Sql T.DATASET='CMP' 而圣彼得堡则
最后,请注意,由于表、列和条件的数量之多,如果上面的查询是100%正确的,我会感到震惊。我尽了最大努力,但我的努力可能还不够好:)可能需要调整。您选择的减慢查询速度的选项有以下原因:Sql T.DATASET='CMP' 而圣彼得堡则,sql,performance,oracle,query-optimization,Sql,Performance,Oracle,Query Optimization,最后,请注意,由于表、列和条件的数量之多,如果上面的查询是100%正确的,我会感到震惊。我尽了最大努力,但我的努力可能还不够好:)可能需要调整。您选择的减慢查询速度的选项有以下原因: 数学(小于)可以不使用案例索引。考虑 如果列表较小,则更改为in列表 如果没有如下所示的索引,则速度会很慢 一开(ST.item\u编号、ST.dataset、流程中的ST.status\u、ST.dctype) XAL_主管上的一个(项目编号) max可以使用datephysical上的一个,因为它会导致orde
如果列表较小,则更改为in列表
如果不使用索引,有很多原因。WHERE子句中的数学,如果大ROWCUTE,然后明确地考虑项目1,因此将使用索引。此外,若列可以为null,则可以使用基于函数的索引 减慢查询速度的选择有以下原因:
如果列表较小,则更改为in列表
如果不使用索引,有很多原因。WHERE子句中的数学,如果大ROWCUTE,然后明确地考虑项目1,因此将使用索引。此外,若列可以为null,则可以使用基于函数的索引 检查您的表
STOCKTRANS
是否正确索引这里有一些顾问,他们通过调整他人的劣质代码而过上了非常好的生活。如果是simp,他们就不会收这么多钱;只需看一个问题,然后说“在那里更改那一行”。有许多因素可能会导致性能不佳。数据量、数据倾斜、坏磁盘、内存不足、陈旧统计信息、缺少索引、错误索引、磁盘排序。写得不好的SQL只是其中之一。正如@Majid所说:检查是否有正确的索引以及查询计划是否实际使用了它们。检查您的表STOCKTRANS
是否正确索引这里有一些顾问,他们通过调整别人的劣质代码而过上了很好的生活。如果是simp,他们就不会收这么多钱;只需看一个问题,然后说“在那里更改那一行”。有许多因素可能会导致性能不佳。数据量、数据倾斜、坏磁盘、内存不足、陈旧统计信息、缺少索引、错误索引、磁盘排序。糟糕的SQL只是其中之一。正如@Majid所说:检查是否有正确的索引以及查询计划是否实际使用了它们。感谢您的帮助!谢谢你的帮助,艾德!谢谢你的帮助,康拉德!谢谢你的帮助,康拉德!
SELECT XAL_SUPERVISOR.SALESTABLE.SALESNUMBER, XAL_SUPERVISOR.SALESTABLE.DEBTORACCOUNT, XAL_SUPERVISOR.SALESTABLE.DELIVERYNAME,
XAL_SUPERVISOR.SALESTABLE.DELIVERYADDRESS3, XAL_SUPERVISOR.SALESTABLE.REQUISNUMBER, XAL_SUPERVISOR.SALESTABLE.CUSTOMERREF,
XAL_SUPERVISOR.SALESTABLE.ROUTE, XAL_SUPERVISOR.SALESTABLE.ROUTENUMBER, XAL_SUPERVISOR.SALESTABLE.CMPVWSTATUS,
XAL_SUPERVISOR.SALESTABLE.CMPLOGISTIEK, XAL_SUPERVISOR.SALESTABLE.USVEHICLE, XAL_SUPERVISOR.SALESTABLE.ELCSALSTCALL,
XAL_SUPERVISOR.SALESTABLE.ELCSALSTOK, XAL_SUPERVISOR.SALESTABLE.ELCEDICODE, XAL_SUPERVISOR.SALESTRANS.ITEMNUMBER,
XAL_SUPERVISOR.STOCKTABLE.ITEMNAME, XAL_SUPERVISOR.SALESTRANS.QTYORDERED, XAL_SUPERVISOR.SALESTRANS.STOCKLOC AS REGELLOC,
XAL_SUPERVISOR.STOCKTABLE.STOCKLOC AS STDLOC, XAL_SUPERVISOR.SALESTABLE.DELIVERYDATE, XAL_SUPERVISOR.SALESTABLE.DATASET,
XAL_SUPERVISOR.SALESTABLE.CMPCORRECTIE, XAL_SUPERVISOR.SALESTRANS.ELCORGQTYORDERED AS ORG_BESTELD,
XAL_SUPERVISOR.STOCKTABLE.CMPVERVALLEN,
