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以下に示す元のストアドプロシージャT-SQLは非常に遅く実行されており、2000+レコードのデータベースを復元するためには約4.5分かかります。ここでT-SQLクエリを最適化するが、レコードの違いを取得する
は、それを以下に示す（元のクエリ）：私はフェッチ時に最高のコストで
列をしてから戻ってそれらの列を追加：私は削除することによってそれを最適化しようとしたことがあり
DECLARE @Today as Smalldatetime = GetDate()
DECLARE @Organization as nvarchar(200) = replace(db_name(), '_MSCRM', '')
--drop table #DaysToAdd
IF OBJECT_ID('tempdb..#DaysToAdd', 'U') IS NULL
BEGIN
CREATE TABLE #DaysToAdd (
ipmvpopt INT,
postretrofitslamanalysisrequired BIT,
postretrofitpowermeteringrequired BIT,
daysAdded INT,
daysAddedFinal INT
)
INSERT INTO #DaysToAdd Values
(777790000, 0, 0, -14, 196),
(777790000, 0, 1, -14, 196),
(777790000, 1, 0, -14, 196),
(777790000, 1, 1, -14, 196),
(777790004, 0, 0, -56, 412),
(777790004, 0, 1, -56, 412),
(777790004, 1, 0, -79, 412),
(777790004, 1, 1, -56, 412),
(777790006, 0, 0, -56, 412),
(777790006, 0, 1, -56, 412),
(777790006, 1, 0, -79, 412),
(777790006, 1, 1, -56, 412),
(777790005, 0, 0, -56, 451),
(777790005, 0, 1, -56, 451),
(777790005, 1, 0, -56, 451),
(777790005, 1, 1, -56, 451),
(777790003, 0, 0, -56, 451),
(777790003, 0, 1, -56, 451),
(777790003, 1, 0, -56, 451),
(777790003, 1, 1, -56, 451)
END
SELECT
distinct
I.filenumber as [File #],
I.initiativename as [Initiative Name],
I.projectname as [Project Name],
I.mvplancompletedon as [M&V Plan Completion Date],
I.owneridname as [Key Account Manager],
I.approveddatestep4 as [Signed Agreement Recieved Date],
ID.initiativedetailid,
ID.mvcomment as [Comments],
[Data Incomplete] =
CASE
WHEN (ID.mvengineerid IS NULL OR ID.ipmvpopt IS NULL OR ID.requiredmeteringequipment IS NULL OR
ID.preretrofitpowermeteringrequired IS NULL OR ID.postretrofitpowermeteringrequired IS NULL OR
ID.customerpostretrofitdatarequired IS NULL OR ID.preretrofitslamanalysisrequired IS NULL OR
ID.postretrofitslamanalysisrequired IS NULL OR ID.customerbaselinedatarequired IS NULL OR
ID.baselinecorrelationrequired IS NULL OR ID.casanalysisrequired IS NULL) THEN 'Yes'
ELSE 'No'
END,
(SELECT TOP (1) [Location] = CASE WHEN (NOT S.serviceaddress_city IS NULL) THEN S.serviceaddress_city + '/' + S.name ELSE S.name END FROM Filtered_site S WHERE S.siteid = ID.customersiteid) as [Location],
ID.mvengineeridname as [MV Engineer],
ID.mvengineersecondaryidname as [MV Engineer Secondary],
ID.ipmvpoptname as [IPMVP Option],
STUFF((SELECT ',' + ECM.name FROM Filtered_ecm ECM JOIN Filtered_installation I on ECM.ecmid = I.ecmid WHERE I.initiativedetailid = ID.initiativedetailid for xml path('')), 1, 1, '') as [ECM Description],
(SELECT SUM(ESM.energysavings) FROM Filteredenergysavingsmeasurement ESM JOIN Filteredinstallation I on ESM.installationid = I.installationid WHERE ESM.energysavingstype=777790002 AND ESM.statecode=0 AND I.initiativedetailid=ID.initiativedetailid) as [Est. Annual Savings kWh], -- PSE Initial Review
