITH trackin8080 AS
(
SELECT DISTINCT
c.containerid
, c.containername
, hml.historyid
, hml.wiptrackinggroupkeyid
, hml.qty
, hml.txndate
FROM CONTAINER c
JOIN
(
SELECT
MAX(wwl.wiptrackinggroupkeyid) OVER (PARTITION BY wwl.containerid) wiptrackiggroupkeyid
, wwl.containerid
FROM
(
SELECT
wl.wiptrackinggroupkeyid
, wl.containerid
FROM a_wiplot wl
WHERE wl.specname IN ('8080_STAB_BAKE_1_FT')
AND wl.workflowname IN ('6_2B2R-DP_WIP') AND wl.containername LIKE :lotid AND wl.containername NOT LIKE '%TEST%'
UNION ALL
SELECT
wl.wiptrackinggroupkeyid
, wl.containerid
FROM a_wiplothistory wl
WHERE wl.specname IN ('8080_STAB_BAKE_1_FT')
AND wl.workflowname IN ('6_2B2R-DP_WIP') AND wl.containername LIKE :lotid AND wl.containername NOT LIKE '%TEST%'
)wwl
GROUP BY wwl.containerid, wwl.wiptrackinggroupkeyid
)wl ON c.containerid = wl.containerid
JOIN historymainline hml ON c.containerid = hml.historyid AND hml.cdoname = 'TrackInLot' AND hml.specname IN ('8080_STAB_BAKE_1_FT') AND wl.wiptrackiggroupkeyid = hml.wiptrackinggroupkeyid --AND hml.txndate > TRUNC(SYSDATE - 7)
WHERE hml.workflowname IN ('6_2B2R-DP_WIP') AND c.containername LIKE :lotid
), trackout8080 AS
(
SELECT DISTINCT
c.containerid
, c.containername
, hml.historyid
, hml.historymainlineid
, hml.txndate
, hml.qty
FROM trackin8080 ti
INNER JOIN container c ON ti.containerid = c.containerid
INNER JOIN product p ON c.productid = p.productid
INNER JOIN historymainline hml ON c.containerid = hml.historyid AND hml.cdoname = 'TrackOutLot' AND hml.specname IN ('8080_STAB_BAKE_1_FT')
WHERE hml.workflowname IN ('6_2B2R-DP_WIP') AND c.containername LIKE :lotid
), movein8527 AS
(
SELECT DISTINCT
c.containerid
, c.containername
, hml.historyid
, hml.historymainlineid
, hml.txndate
, hml.shiftname
, hml.employeeid
, hml.qty
, p.device
, p.brandname
, hml.specname
, hml.comments
FROM trackin8080 ti
INNER JOIN container c ON ti.containerid = c.containerid
INNER JOIN product p ON c.productid = p.productid
INNER JOIN historymainline hml ON c.containerid = hml.historyid
WHERE (hml.callbycdoname IN ('TestWIPMain', 'TestWIPMoveNonStd') AND hml.cdoname = 'MoveInLot' AND hml.specname IN ('8527_STAGE_BAKE_FT'))
AND hml.workflowname IN ('6_2B2R-DP_WIP') AND c.containername LIKE :lotid
), moveout8925 AS
(
SELECT DISTINCT
c.containerid
, c.containername
, hml.historyid
, hml.historymainlineid
, hml.txndate
, hml.shiftname
