Subject | Re: [IBO] How to know if a query is empty with an IB_Cursor |
---|---|
Author | Martijn Tonies |
Post date | 2005-12-29T12:59:25Z |
> Strange but, when I'm doing :Hmm, although "ID" probably never is NULL, this is not the
>
> Close ;
> Prepare ;
> ParamByName('ID').AsInt64 := id ;
> First ;
> a := FieldByName('ID').IsNull ;
>
> Then :
> if the Cursor is in AutoFetchAll=true then a = false
> if AutoFetchAll is set to false, a = true... with the same data...
>
> So it does not work with AutofetchAll = true.
> I dont understand...
> Should I set AutoFetchAll to true or false ?
way to check if there's data or not.
An empty resultset does not return NULL for it's columns, it
doesn't return _anything_ at all.
Martijn Tonies
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