(SELECT SUM(ESM.energysavings) FROM Filteredenergysavingsmeasurement ESM JOIN Filteredinstallation I on ESM.installationid = I.installationid WHERE ESM.energysavingstype=100000003 AND ESM.statecode=0 AND I.initiativedetailid=ID.initiativedetailid) as [Site Inspection Savings kWh], -- PSE Site Inspection
(SELECT TOP (1) ESM.MeasurementDate FROM Filteredenergysavingsmeasurement ESM JOIN Filteredinstallation I on ESM.installationid = I.installationid WHERE I.InitiativeDetailId = ID.InitiativeDetailId AND ESM.EnergySavingsType = 100000003 AND ESM.statecode=0 ORDER BY ESM.MeasurementDate Desc) as [Site Inspection Date],
[Payment Date] =
CASE
WHEN NOT (SELECT TOP (1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = I.initiativeId AND C.commitmenttype = 777790000) IS NULL THEN (SELECT TOP (1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = I.initiativeId AND C.commitmenttype = 777790000)
WHEN (SELECT SUM(C.partialpayment) FROM Filteredcommitment C WHERE C.initiativeid = I.initiativeId AND C.commitmenttype = 777790001) > 40 THEN (SELECT TOP(1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = I.initiativeId AND C.commitmenttype = 777790001 ORDER BY C.datemet Desc)
ELSE Null
END,
ID.postretrofitpowermeteringinstallationdate as [Post-Retrofit Power Metering Installation Date],
ID.postretrofitlightingloggerinstallationdat as [Post-Retrofit Lighting Loggers Installed Date],
ID.mostrecentdatacollection as [Most Recent Data Collection Date],
D.mvreportduedateextensiondays as [Final M&V Report Due Extention Days],
[Trigger Based Final Report Due Date] =
CASE
-- Inspection Date is null
WHEN (SELECT TOP (1) ESM.MeasurementDate FROM Filteredenergysavingsmeasurement ESM JOIN Filteredinstallation I on ESM.installationid = I.installationid WHERE I.InitiativeDetailId = ID.InitiativeDetailId AND ESM.EnergySavingsType = 100000003 AND ESM.statecode=0) IS NULL THEN NULL
-- A, A&C, C, and B-Others without power metering
WHEN (ID.ipmvpopt = 777790000 OR ID.ipmvpopt = 777790005 OR ID.ipmvpopt = 777790003
OR ((ID.ipmvpopt = 777790004 OR ID.ipmvpopt = 777790006) AND ID.postretrofitslamanalysisrequired <> 1 AND ID.postretrofitpowermeteringrequired <> 1)) THEN
DATEADD(d,
CASE
WHEN (ID.ipmvpopt = 777790000 AND (SELECT TOP(1) D.datereceived FROM Filtereddeliverable D WHERE D.initiativedetailid=ID.InitiativeDetailId AND D.deliverabletype=777790008) IS NULL) THEN 1 --A without schedule C
WHEN (ID.ipmvpopt = 777790000) THEN 196 --A with schedule C
WHEN (ID.ipmvpopt = 777790004 OR ID.ipmvpopt = 777790006) THEN 412 -- B-Others
ELSE 451 -- A&C or C
END,
(SELECT TOP (1) ESM.MeasurementDate FROM Filteredenergysavingsmeasurement ESM WHERE ESM.InitiativeDetailId = ID.InitiativeDetailId AND ESM.EnergySavingsType = 100000003 AND statecode=0 ORDER BY ESM.MeasurementDate Desc))
-- B-others with power metering
WHEN ((ID.ipmvpopt = 777790004 OR ID.ipmvpopt = 777790006) AND ID.postretrofitslamanalysisrequired <> 1 AND ID.postretrofitpowermeteringrequired = 1) THEN
CASE
WHEN (ID.postretrofitpowermeteringinstallationdate IS NULL) THEN NULL--'Meters Required'
ELSE DATEADD(d, 421, ID.postretrofitpowermeteringinstallationdate)
END
-- B-Ltg