, hml.employeeid
, hml.qty
, p.device
, p.brandname
, hml.specname
, hml.comments
FROM trackin8080 ti
INNER JOIN container c ON ti.containerid = c.containerid
INNER JOIN product p ON c.productid = p.productid
INNER JOIN
(
SELECT
MAX(wwl.wiptrackinggroupkeyid) OVER (PARTITION BY wwl.containerid) wiptrackiggroupkeyid
, wwl.containerid
FROM
(
SELECT
wl.wiptrackinggroupkeyid
, wl.containerid
FROM a_wiplot wl
WHERE wl.specname IN ('8925_2ND_RM_TST_SOT_2_FT')
AND wl.workflowname IN ('6_2B2R-DP_WIP') AND wl.containername LIKE :lotid AND wl.containername NOT LIKE '%TEST%'
UNION ALL
SELECT
wl.wiptrackinggroupkeyid
, wl.containerid
FROM a_wiplothistory wl
WHERE wl.specname IN ('8925_2ND_RM_TST_SOT_2_FT')
AND wl.workflowname IN ('6_2B2R-DP_WIP') AND wl.containername LIKE :lotid AND wl.containername NOT LIKE '%TEST%'
)wwl
GROUP BY wwl.containerid, wwl.wiptrackinggroupkeyid
)wl ON c.containerid = wl.containerid
INNER JOIN historymainline hml ON c.containerid = hml.historyid AND wl.wiptrackiggroupkeyid = hml.wiptrackinggroupkeyid
WHERE (hml.callbycdoname IN ('LotMoveOut', 'MoveLot', 'TestWIPMoveNonStd') AND hml.cdoname = 'CreateFirstInsertion' AND hml.specname IN ('8925_2ND_RM_TST_SOT_2_FT'))
AND hml.workflowname IN ('6_2B2R-DP_WIP') AND c.containername LIKE :lotid
), trackin8090 AS
(
SELECT DISTINCT
c.containerid
, c.containername
, hml.historyid
, hml.wiptrackinggroupkeyid
, hml.qty
, hml.txndate
FROM CONTAINER c
JOIN
(
SELECT
MAX(wwl.wiptrackinggroupkeyid) OVER (PARTITION BY wwl.containerid) wiptrackiggroupkeyid
, wwl.containerid
FROM
(
SELECT
wl.wiptrackinggroupkeyid
, wl.containerid
FROM a_wiplot wl
WHERE wl.specname IN ('8090_2ND_BAKE_IN_OVEN_SOT_FT')
AND wl.workflowname IN ('6_2B2R-DP_WIP') AND wl.containername LIKE :lotid AND wl.containername NOT LIKE '%TEST%'
UNION ALL
SELECT
wl.wiptrackinggroupkeyid
, wl.containerid
FROM a_wiplothistory wl
WHERE wl.specname IN ('8090_2ND_BAKE_IN_OVEN_SOT_FT')
AND wl.workflowname IN ('6_2B2R-DP_WIP') AND wl.containername LIKE :lotid AND wl.containername NOT LIKE '%TEST%'
)wwl
GROUP BY wwl.containerid, wwl.wiptrackinggroupkeyid
)wl ON c.containerid = wl.containerid
JOIN historymainline hml ON c.containerid = hml.historyid AND hml.cdoname = 'TrackInLot' AND hml.specname IN ('8090_2ND_BAKE_IN_OVEN_SOT_FT') AND wl.wiptrackiggroupkeyid = hml.wiptrackinggroupkeyid --AND hml.txndate > TRUNC(SYSDATE - 7)
