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Editorial Team
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Asked: 2026-06-01T04:12:28+00:00

I am trying to insert data from one table that was imported from an

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I am trying to insert data from one table that was imported from an Excel file into another table with the same exact columns. When I go to insert all the data 

    INSERT INTO [NQL_RawData].[dbo].[WM_MFGPNs]
    ([Manufacturer],[MPNWP],[MFGPN],[Cage],[Url],[DataSheetUrl],[Description],[Status],[NRND],[RoHS],[PbFree],[LOT],[LeadTime],[AddedOn],[AddedBy])

    SELECT [Manufacturer],dbo.BuildPNWP([MFGPN],0),[MFGPN],[Cage],[Url],[DataSheetUrl],[Description],[Status],[NRND],[RoHS],[PbFree],[LOT],[LeadTime],[AddedOn],[AddedBy]

    FROM [NQL_RawData].[dbo].[wm_BulkImport] WHERE Manufacturer = 'MFG NAME'

it comes up with this error message

Msg 2627, Level 14, State 1, Line 1
Violation of PRIMARY KEY constraint ‘PK_MFGPNs_1’. Cannot insert duplicate key in object ‘dbo.WM_MFGPNs’.
The statement has been terminated.

So I changed the query to include WHERE NOT EXISTS 

    INSERT INTO [NQL_RawData].[dbo].[WM_MFGPNs]
    ([Manufacturer],[MPNWP],[MFGPN],[Cage],[Url],[DataSheetUrl],[Description],[Status],[NRND],[RoHS],[PbFree],[LOT],[LeadTime],[AddedOn],[AddedBy])

    SELECT [Manufacturer],dbo.BuildPNWP([MFGPN],0),[MFGPN],[Cage],[Url],[DataSheetUrl],[Description],[Status],[NRND],[RoHS],[PbFree],[LOT],[LeadTime],[AddedOn],[AddedBy]

    FROM [NQL_RawData].[dbo].[wm_BulkImport] 

    WHERE NOT EXISTS( 
    SELECT [MFGPN] 
    FROM [NQL_RawData].[dbo].[WM_MFGPNs]
    WHERE Manufacturer = 'MFG NAME'     
    )

But I still receive the same error message. Any ideas?

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1 Answer

  1. Editorial Team

    At a wild guess, the PK of WM_MFGPNs isn’t Manufacturer, but another column, such as MFGPN.
    Assuming this to be the case, your insert becomes

    INSERT INTO [NQL_RawData].[dbo].[WM_MFGPNs]
    ([Manufacturer],[MPNWP],[MFGPN],[Cage],[Url],[DataSheetUrl],[Description],[Status],[NRND],[RoHS],[PbFree],[LOT],[LeadTime],[AddedOn],[AddedBy])

    SELECT [Manufacturer],dbo.BuildPNWP([MFGPN],0),[MFGPN],[Cage],[Url],[DataSheetUrl],[Description],[Status],[NRND],[RoHS],[PbFree],[LOT],[LeadTime],[AddedOn],[AddedBy]

    FROM [NQL_RawData].[dbo].[wm_BulkImport] blkimp

    WHERE
       Manufacturer = 'MFG NAME' -- Your original import filter
    AND NOT EXISTS -- Prevent duplicate insertions
    ( 
    SELECT [MFGPN] 
    FROM [NQL_RawData].[dbo].[WM_MFGPNs] mfgpn
    WHERE blkimp.MFGPN = mfgpn.MFGPN
    )

    Edit : OK, Your table has a Composite Primary Key (i.e. the combination of 2 or more fields comprises a unique key).

    INSERT INTO [NQL_RawData].[dbo].[WM_MFGPNs]
    ([Manufacturer],[MPNWP],[MFGPN],[Cage],[Url],[DataSheetUrl],[Description],[Status],[NRND],[RoHS],[PbFree],[LOT],[LeadTime],[AddedOn],[AddedBy])

    SELECT [Manufacturer],dbo.BuildPNWP([MFGPN],0),[MFGPN],[Cage],[Url],[DataSheetUrl],[Description],[Status],[NRND],[RoHS],[PbFree],[LOT],[LeadTime],[AddedOn],[AddedBy]

    FROM [NQL_RawData].[dbo].[wm_BulkImport] blkimp

    WHERE
       Manufacturer = 'MFG NAME' -- Your original import filter
    AND NOT EXISTS -- Prevent duplicate insertions
    ( 
    SELECT [MFGPN] 
    FROM [NQL_RawData].[dbo].[WM_MFGPNs] mfgpn
    WHERE blkimp.MFGPN = mfgpn.MFGPN
          AND blkimp.Manufacturer = mfgpn.Manufacturer
    )
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