WHEN ((ID.ipmvpopt = 777790004 OR ID.ipmvpopt = 777790006) AND ID.postretrofitslamanalysisrequired = 1 AND ID.postretrofitpowermeteringrequired <> 1) THEN
CASE
WHEN (ID.postretrofitlightingloggerinstallationdat IS NULL) THEN NULL--'Loggers Required'
ELSE DATEADD(d, 414, ID.postretrofitlightingloggerinstallationdat)
END
ELSE NULL--'UNKNOWN'
END,
[I&R Based Final Report Due Date] =
CASE
WHEN NOT (SELECT TOP (1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = I.initiativeId AND C.commitmenttype = 777790000) IS NULL THEN DATEADD(d, 365, (SELECT TOP (1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = I.initiativeId AND C.commitmenttype = 777790000))
WHEN (SELECT SUM(C.partialpayment) FROM Filteredcommitment C WHERE C.initiativeid = I.initiativeId AND C.commitmenttype = 777790001) > 75 THEN DATEADD(d, 365, (SELECT TOP(1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = I.initiativeId AND C.commitmenttype = 777790001 ORDER BY C.datemet Desc))
ELSE NULL
END,
D.duedate as [Final M&V Report Due Date],
D.loggersmetersrequired as [Loggers Or Meters Required],
CASE
WHEN (NOT D.mvreportauthor IS NULL) THEN 'Done'
WHEN (D.duedate IS NULL) THEN 'N/A'
WHEN (D.duedate > @Today) THEN CONVERT(nvarchar(16), DATEDIFF(d, @Today, D.duedate))
ELSE 'Overdue'
END as [Report Due In Days],
@Organization
FROM
Filteredinitiative I
JOIN Filteredinitiativedetail ID on I.initiativeid = ID.initiativeid
join Filtereddeliverable d on i.initiativeid = d.initiativeid AND D.deliverabletype = 777790035 -- M&V Final Report
and d.statecode = 0
left join #DaysToAdd A On A.ipmvpopt = ID.ipmvpopt AND a.postretrofitpowermeteringrequired = ID.postretrofitpowermeteringrequired AND A.postretrofitslamanalysisrequired = ID.postretrofitslamanalysisrequired
WHERE
-- Global Filters
I.statecode = 0
AND I.mvinvolvement = 1
AND I.initiativetype = 777790003 --Incentive
-- Query Logic
-- Final MV Report Due Date is a date
AND NOT D.duedate IS NULL
-- Final MV report author is null
AND (D.mvreportcompletiondate is NULL OR D.mvanalysiscompletiondate is NULL)
-- Final MV Report Due Date - Final MV Report Preparation Time < Current Date
AND (ID.ipmvpopt = 777790000 OR ID.ipmvpopt = 777790004 OR ID.ipmvpopt = 777790003 OR ID.ipmvpopt = 777790005 OR ID.ipmvpopt = 777790006)
AND DATEADD(d, A.daysAdded, D.duedate) < @Today
DROP TABLE tempdb..#DaysToAdd
一時表の行
実行時間を3分07秒に短縮しました。最初の問題では、（元のクエリのように）2346行になるはずの予想データセットは返されませんが、代わりに2630レコードが返されます。
インラインサンプルの列（SELECT TOP（1）...... ORDER BY、CASEなど）はコストがかかるようですが、これらを最適化して元のクエリを模倣してすべてのデータ行をフェッチすることはできますか）
質問： このクエリを最適化する方法を教えてください。 FYI：必要なテーブルに関する統計を追加し、クラスタ化インデックスと非クラスタ化インデックスを追加しました。 このクエリを正しく最適化する方法がありますか？ SELECT TOP ... ORDER BYをTEMPテーブルに移動して最適化する方法はありますか？私の最適化されたクエリは以下の通りです
：
DECLARE @Today as Smalldatetime = GetDate()
DECLARE @Organization as nvarchar(200) = replace(db_name(), '_MSCRM', '')
IF OBJECT_ID('tempdb..#DaysToAdd', 'U') IS NULL
BEGIN
CREATE TABLE #DaysToAdd (
ipmvpopt INT,
postretrofitslamanalysisrequired BIT,
postretrofitpowermeteringrequired BIT,
