inserting a value with an '

This code errors because rs!StagingField has a value with a ' in it like this "john smith's house".  

  strUpdate = "UPDATE Master" & _
   " SET Master." & strFieldName & "='" & rs!StagingField & "'

   CurrentDb.Execute strUpdate, dbFailOnError
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Jim Dettman (Microsoft MVP/ EE MVE)President / OwnerCommented:
My method of handling it:

 strUpdate = "UPDATE Master" & _
   " SET Master." & strFieldName & "=" & chr$(34) & rs!StagingField & chr$(34)

as I don't often see a quote in text.  

But there are a variety of them.  Some call a custom function replacing all single and double (apostrophe and quote) with a double character so it works, use a defined constant, or simply strip them out.


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vbnetcoderAuthor Commented:
Dale FyeOwner, Developing Solutions LLCCommented:
I use one of those functions Jim mentioned:

Public Function fnWrap(WrapWhat as Variant, Optional WrapWith as string = """") as String

    if isNull(WrapWhat) Then
        fnWrap = "NULL"   'this returns a text string NULL rather than the value NULL
        fnWrap = WrapWith & Replace(WrapWhat, WrapWith, WrapWith & WrapWith) & WrapWith
    end if
End Function

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Then I call this as:

 strUpdate = "UPDATE Master SET Master.[" & strFieldName & "] =" & fnWrap(rs!StagingField)

By default, it uses quotes, but you can use ' as the WrapWith character to pass values to SQL Server, or even # to wrap a date value.

BTW,  I added brackets around your strFieldName because occassionally, we have to deal with field names with spaces or which are reserved words, and it is safer to wrap the field name, just in case.

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