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Editorial Team
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Asked: 2026-06-13T07:10:51+00:00

This query is taking 5 seconds: With cte as ( Select ROW_NUMBER() OVER (Order

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This query is taking 5 seconds:

With cte as 
(
    Select  ROW_NUMBER() OVER (Order By dbo.GetLatestStatusDateTime(d.DocumentID)) peta_rn, d.DocumentID, d.IsReEfiled, d.IGroupID, d.ITypeID, d.RecordingDateTime,
        d.IDate, d.InstrumentID, d.DocumentStatusID, u.Username, j.JDAbbreviation, inf.DocumentName,  dbo.GetLatestStatusDateTime(d.DocumentID) as LatestStatusDatetime,
        it.Abbreviation as ITypeAbbreviation, d.DocumentDate, ds.Abbreviation as DocumentStatusAbbreviation 
                From Documents d Left Join IGroupes ig On d.IGroupID = ig.IGroupID 
                Left Join ITypes it On d.ITypeID = it.ITypeID 
                Left Join Users u On u.UserID = d.UserID 
                Left Join DocumentStatuses ds On d.DocumentStatusID = ds.DocumentStatusID 
                Left Join InstrumentFiles inf On d.DocumentID = inf.DocumentID 
                Left Join Jurisdictions j on j.JurisdictionID = d.JurisdictionID Where 1 = 1  And d.JurisdictionID = 1
)
Select  * from cte
                Where 1 = 1 
                And peta_rn>92000 AND peta_rn<=92100

Though this is a static query, it will be dynamic in the sense that Order By in Row_Number() would be based on what user selects. Eg. currently it is dbo.GetLatestStatusDateTime(d.DocumentID) but it can be anything else too. Hence this query would be generated in code using if and then. Anyways, can you spot any mistake in my query? Why would it take 5 seconds for mere 100 records? I have seen SQL server scale upto millions of records and this is just 1/10th of million and I am suffering from bottleneck 🙁

Edit: Massive improvement

Changing the query to this:

With cte as 
(

        Select  ROW_NUMBER() OVER (Order By d.DocumentID) peta_rn, d.DocumentID
                From Documents d Left Join IGroupes ig On d.IGroupID = ig.IGroupID 
                Left Join ITypes it On d.ITypeID = it.ITypeID 
                Left Join Users u On u.UserID = d.UserID 
                Left Join DocumentStatuses ds On d.DocumentStatusID = ds.DocumentStatusID 
                Left Join InstrumentFiles inf On d.DocumentID = inf.DocumentID 
                Left Join Jurisdictions j on j.JurisdictionID = d.JurisdictionID Where 1 = 1  And d.JurisdictionID = 1
)
Select  d.DocumentID, d.IsReEfiled, d.IGroupID, d.ITypeID, d.RecordingDateTime,
        d.IDate, d.InstrumentID, d.DocumentStatusID, u.Username, j.JDAbbreviation, inf.DocumentName, 
        it.Abbreviation as ITypeAbbreviation, d.DocumentDate, ds.Abbreviation as DocumentStatusAbbreviation 
                From Documents d Left Join IGroupes ig On d.IGroupID = ig.IGroupID 
                Left Join ITypes it On d.ITypeID = it.ITypeID 
                Left Join Users u On u.UserID = d.UserID 
                Left Join DocumentStatuses ds On d.DocumentStatusID = ds.DocumentStatusID 
                Left Join InstrumentFiles inf On d.DocumentID = inf.DocumentID 
                Left Join Jurisdictions j on j.JurisdictionID = d.JurisdictionID
                Inner Join cte On cte.DocumentID = d.DocumentID
                And peta_rn>92000 AND peta_rn<=92100

executes the query in 1 second. But I still feel 1 second is too big just for 100 records. Any other optimizations please?

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1 Answer

  1. Editorial Team

    try this. It is alot of code to edit without knowing the tables relations and not being able to test it. I hope this helps.

    With d as 
(
  Select ROW_NUMBER() OVER (Order By d.DocumentID) peta_rn, 
  DocumentID, IsReEfiled, IGroupID, ITypeID, RecordingDateTime,
  IDate, InstrumentID, DocumentStatusID, JurisdictionID, UserID
  from Documents
)
Select  d.DocumentID, d.IsReEfiled, d.IGroupID, d.ITypeID, d.RecordingDateTime,
d.IDate, d.InstrumentID, d.DocumentStatusID, u.Username, j.JDAbbreviation, inf.DocumentName, 
it.Abbreviation as ITypeAbbreviation, d.DocumentDate, ds.Abbreviation as DocumentStatusAbbreviation 
From d Left Join IGroupes ig On d.IGroupID = ig.IGroupID 
Left Join ITypes it On d.ITypeID = it.ITypeID 
Left Join Users u On u.UserID = d.UserID 
Left Join DocumentStatuses ds On d.DocumentStatusID = ds.DocumentStatusID 
Left Join InstrumentFiles inf On d.DocumentID = inf.DocumentID 
Left Join Jurisdictions j on j.JurisdictionID = d.JurisdictionID
where
d.peta_rn>92000 AND d.peta_rn<=92100
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