(SELECT (SUM(STS.ENTEREDQTY) + SUM(STS.RECEIVED) - SUM(STS.DRAWN))
FROM XAL_SUPERVISOR.STOCKSUM STS
WHERE STS.ITEMNUMBER = XAL_SUPERVISOR.SALESTRANS.ITEMNUMBER AND STS.DATASET = 'CMP'
GROUP BY STS.ITEMNUMBER) AS VOORRAAD,
(SELECT SUM(STS.ORDERED)
FROM XAL_SUPERVISOR.STOCKSUM STS
WHERE STS.ITEMNUMBER = XAL_SUPERVISOR.SALESTRANS.ITEMNUMBER AND STS.DATASET = 'CMP'
GROUP BY STS.ITEMNUMBER) AS BESTELD,
(SELECT SUM(STS.RESERVPHYSICAL)
FROM XAL_SUPERVISOR.STOCKSUM STS
WHERE STS.ITEMNUMBER = XAL_SUPERVISOR.SALESTRANS.ITEMNUMBER AND STS.DATASET = 'CMP'
GROUP BY STS.ITEMNUMBER) AS GERESERVEERD,
(SELECT DDT.QTY
FROM XAL_SUPERVISOR.DEBDLVTRANS DDT
WHERE DDT.TRANSID = XAL_SUPERVISOR.SALESTRANS.TRANSID AND DDT.DATASET = 'CMP') AS PAKBONAANTAL,
(SELECT DIT.QTY
FROM XAL_SUPERVISOR.DEBINVTRANS DIT
WHERE DIT.TRANSID = XAL_SUPERVISOR.SALESTRANS.TRANSID AND DIT.DATASET = 'CMP') AS FACTUURAANTAL,
(SELECT MAX(ST.DATEPHYSICAL)
FROM XAL_SUPERVISOR.STOCKTRANS ST
WHERE ST.ITEMNUMBER = XAL_SUPERVISOR.SALESTRANS.ITEMNUMBER AND ST.DATASET = 'CMP' AND ST.StatusInFlow < 3 AND ST.DCType = 2)
AS LTSTGELEVERD
FROM XAL_SUPERVISOR.SALESTABLE, XAL_SUPERVISOR.SALESTRANS, XAL_SUPERVISOR.STOCKTABLE
WHERE XAL_SUPERVISOR.SALESTABLE.DATASET = XAL_SUPERVISOR.SALESTRANS.DATASET AND
XAL_SUPERVISOR.SALESTABLE.SALESNUMBER = XAL_SUPERVISOR.SALESTRANS.SALESNUMBER AND
XAL_SUPERVISOR.SALESTRANS.ITEMNUMBER = XAL_SUPERVISOR.STOCKTABLE.ITEMNUMBER AND
XAL_SUPERVISOR.SALESTRANS.DATASET = XAL_SUPERVISOR.STOCKTABLE.DATASET AND (XAL_SUPERVISOR.SALESTABLE.DELIVERYDATE = :Leverdatum) AND
(XAL_SUPERVISOR.SALESTABLE.DATASET = 'CMP') AND (XAL_SUPERVISOR.SALESTABLE.CMPCORRECTIE = 0)
(SELECT MAX(ST.DATEPHYSICAL)
FROM XAL_SUPERVISOR.STOCKTRANS ST
WHERE ST.ITEMNUMBER = XAL_SUPERVISOR.SALESTRANS.ITEMNUMBER AND ST.DATASET = 'CMP' AND ST.StatusInFlow < 3 AND ST.DCType = 2)
AS LTSTGELEVERD
WITH datephysical_max as
(SELECT Max(ST.datephysical) max_ , ST.itemnumber
FROM xal_supervisor.stocktrans ST
WHERE
AND ST.dataset = 'CMP'
AND ST.statusinflow < 3
AND ST.dctype = 2
GROUP BY )
SELECT
....,
st.LTSTGELEVERD
FROM xal_supervisor.salestable
