2016-08-06 26 views
0

Eine unten angegebene ursprüngliche gespeicherte Prozedur T-SQL läuft sehr langsam und dauert etwa 4,5 Minuten, um eine Datenbank mit mehr als 2000 Datensätzen wiederherzustellen.Optimieren der T-SQL-Abfrage, aber Ermitteln des Unterschieds in den Datensätzen

Hier ist es gegeben, unter (ORIGINAL QUERY):

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 

Ich habe versucht, es zu optimieren, indem:

Spalten mit den höchsten Kosten und anschließend wurden die Spalten zurück, wenn ich holen Zeilen aus den temporären Tabellen.

Ich reduzierte die Ausführungszeit auf 3:07 Minuten. Erste Ausgabe bringt mich nicht die erwartete Datenmenge zurück, die 2346 Zeilen sein sollte (wie die ursprüngliche Abfrage) aber 2630 Datensätze stattdessen zurückbringen.

Die Spalten mit Inline-Beispiel (SELECT TOP (1) ...... ORDER BY, und CASE usw. scheinen teuer zu sein. Kann ich diese optimieren und auch die obige Abfrage nachahmen, so dass alle Datenzeilen abgerufen werden richtig.)

Frage: Können Sie mir eine bessere Möglichkeit zur Optimierung dieser Abfrage sagen? FYI: Wir haben Statistiken zu den erforderlichen Tabellen hinzugefügt und haben geclusterte und nicht geclusterte Indizes. Gibt es eine bessere Möglichkeit, diese Abfrage richtig zu optimieren? Gibt es eine Möglichkeit, diese SELECT TOP ... ORDER BY in TEMP-Tabellen zu verschieben und auf die Optimierung zu reduzieren?

Meine optimierte Abfrage ist unten angegeben:

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 
+3

Ihre Unterabfragen in der Select-Klausel verursachen Ihre Probleme, denke ich. –

+0

Können Sie die Statistiken angeben, die ausgegeben werden, wenn Sie Ihre optimierte Abfrage mit SET STATISTICS TIME, IO ON ausführen –

Antwort