WHERE hml.workflowname IN ('6_2B2R-DP_WIP') AND c.containername LIKE :lotid
), trackout8090 AS
(
SELECT DISTINCT
c.containerid
, c.containername
, hml.historyid
, hml.historymainlineid
, hml.txndate
, hml.qty
FROM trackin8080 ti
INNER JOIN container c ON ti.containerid = c.containerid
INNER JOIN product p ON c.productid = p.productid
INNER JOIN historymainline hml ON c.containerid = hml.historyid AND hml.cdoname = 'TrackOutLot' AND hml.specname IN ('8090_2ND_BAKE_IN_OVEN_SOT_FT')
WHERE hml.workflowname IN ('6_2B2R-DP_WIP') AND c.containername LIKE :lotid
)
SELECT
ti8080.containername
, ti8080.qty qtyatb1
, to_char(ti8080.txndate, 'MM/DD/YYYY HH:MI:SS PM') trackindateb1
, to_char(ti8080.txndate + 12/24, 'MM/DD/YYYY HH:MI:SS PM') FCSTDOvenOutB1
, NVL(to_char(to8080.txndate, 'MM/DD/YYYY HH:MI:SS PM'), '-') trackoutdateb1
, CASE WHEN to8080.txndate IS NULL THEN
'-'
ELSE
to_char(ROUND((to8080.txndate - ti8080.txndate) * 24, 4))
END AS elapsedtimebake1
, NVL(to_char(mi8527.qty), '-') qtyatstaging
, NVL(to_char(mi8527.txndate, 'MM/DD/YYYY HH:MI:SS PM'), '-') moveinto8527
, NVL(to_char(mi8527.txndate + 24/24, 'MM/DD/YYYY HH:MI:SS PM'), '-') FCSTDEndDate
, NVL(to_char(mo8925.txndate, 'MM/DD/YYYY HH:MI:SS PM'), '-') moveoutto8925
, CASE WHEN mo8925.txndate IS NULL THEN
'-'
ELSE
to_char(ROUND((mo8925.txndate - mi8527.txndate) * 24, 4))
END AS elapsedtimestage
, NVL(to_char(ti8090.qty), '-') qtyatb2
, NVL(to_char(ti8090.txndate, 'MM/DD/YYYY HH:MI:SS PM'), '-') trackindateb2
, CASE WHEN ti8090.txndate IS NULL THEN
'-'
ELSE
to_char(ti8090.txndate + 24/24, 'MM/DD/YYYY HH:MI:SS PM')
END AS FCSTDOvenOutB2
, NVL(to_char(to8090.txndate, 'MM/DD/YYYY HH:MI:SS PM'), '-') trackoutdateb2
, CASE WHEN to8090.txndate IS NULL THEN
'-'
ELSE
to_char(ROUND((to8090.txndate - ti8090.txndate) * 24, 4))
END AS elapsedtimebake2
FROM trackin8080 ti8080
LEFT JOIN trackout8080 to8080 ON ti8080.containerid = to8080.containerid AND to8080.txndate >= ti8080.txndate
LEFT JOIN movein8527 mi8527 ON ti8080.containerid = mi8527.containerid AND mi8527.txndate >= to8080.txndate
LEFT JOIN moveout8925 mo8925 ON ti8080.containerid = mo8925.containerid AND mo8925.txndate >= mi8527.txndate
LEFT JOIN trackin8090 ti8090 ON ti8080.containerid = ti8090.containerid AND ti8090.txndate >= mi8527.txndate
LEFT JOIN trackout8090 to8090 ON ti8080.containerid = to8090.containerid AND to8090.txndate >= ti8090.txndate
