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Editorial Team
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Asked: 2026-05-31T23:34:38+00:00

I have the following where clause: B.GivenName=@GivenFirstName) or ((@GivenFirstName = ”) or (@GivenFirstName is

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I have the following where clause:

B.GivenName=@GivenFirstName)  
or ((@GivenFirstName = '""') 
or  (@GivenFirstName is null)) 
or (B.GivenName like +'%'+ @GivenFirstName) 
or (B.GivenName like  @GivenFirstName + '%' )  
or (B.GivenName like + '%'+ @GivenFirstName + '%' ) 
or (CONTAINS(B.GivenName, @GivenFirstName,LANGUAGE 'german'))

If a firstname is not entered into the search I get the error:

Msg 7645, Level 15, State 2, Procedure Search_test, Line 179
Null or empty full-text predicate.

I tried wrapping the @GivenFirstName in 

COALESCE(@GivenFirstName, '""')

but it doesn’t work either.

Is there some way I can use @GivenFirstName OR ‘””‘ if @GivenFirstName is null inside the where clause?

Thanks,
Thomas

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1 Answer

  1. Editorial Team

    thanks for the help everyone. I was originally using this so that when accented characters such as é are entered into the search they still return results without accents and vice versa..

    I ended up just using a strip accents function like so:

    (((dbo.fn_StripAccents(B.GivenName)=dbo.fn_StripAccents(@GivenFirstName))  
or ((@GivenFirstName = '""') 
or (@GivenFirstName is null)) 
or (dbo.fn_StripAccents(B.GivenName) like +'%'+ dbo.fn_StripAccents(@GivenFirstName)) 
or (dbo.fn_StripAccents(B.GivenName) like  dbo.fn_StripAccents(@GivenFirstName) + '%' )     
or (dbo.fn_StripAccents(B.GivenName) like + '%'+ dbo.fn_StripAccents(@GivenFirstName) + '%' ))
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