inner join xal_supervisor.salestrans
ON xal_supervisor.salestable.dataset =
xal_supervisor.salestrans.dataset
AND xal_supervisor.salestable.salesnumber =
xal_supervisor.salestrans.salesnumber
AND xal_supervisor.salestrans.itemnumber =
xal_supervisor.stocktable.itemnumber
inner join xal_supervisor.stocktable
ON xal_supervisor.salestrans.dataset =
xal_supervisor.stocktable.dataset
INNER JOIN datephysical_max st
ON ST.itemnumber = xal_supervisor.salestrans.itemnumber
WHERE ( xal_supervisor.salestable.deliverydate = :Leverdatum )
AND ( xal_supervisor.salestable.dataset = 'CMP' )
AND ( xal_supervisor.salestable.cmpcorrectie = 0 )
WITH StkSum AS (
SELECT
STS.ITEMNUMBER,
SUM(STS.ENTEREDQTY) + SUM(STS.RECEIVED) - SUM(STS.DRAWN) AS VOORRAAD,
SUM(STS.ORDERED) AS BESTELD,
SUM(STS.RESERVPHYSICAL) AS GERESERVEERD,
MAX(ST.DATEPHYSICAL) AS LTSTGELEVERD
FROM XAL_SUPERVISOR.STOCKSUM STS
INNER JOIN XAL_SUPERVISOR.STOCKTRANS ST ON STS.ITEMNUMBER = ST.ITEMNUMBER
WHERE STS.DATASET = 'CMP'
AND ST.DATASET = 'CMP'
AND ST.StatusInFlow < 3
AND ST.DCType = 2
)
SELECT
XAL_SUPERVISOR.SALESTABLE.SALESNUMBER,
... all those SALESTABLE and SALESTRANS and STOCKTABLE columns ...,
StkSum.VOORRAAD,
StkSum.BESTELD,
StkSum.GERESERVEERD,
NVL(XAL_SUPERVISOR.DEBDLVTRANS.QTY, 0) AS PAKBONAANTAL,
NVL(XAL_SUPERVISOR.DEBINVTRANS.QTY, 0) AS FACTUURAANTAL,
StkSum.LTSTGELEVERD
FROM XAL_SUPERVISOR.SALESTABLE
INNER JOIN XAL_SUPERVISOR.SALESTRANS ON
SalesTable.DataSet = SalesTrans.DataSet AND
SalesTable.SalesNumber = SalesTrans.SalesNumber
INNER JOIN XAL_SUPERVISOR.STOCKTABLE ON
SalesTrans.ItemNumber = StockTable.ItemNumber AND
SalesTrans.DataSet = StockTable.DataSet
LEFT OUTER JOIN StkSum ON StkSum.ITEMNUMBER = SalesTrans.ITEMNUMBER
LEFT OUTER JOIN XAL_SUPERVISOR.DEBDLVTRANS DDT ON DDT.TRANSID = SalesTrans.TRANSID
LEFT OUTER JOIN XAL_SUPERVISOR.DEBINVTRANS DIT ON DIT.TRANSID = SalesTrans.TRANSID
WHERE
(XAL_SUPERVISOR.SALESTABLE.DELIVERYDATE = :Leverdatum) AND
(XAL_SUPERVISOR.SALESTABLE.DATASET = 'CMP') AND
(XAL_SUPERVISOR.SALESTABLE.CMPCORRECTIE = 0) AND
DDT.DATASET = 'CMP' AND
DIT.DATASET = 'CMP'