daysAdded INT,
daysAddedFinal INT
)
INSERT INTO #DaysToAdd Values
(777790000, 0, 0, -14, 196),
(777790000, 0, 1, -14, 196),
(777790000, 1, 0, -14, 196),
(777790000, 1, 1, -14, 196),
(777790004, 0, 0, -56, 412),
(777790004, 0, 1, -56, 412),
(777790004, 1, 0, -79, 412),
(777790004, 1, 1, -56, 412),
(777790006, 0, 0, -56, 412),
(777790006, 0, 1, -56, 412),
(777790006, 1, 0, -79, 412),
(777790006, 1, 1, -56, 412),
(777790005, 0, 0, -56, 451),
(777790005, 0, 1, -56, 451),
(777790005, 1, 0, -56, 451),
(777790005, 1, 1, -56, 451),
(777790003, 0, 0, -56, 451),
(777790003, 0, 1, -56, 451),
(777790003, 1, 0, -56, 451),
(777790003, 1, 1, -56, 451)
END
SELECT
distinct
I.filenumber,
I.initiativename,
I.projectname,
I.mvplancompletedon,
I.owneridname,
I.approveddatestep4,
ID.initiativedetailid,
ID.mvcomment,
ID.mvengineeridname,
ID.mvengineersecondaryidname,
ID.ipmvpoptname,
ID.postretrofitpowermeteringinstallationdate,
ID.postretrofitlightingloggerinstallationdat,
ID.mostrecentdatacollection,
D.mvreportduedateextensiondays,
D.duedate as duedate,
D.loggersmetersrequired,
@Organization as Organization,
D.mvreportcompletiondate,
D.mvanalysiscompletiondate,
ID.mvengineerid,
ID.ipmvpopt,
ID.requiredmeteringequipment,
ID.preretrofitpowermeteringrequired,
ID.postretrofitpowermeteringrequired,
ID.preretrofitslamanalysisrequired,
ID.postretrofitslamanalysisrequired,
ID.customerbaselinedatarequired,
ID.baselinecorrelationrequired,
ID.casanalysisrequired,
ID.customersiteid,
ID.customerpostretrofitdatarequired,
D.mvreportauthor,
I.initiativeId
INTO tempdb..#MainTable
FROM
Filteredinitiative I
JOIN Filteredinitiativedetail ID on I.initiativeid = ID.initiativeid
join Filtereddeliverable d on i.initiativeid = d.initiativeid AND D.deliverabletype = 777790035 -- M&V Final Report
and d.statecode = 0
left join #DaysToAdd A On A.ipmvpopt = ID.ipmvpopt AND a.postretrofitpowermeteringrequired = ID.postretrofitpowermeteringrequired AND A.postretrofitslamanalysisrequired = ID.postretrofitslamanalysisrequired
WHERE
-- Global Filters
I.statecode = 0
AND I.mvinvolvement = 1
AND I.initiativetype = 777790003 --Incentive
-- Query Logic
-- Final MV Report Due Date is a date
AND D.duedate IS NOT NULL
-- Final MV report author is null
AND (D.mvreportcompletiondate is NULL OR D.mvanalysiscompletiondate is NULL)
-- Final MV Report Due Date - Final MV Report Preparation Time < Current Date
AND (ID.ipmvpopt = 777790000 OR ID.ipmvpopt = 777790004 OR ID.ipmvpopt = 777790003 OR ID.ipmvpopt = 777790005 OR ID.ipmvpopt = 777790006)
AND DATEADD(d, A.daysAdded, D.duedate) < @Today
Select main.filenumber as [File #],
main.initiativename as [Initiative Name],
main.projectname as [Project Name],
main.mvplancompletedon as [M&V Plan Completion Date],
main.owneridname as [Key Account Manager],
main.approveddatestep4 as [Signed Agreement Recieved Date],
main.initiativedetailid,
main.mvcomment as [Comments],
[Data Incomplete] =
CASE
WHEN (main.mvengineerid IS NULL OR main.ipmvpopt IS NULL OR main.requiredmeteringequipment IS NULL OR