WHERE ti8080.containername LIKE :lotid AND ti8080.containername NOT LIKE '%TEST%' AND trunc(ti8080.txndate) > TRUNC(SYSDATE-7)
ORDER BY ti8080.containername
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
---------------------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 149 | 51140 (1)| 00:10:14 |
| 1 | TEMP TABLE TRANSFORMATION | | | | | |
| 2 | LOAD AS SELECT | SYS_TEMP_0FD9DE946_81931B5A | | | | |
| 3 | HASH UNIQUE | | 1 | 98 | 17000 (1)| 00:03:25 |
| 4 | VIEW | | 1 | 98 | 16999 (1)| 00:03:24 |
| 5 | NESTED LOOPS | | | | | |
| 6 | NESTED LOOPS | | 1 | 119 | 16999 (1)| 00:03:24 |
| 7 | VIEW | | 1 | 47 | 16964 (1)| 00:03:24 |
| 8 | NESTED LOOPS | | | | | |
| 9 | NESTED LOOPS | | 1 | 64 | 16964 (1)| 00:03:24 |
| 10 | VIEW | | 1 | 35 | 16962 (1)| 00:03:24 |
| 11 | WINDOW BUFFER | | 1 | 34 | 16962 (1)| 00:03:24 |
| 12 | SORT GROUP BY | | 1 | 34 | 16962 (1)| 00:03:24 |
| 13 | VIEW | | 2 | 68 | 16961 (1)| 00:03:24 |
| 14 | UNION-ALL | | | | | |
|* 15 | TABLE ACCESS FULL | A_WIPLOT | 1 | 87 | 274 (1)| 00:00:04 |
|* 16 | TABLE ACCESS FULL | A_WIPLOTHISTORY | 1 | 81 | 16688 (1)| 00:03:21 |
|* 17 | INDEX UNIQUE SCAN | CONTAINER450 | 1 | | 1 (0)| 00:00:01 |
|* 18 | TABLE ACCESS BY INDEX ROWID | CONTAINER | 1 | 29 | 2 (0)| 00:00:01 |
|* 19 | INDEX RANGE SCAN | HISTORYMAINLINE2 | 46 | | 3 (0)| 00:00:01 |
|* 20 | TABLE ACCESS BY INDEX ROWID | HISTORYMAINLINE | 1 | 72 | 36 (0)| 00:00:01 |
| 21 | SORT ORDER BY | | 1 | 149 | 34140 (1)| 00:06:50 |
|* 22 | HASH JOIN OUTER | | 1 | 149 | 34139 (1)| 00:06:50 |
| 23 | VIEW | | 1 | 123 | 34096 (1)| 00:06:50 |
|* 24 | HASH JOIN OUTER | | 1 | 160 | 34096 (1)| 00:06:50 |
|* 25 | HASH JOIN OUTER | | 1 | 120 | 17094 (1)| 00:03:26 |
| 26 | VIEW | | 1 | 93 | 88 (4)| 00:00:02 |
|* 27 | HASH JOIN OUTER | | 1 | 111 | 88 (4)| 00:00:02 |
| 28 | VIEW | | 1 | 71 | 45 (5)| 00:00:01 |
|* 29 | HASH JOIN OUTER | | 1 | 89 | 45 (5)| 00:00:01 |
|* 30 | VIEW | | 1 | 62 | 2 (0)| 00:00:01 |
| 31 | TABLE ACCESS FULL | SYS_TEMP_0FD9DE946_81931B5A | 1 | 66 | 2 (0)| 00:00:01 |
| 32 | VIEW | | 1 | 27 | 42 (3)| 00:00:01 |
| 33 | HASH UNIQUE | | 1 | 161 | 42 (3)| 00:00:01 |
| 34 | NESTED LOOPS | | | | | |
| 35 | NESTED LOOPS | | 1 | 161 | 41 (0)| 00:00:01 |
| 36 | NESTED LOOPS | | 1 | 80 | 5 (0)| 00:00:01 |
| 37 | NESTED LOOPS | | 1 | 63 | 4 (0)| 00:00:01 |
| 38 | VIEW | | 1 | 17 | 2 (0)| 00:00:01 |
