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Editorial Team
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Asked: 2026-05-27T15:38:59+00:00

I have the following table: ApprovalOrder EntityCode ProjectCode 1 1415 NULL 2 1415 NULL

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I have the following table:

ApprovalOrder EntityCode ProjectCode

1 1415 NULL

2 1415 NULL

3 1415 NULL

And the following code:

    select 
        de.ApprovalOrder + de. EntityCode + isnull(de.ProjectCode, '') as 'RowID'
    from workflow.delegation_engine de
    where EntityCode = 1415 and DelegationCode = 'CAT1'

Which is unfortunately returning an additive result. I’m aware this is what it should do given the above however how can I make it concatenate the result of each column into one result whilst also only including de.ProjectCode when the result it not NULL (this can be characters or integer values).

For example, if I was running query just on the first row of this table I’d like the returned result to be ‘11415’.

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1 Answer

  1. Editorial Team

    To be explicit about what you are doing, I would cast each item to a VARCHAR() first.

    CAST(de.ApprovalOrder AS VARCHAR(16)) + CAST(de.EntityCode AS VARHCAR(16)) + ISNULL(CAST(de.ProjectCode AS VARCHAR(16)), '')

    If you want a hack to avoid the explicit casting, start the derivation with a string…

    '' + de.ApprovalOrder + de.EntityCode + ISNULL(de.ProjectCode, '')
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