main.preretrofitpowermeteringrequired IS NULL OR main.postretrofitpowermeteringrequired IS NULL OR
main.customerpostretrofitdatarequired IS NULL OR main.preretrofitslamanalysisrequired IS NULL OR
main.postretrofitslamanalysisrequired IS NULL OR main.customerbaselinedatarequired IS NULL OR
main.baselinecorrelationrequired IS NULL OR main.casanalysisrequired IS NULL) THEN 'Yes'
ELSE 'No'
END,
(SELECT TOP (1) [Location] = CASE WHEN (NOT s.serviceaddress_city IS NULL) THEN s.serviceaddress_city + '/' + S.name ELSE S.name END FROM Filteredsite S WHERE S.siteid = main.customersiteid) as [Location],
main.mvengineeridname as [MV Engineer],
main.mvengineersecondaryidname as [MV Engineer Secondary],
main.ipmvpoptname as [IPMVP Option],
STUFF((SELECT ',' + ECM.name FROM Filteredecm ECM JOIN Filteredinstallation I on ECM.ecmid = I.ecmid WHERE I.initiativedetailid = main.initiativedetailid for xml path('')), 1, 1, '') as [ECM Description],
(SELECT SUM(ESM.energysavings) FROM Filteredenergysavingsmeasurement ESM JOIN Filteredinstallation I on ESM.installationid = I.installationid WHERE ESM.energysavingstype=777790002 AND ESM.statecode=0 AND I.initiativedetailid=main.initiativedetailid) as [Est. Annual Savings kWh], -- PSE Initial Review
(SELECT SUM(ESM.energysavings) FROM Filteredenergysavingsmeasurement ESM JOIN Filteredinstallation I on ESM.installationid = I.installationid WHERE ESM.energysavingstype=100000003 AND ESM.statecode=0 AND I.initiativedetailid=main.initiativedetailid) as [Site Inspection Savings kWh], -- PSE Site Inspection
(SELECT TOP (1) ESM.MeasurementDate FROM Filteredenergysavingsmeasurement ESM JOIN Filteredinstallation I on ESM.installationid = I.installationid WHERE I.InitiativeDetailId = main.InitiativeDetailId AND ESM.EnergySavingsType = 100000003 AND ESM.statecode=0 ORDER BY ESM.MeasurementDate Desc) as [Site Inspection Date],
[Payment Date] =
CASE
WHEN NOT (SELECT TOP (1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = main.initiativeId AND C.commitmenttype = 777790000) IS NULL THEN (SELECT TOP (1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = main.initiativeId AND C.commitmenttype = 777790000)
WHEN (SELECT SUM(C.partialpayment) FROM Filteredcommitment C WHERE C.initiativeid = main.initiativeId AND C.commitmenttype = 777790001) > 40 THEN (SELECT TOP(1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = main.initiativeId AND C.commitmenttype = 777790001 ORDER BY C.datemet Desc)
ELSE Null
END,
main.postretrofitpowermeteringinstallationdate as [Post-Retrofit Power Metering Installation Date],
main.postretrofitlightingloggerinstallationdat as [Post-Retrofit Lighting Loggers Installed Date],
main.mostrecentdatacollection as [Most Recent Data Collection Date],
main.mvreportduedateextensiondays as [Final M&V Report Due Extention Days],
[Trigger Based Final Report Due Date] =
CASE
-- Inspection Date is null