| 39 | TABLE ACCESS FULL | SYS_TEMP_0FD9DE946_81931B5A | 1 | 66 | 2 (0)| 00:00:01 |
|* 40 | TABLE ACCESS BY INDEX ROWID| CONTAINER | 1 | 46 | 2 (0)| 00:00:01 |
|* 41 | INDEX UNIQUE SCAN | CONTAINER450 | 1 | | 1 (0)| 00:00:01 |
|* 42 | INDEX UNIQUE SCAN | PRODUCT502 | 1 | 17 | 1 (0)| 00:00:01 |
|* 43 | INDEX RANGE SCAN | HISTORYMAINLINE2 | 46 | | 3 (0)| 00:00:01 |
|* 44 | TABLE ACCESS BY INDEX ROWID | HISTORYMAINLINE | 1 | 81 | 36 (0)| 00:00:01 |
| 45 | VIEW | | 1 | 40 | 43 (3)| 00:00:01 |
| 46 | HASH UNIQUE | | 1 | 228 | 43 (3)| 00:00:01 |
| 47 | NESTED LOOPS | | | | | |
| 48 | NESTED LOOPS | | 1 | 228 | 42 (0)| 00:00:01 |
| 49 | NESTED LOOPS | | 1 | 99 | 6 (0)| 00:00:01 |
| 50 | NESTED LOOPS | | 1 | 63 | 4 (0)| 00:00:01 |
| 51 | VIEW | | 1 | 17 | 2 (0)| 00:00:01 |
| 52 | TABLE ACCESS FULL | SYS_TEMP_0FD9DE946_81931B5A | 1 | 66 | 2 (0)| 00:00:01 |
|* 53 | TABLE ACCESS BY INDEX ROWID | CONTAINER | 1 | 46 | 2 (0)| 00:00:01 |
|* 54 | INDEX UNIQUE SCAN | CONTAINER450 | 1 | | 1 (0)| 00:00:01 |
| 55 | TABLE ACCESS BY INDEX ROWID | PRODUCT | 1 | 36 | 2 (0)| 00:00:01 |
|* 56 | INDEX UNIQUE SCAN | PRODUCT502 | 1 | | 1 (0)| 00:00:01 |
|* 57 | INDEX RANGE SCAN | HISTORYMAINLINE2 | 46 | | 3 (0)| 00:00:01 |
|* 58 | TABLE ACCESS BY INDEX ROWID | HISTORYMAINLINE | 1 | 129 | 36 (0)| 00:00:01 |
| 59 | VIEW | | 1 | 27 | 17006 (1)| 00:03:25 |
| 60 | HASH UNIQUE | | 1 | 271 | 17006 (1)| 00:03:25 |
|* 61 | HASH JOIN | | 1 | 271 | 17005 (1)| 00:03:25 |
| 62 | NESTED LOOPS | | | | | |
| 63 | NESTED LOOPS | | 1 | 236 | 42 (0)| 00:00:01 |
| 64 | NESTED LOOPS | | 1 | 99 | 6 (0)| 00:00:01 |
| 65 | NESTED LOOPS | | 1 | 63 | 4 (0)| 00:00:01 |
| 66 | VIEW | | 1 | 17 | 2 (0)| 00:00:01 |
| 67 | TABLE ACCESS FULL | SYS_TEMP_0FD9DE946_81931B5A | 1 | 66 | 2 (0)| 00:00:01 |
|* 68 | TABLE ACCESS BY INDEX ROWID | CONTAINER | 1 | 46 | 2 (0)| 00:00:01 |
|* 69 | INDEX UNIQUE SCAN | CONTAINER450 | 1 | | 1 (0)| 00:00:01 |
| 70 | TABLE ACCESS BY INDEX ROWID | PRODUCT | 1 | 36 | 2 (0)| 00:00:01 |
|* 71 | INDEX UNIQUE SCAN | PRODUCT502 | 1 | | 1 (0)| 00:00:01 |
|* 72 | INDEX RANGE SCAN | HISTORYMAINLINE2 | 46 | | 3 (0)| 00:00:01 |
|* 73 | TABLE ACCESS BY INDEX ROWID | HISTORYMAINLINE | 1 | 137 | 36 (0)| 00:00:01 |
| 74 | VIEW | | 1 | 35 | 16962 (1)| 00:03:24 |
| 75 | WINDOW BUFFER | | 1 | 34 | 16962 (1)| 00:03:24 |
| 76 | SORT GROUP BY | | 1 | 34 | 16962 (1)| 00:03:24 |
| 77 | VIEW | | 2 | 68 | 16961 (1)| 00:03:24 |
