从另一个服务器调用时，存储过程返回不同的结果

Question

I have created a stored procedure in Server1 that is returning the correct results Then on Server2 I just execute the Server1 stored procedure by linked server.

At first the return results at Server2 are the same as Server1.

But after 1 or 2 days, Server2 returns some null values in some of the data. But Server1 is still returning the correct results.

Result Server1:

Id  Name       Location     Age
1   Alex       USA          20
2   Bob        UK           23
3   David      JP           25
4   Don        UK           24

Result Server2:

Id  Name       Location     Age
1   Alex       USA          20
2   Bob        NULL         NULL
3   David      NULL         NULL
4   Don        UK           24

I'm only able to temporally resolve this by recompile the Server1 stored procedure. Than the Server2 will get the correct result, but after 2 days later the same problem occur again.

20190920 update..... include the sample of store procedure query FYI: Some NULLvalue appear in those column CASE statement

 all the @... is input @output is declare as Table. above here is a lot of insert statement into the @Output table SELECT * FROM ( SELECT tbla.SiteName,tbla.FromWorkCenter ,tbla.Category,tbla.MaterialName,tbla.OperSeq ,tbla.FromOperSeq,tbla.StepIndex,tbla.FromStepIndex,SUM(tbla.CFqty) CFQty FROM ( SELECT tbl.SiteName ,CASE WHEN tbl.RouteName like '%REWORK%' THEN 'PS-'+tbl.ToWorkCenter WHEN isnull(tbl.FromWorkCenter,'WRH')='WRH' THEN (Select CASE Source WHEN 'TWH' THEN 'TWH' WHEN 'LWH' THEN 'LWH' ELSE 'WRH' END AS Source from DIM_MATERIAL ddm WHERE ddm.MaterialName=tbl.MaterialName AND ddm.MainCategory_wk = (SELECT TOP 1 dc.key_wk FROM DIM_Category dc WHERE dc.Category=TBL.Category)) else 'PS-'+dw.WorkCenterName END AS FromWorkCenter ,Category ,tbl.MaterialName,tbl.RouteName ,CASE tbl.OperSeq WHEN '0' THEN '10' ELSE tbl.OperSeq END AS OperSeq ,CASE rsd2.OperSeq WHEN '0' THEN '10' ELSE rsd2.OperSeq END AS FromOperSeq ,CASE WHEN rsd.RouteName LIKE '%REWORK%' THEN ( SELECT TOP 1 c.StepIndex FROM DIM_MATERIAL a JOIN DIM_MaterialStructure b on a.Key_wk=b.Material_wk JOIN DIM_ROUTESTEPDETAIL c on b.RouteName=c.RouteName and c.OperSeq=tbl.OperSeq and OperSeqFlag='TRUE' join AUDIT_JOB d on b.audit_id = d.audit_id and d.post_end_dt <= @Date WHERE a.MaterialName=tbl.MaterialName ORDER BY d.post_end_dt desc ) ELSE rsd.StepIndex end StepIndex ,CASE WHEN rsd.RouteName LIKE '%REWORK%' THEN ( SELECT TOP 1 c.StepIndex FROM DIM_MATERIAL a JOIN DIM_MaterialStructure b on a.Key_wk=b.Material_wk JOIN DIM_ROUTESTEPDETAIL c on b.RouteName=c.RouteName and c.ToOperSeq=tbl.OperSeq and OperSeqFlag='TRUE' join AUDIT_JOB d on b.audit_id = d.audit_id and d.post_end_dt <= @Date WHERE a.MaterialName=tbl.MaterialName ORDER BY d.post_end_dt desc ) ELSE rsd2.StepIndex end FromStepIndex ,(SUM(BFQty)+SUM(RtnFromQty)+SUM(RecQty)-SUM(IssueQty)-SUM(RtnToQty)-(SUM(RejQty))+SUM(TrnQty)+SUM(AdjQty)+SUM(SCQty)) AS CFQty FROM @Output TBL JOIN DIM_MATERIAL DM ON TBL.MaterialName=dm.MaterialName AND dm.MainCategory_wk = (SELECT TOP 1 dc.key_wk FROM DIM_Category dc WHERE dc.Category=TBL.Category) LEFT JOIN DIM_ROUTESTEPDETAIL rsd ON rsd.RouteName=tbl.RouteName AND rsd.OperSeq=CASE tbl.OperSeq WHEN '0' THEN '0' ELSE tbl.OperSeq END AND OperSeqFlag='TRUE' AND rsd.Site= @Company LEFT JOIN DIM_ROUTESTEPDETAIL rsd2 ON rsd2.RouteName=tbl.RouteName AND rsd2.ToOperSeq=CASE tbl.OperSeq WHEN '0' THEN '0' ELSE tbl.OperSeq END AND rsd2.OperSeqFlag='TRUE' AND rsd2.Site = CASE tbl.SiteName WHEN 'SIS' THEN 'SIS' ELSE 'INT' END LEFT JOIN DIM_WORKCENTER DW ON rsd.WorkCenter_wk=dw.key_wk WHERE tbl.SiteName=@Site GROUP BY tbl.SiteName, tbl.FromWorkCenter ,tbl.Category ,tbl.MaterialName ,tbl.RouteName,tbl.OperSeq, tbl.StepIndex,dm.Key_wk,rsd.StepIndex,tbl.RouteName, tbl.Material_WK,rsd2.OperSeq,rsd2.StepIndex,dw.WorkCenterName,tbl.ToWorkCenter, rsd.RouteName ) tbla where tbla.CFQty<>0 GROUP BY tbla.SiteName, tbla.FromWorkCenter, tbla.Category ,tbla.MaterialName,tbla.OperSeq,tbla.FromOperSeq,tbla.StepIndex,tbla.FromStepIndex ) b where b.CFQty<>0 ORDER BY b.MaterialName ,b.OperSeq ,b.SiteName ,b.FromWorkCenter ,b.Category ,b.FromOperSeq ,b.StepIndex ,b.FromStepIndex 

Answer 1

I have found the problem. it turn out to be the data sequence is different when query from local and remotely

Result Server1:

Seq Name       Location     Category
1   Bob        UK           20
2   Bob        UK           23

Result Server2:

Seq Name       Location     Category
1   Bob        UK           23
2   Bob        UK           20

So when filtering some data is not joined properly as result null