WHEN (SELECT TOP (1) ESM.MeasurementDate FROM Filteredenergysavingsmeasurement ESM JOIN Filteredinstallation I on ESM.installationid = I.installationid WHERE I.InitiativeDetailId = main.InitiativeDetailId AND ESM.EnergySavingsType = 100000003 AND ESM.statecode=0) IS NULL THEN NULL
-- A, A&C, C, and B-Others without power metering
WHEN (main.ipmvpopt = 777790000 OR main.ipmvpopt = 777790005 OR main.ipmvpopt = 777790003
OR ((main.ipmvpopt = 777790004 OR main.ipmvpopt = 777790006) AND main.postretrofitslamanalysisrequired <> 1 AND main.postretrofitpowermeteringrequired <> 1)) THEN
DATEADD(d,
CASE
WHEN (main.ipmvpopt = 777790000 AND (SELECT TOP(1) D.datereceived FROM Filtereddeliverable D WHERE D.initiativedetailid=main.InitiativeDetailId AND D.deliverabletype=777790008) IS NULL) THEN 1 --A without schedule C
WHEN (main.ipmvpopt = 777790000) THEN 196 --A with schedule C
WHEN (main.ipmvpopt = 777790004 OR main.ipmvpopt = 777790006) THEN 412 -- B-Others
ELSE 451 -- A&C or C
END,
(SELECT TOP (1) ESM.MeasurementDate FROM Filteredenergysavingsmeasurement ESM WHERE ESM.InitiativeDetailId = main.InitiativeDetailId AND ESM.EnergySavingsType = 100000003 AND statecode=0 ORDER BY ESM.MeasurementDate Desc))
-- B-others with power metering
WHEN ((main.ipmvpopt = 777790004 OR main.ipmvpopt = 777790006) AND main.postretrofitslamanalysisrequired <> 1 AND main.postretrofitpowermeteringrequired = 1) THEN
CASE
WHEN (main.postretrofitpowermeteringinstallationdate IS NULL) THEN NULL--'Meters Required'
ELSE DATEADD(d, 421, main.postretrofitpowermeteringinstallationdate)
END
-- B-Ltg
WHEN ((main.ipmvpopt = 777790004 OR main.ipmvpopt = 777790006) AND main.postretrofitslamanalysisrequired = 1 AND main.postretrofitpowermeteringrequired <> 1) THEN
CASE
WHEN (main.postretrofitlightingloggerinstallationdat IS NULL) THEN NULL--'Loggers Required'
ELSE DATEADD(d, 414, main.postretrofitlightingloggerinstallationdat)
END
ELSE NULL--'UNKNOWN'
END,
[I&R Based Final Report Due Date] =
CASE
WHEN NOT (SELECT TOP (1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = main.initiativeId AND C.commitmenttype = 777790000) IS NULL THEN DATEADD(d, 365, (SELECT TOP (1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = main.initiativeId AND C.commitmenttype = 777790000))
WHEN (SELECT SUM(C.partialpayment) FROM Filteredcommitment C WHERE C.initiativeid = main.initiativeId AND C.commitmenttype = 777790001) > 75 THEN DATEADD(d, 365, (SELECT TOP(1) C.datemet FROM Filteredcommitment C WHERE C.initiativeid = main.initiativeId AND C.commitmenttype = 777790001 ORDER BY C.datemet Desc))
ELSE NULL
END,
main.duedate as [Final M&V Report Due Date],
main.loggersmetersrequired as [Loggers Or Meters Required],
CASE
WHEN (main.mvreportauthor IS NOT NULL) THEN 'Done'
WHEN (main.duedate IS NULL) THEN 'N/A'
WHEN (main.duedate > @Today) THEN CONVERT(nvarchar(16), DATEDIFF(d, @Today, main.duedate))
ELSE 'Overdue'
END as [Report Due In Days],
@Organization as Organization
FROM tempdb..#MainTable main
DROP TABLE tempdb..#MainTable
select句のサブクエリが問題を引き起こしていると私は思います。 –
SET STATISTICS TIME、IO ONで最適化クエリを実行したときに出力される統計情報を提供できますか –