| 78 | UNION-ALL | | | | | |
|* 79 | TABLE ACCESS FULL | A_WIPLOT | 1 | 87 | 274 (1)| 00:00:04 |
|* 80 | TABLE ACCESS FULL | A_WIPLOTHISTORY | 1 | 81 | 16688 (1)| 00:03:21 |
| 81 | VIEW | | 1 | 40 | 17001 (1)| 00:03:25 |
| 82 | HASH UNIQUE | | 1 | 136 | 17001 (1)| 00:03:25 |
| 83 | NESTED LOOPS | | | | | |
| 84 | NESTED LOOPS | | 1 | 136 | 17000 (1)| 00:03:25 |
| 85 | NESTED LOOPS | | 1 | 64 | 16964 (1)| 00:03:24 |
| 86 | VIEW | | 1 | 35 | 16962 (1)| 00:03:24 |
| 87 | WINDOW BUFFER | | 1 | 34 | 16962 (1)| 00:03:24 |
| 88 | SORT GROUP BY | | 1 | 34 | 16962 (1)| 00:03:24 |
| 89 | VIEW | | 2 | 68 | 16961 (1)| 00:03:24 |
| 90 | UNION-ALL | | | | | |
|* 91 | TABLE ACCESS FULL | A_WIPLOT | 1 | 87 | 274 (1)| 00:00:04 |
|* 92 | TABLE ACCESS FULL | A_WIPLOTHISTORY | 1 | 81 | 16688 (1)| 00:03:21 |
|* 93 | TABLE ACCESS BY INDEX ROWID | CONTAINER | 1 | 29 | 2 (0)| 00:00:01 |
|* 94 | INDEX UNIQUE SCAN | CONTAINER450 | 1 | | 1 (0)| 00:00:01 |
|* 95 | INDEX RANGE SCAN | HISTORYMAINLINE2 | 46 | | 3 (0)| 00:00:01 |
|* 96 | TABLE ACCESS BY INDEX ROWID | HISTORYMAINLINE | 1 | 72 | 36 (0)| 00:00:01 |
| 97 | VIEW | | 1 | 26 | 42 (3)| 00:00:01 |
| 98 | HASH UNIQUE | | 1 | 161 | 42 (3)| 00:00:01 |
| 99 | NESTED LOOPS | | | | | |
| 100 | NESTED LOOPS | | 1 | 161 | 41 (0)| 00:00:01 |
| 101 | NESTED LOOPS | | 1 | 80 | 5 (0)| 00:00:01 |
| 102 | NESTED LOOPS | | 1 | 63 | 4 (0)| 00:00:01 |
| 103 | VIEW | | 1 | 17 | 2 (0)| 00:00:01 |
| 104 | TABLE ACCESS FULL | SYS_TEMP_0FD9DE946_81931B5A | 1 | 66 | 2 (0)| 00:00:01 |
|*105 | TABLE ACCESS BY INDEX ROWID | CONTAINER | 1 | 46 | 2 (0)| 00:00:01 |
|*106 | INDEX UNIQUE SCAN | CONTAINER450 | 1 | | 1 (0)| 00:00:01 |
|*107 | INDEX UNIQUE SCAN | PRODUCT502 | 1 | 17 | 1 (0)| 00:00:01 |
|*108 | INDEX RANGE SCAN | HISTORYMAINLINE2 | 46 | | 3 (0)| 00:00:01 |
|*109 | TABLE ACCESS BY INDEX ROWID | HISTORYMAINLINE | 1 | 81 | 36 (0)| 00:00:01 |
---------------------------------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
15 - filter("WL"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND "WL"."SPECNAME"='8080_STAB_BAKE_1_FT' AND
"WL"."CONTAINERNAME" LIKE :LOTID AND "WL"."CONTAINERNAME" NOT LIKE '%TEST%' AND "WL"."CONTAINERNAME" IS NOT NULL)
16 - filter("WL"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND "WL"."SPECNAME"='8080_STAB_BAKE_1_FT' AND
"WL"."CONTAINERNAME" LIKE :LOTID AND "WL"."CONTAINERNAME" NOT LIKE '%TEST%' AND "WL"."CONTAINERNAME" IS NOT NULL)
17 - access("C"."CONTAINERID"="WL"."CONTAINERID")
18 - filter("C"."CONTAINERNAME" LIKE :LOTID)
19 - access("C"."CONTAINERID"="HML"."HISTORYID")
20 - filter("HML"."WIPTRACKINGGROUPKEYID" IS NOT NULL AND "HML"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND
"HML"."SPECNAME"='8080_STAB_BAKE_1_FT' AND "HML"."CDONAME"='TrackInLot' AND
"WL"."WIPTRACKIGGROUPKEYID"="HML"."WIPTRACKINGGROUPKEYID")
22 - access("TI8080"."CONTAINERID"="TO8090"."CONTAINERID"(+))
filter("TO8090"."TXNDATE"(+)>="TI8090"."TXNDATE")
24 - access("from$_subquery$_054"."QCSJ_C000000005200000"="TI8090"."CONTAINERID"(+))
filter("TI8090"."TXNDATE"(+)>="from$_subquery$_054"."TXNDATE")
25 - access("TI8080"."CONTAINERID"="MO8925"."CONTAINERID"(+))
filter("MO8925"."TXNDATE"(+)>="MI8527"."TXNDATE")
27 - access("TI8080"."CONTAINERID"="MI8527"."CONTAINERID"(+))
filter("MI8527"."TXNDATE"(+)>="TO8080"."TXNDATE")
29 - access("TI8080"."CONTAINERID"="TO8080"."CONTAINERID"(+))
filter("TO8080"."TXNDATE"(+)>="TI8080"."TXNDATE")
30 - filter("TI8080"."CONTAINERNAME" LIKE :LOTID AND "TI8080"."CONTAINERNAME" NOT LIKE '%TEST%' AND
"TI8080"."CONTAINERNAME" IS NOT NULL AND TRUNC(INTERNAL_FUNCTION("TI8080"."TXNDATE"))>TRUNC(SYSDATE@!-7))
40 - filter("C"."CONTAINERNAME" LIKE :LOTID)
41 - access("TI"."CONTAINERID"="C"."CONTAINERID")
42 - access("C"."PRODUCTID"="P"."PRODUCTID")
43 - access("C"."CONTAINERID"="HML"."HISTORYID")
44 - filter("HML"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND "HML"."SPECNAME"='8080_STAB_BAKE_1_FT' AND
"HML"."CDONAME"='TrackOutLot')
53 - filter("C"."CONTAINERNAME" LIKE :LOTID)
54 - access("TI"."CONTAINERID"="C"."CONTAINERID")
56 - access("C"."PRODUCTID"="P"."PRODUCTID")
57 - access("C"."CONTAINERID"="HML"."HISTORYID")
58 - filter("HML"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND "HML"."SPECNAME"='8527_STAGE_BAKE_FT' AND
"HML"."CDONAME"='MoveInLot' AND ("HML"."CALLBYCDONAME"='TestWIPMain' OR "HML"."CALLBYCDONAME"='TestWIPMoveNonStd'))
61 - access("WL"."WIPTRACKIGGROUPKEYID"="HML"."WIPTRACKINGGROUPKEYID" AND "C"."CONTAINERID"="WL"."CONTAINERID")
68 - filter("C"."CONTAINERNAME" LIKE :LOTID)
69 - access("TI"."CONTAINERID"="C"."CONTAINERID")
71 - access("C"."PRODUCTID"="P"."PRODUCTID")
72 - access("C"."CONTAINERID"="HML"."HISTORYID")
73 - filter("HML"."WIPTRACKINGGROUPKEYID" IS NOT NULL AND "HML"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND
"HML"."SPECNAME"='8925_2ND_RM_TST_SOT_2_FT' AND "HML"."CDONAME"='CreateFirstInsertion' AND
("HML"."CALLBYCDONAME"='LotMoveOut' OR "HML"."CALLBYCDONAME"='MoveLot' OR
"HML"."CALLBYCDONAME"='TestWIPMoveNonStd'))
79 - filter("WL"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND "WL"."SPECNAME"='8925_2ND_RM_TST_SOT_2_FT' AND
"WL"."CONTAINERNAME" LIKE :LOTID AND "WL"."CONTAINERNAME" NOT LIKE '%TEST%' AND "WL"."CONTAINERNAME" IS NOT NULL)
80 - filter("WL"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND "WL"."SPECNAME"='8925_2ND_RM_TST_SOT_2_FT' AND
"WL"."CONTAINERNAME" LIKE :LOTID AND "WL"."CONTAINERNAME" NOT LIKE '%TEST%' AND "WL"."CONTAINERNAME" IS NOT NULL)
91 - filter("WL"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND "WL"."SPECNAME"='8090_2ND_BAKE_IN_OVEN_SOT_FT' AND
"WL"."CONTAINERNAME" LIKE :LOTID AND "WL"."CONTAINERNAME" NOT LIKE '%TEST%' AND "WL"."CONTAINERNAME" IS NOT NULL)
92 - filter("WL"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND "WL"."SPECNAME"='8090_2ND_BAKE_IN_OVEN_SOT_FT' AND
"WL"."CONTAINERNAME" LIKE :LOTID AND "WL"."CONTAINERNAME" NOT LIKE '%TEST%' AND "WL"."CONTAINERNAME" IS NOT NULL)
93 - filter("C"."CONTAINERNAME" LIKE :LOTID)
94 - access("C"."CONTAINERID"="WL"."CONTAINERID")
95 - access("C"."CONTAINERID"="HML"."HISTORYID")
96 - filter("HML"."WIPTRACKINGGROUPKEYID" IS NOT NULL AND "HML"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND
"HML"."SPECNAME"='8090_2ND_BAKE_IN_OVEN_SOT_FT' AND "HML"."CDONAME"='TrackInLot' AND
"WL"."WIPTRACKIGGROUPKEYID"="HML"."WIPTRACKINGGROUPKEYID")
105 - filter("C"."CONTAINERNAME" LIKE :LOTID)
106 - access("TI"."CONTAINERID"="C"."CONTAINERID")
107 - access("C"."PRODUCTID"="P"."PRODUCTID")
108 - access("C"."CONTAINERID"="HML"."HISTORYID")
109 - filter("HML"."WORKFLOWNAME"='6_2B2R-DP_WIP' AND "HML"."SPECNAME"='8090_2ND_BAKE_IN_OVEN_SOT_FT' AND
"HML"."CDONAME"='TrackOutLot')
看起来几乎所有的表都只有一行。在这种情况下，全表扫描会更快。您可以通过指定完整提示来实现这一点。统计数据表明Oracle认为您的大多数表只包含一行。这是真的吗？还是你需要收集一些适当的统计数据来让Oracle工作？你好，Tony，查询实际上返回了10行，仅显示这些行就花了我11秒钟。有一个建议，请尝试使用sqlfiddle.com或任何其他替代方法（如果有此类问题的话）。如果您为所有创建的表提供SQLFIDLE，您将更快得到答案。谢谢brhneser。我将尝试回答一个更好的问题。我建议您收集查询中使用的表的统计信息，然后使用更新的执行计划更新您的问题。在您收集统计数据之后，Oracle很有可能会生成更好的执行计划，并且查询可能会因为这些统计数据而运行得很快。试试看，然后告诉我们结果。至于生成统计信息：请参见dbms_stats.gather_table_stats（）过程。我想知道如何才能做到这一点。我对甲骨文几乎是新手。非常感谢。oracle文档是您的朋友，当然还有谷歌。