Re: Empty String Parameters are Illegal in ADO?

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#5355

From: J. R. Antley
Date: Sat, 09 Jun 2001 09:06

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Hi Arnie,

Don't know all the internals to your setup, but I see stuff like this when
MSAccess' "Required' field is set to 'Yes.'  Could it be something so
simple?

JR

"Arnie Mauer" <arnie@marketexpert.com> wrote in message
news:3b20ed67_2@dnews...
> In a parameterized INSERT statement in a TADOQuery, when setting
> q->Parameters->ParamByName( "foo" )->Value = "";
> will cause q->ExecSQL() to throw an excpetion of: "Parameter object is
> improperly defined.  Inconsistent or incomplete information
> was provided."  Same goes for a NULL AnsiString.
>
> The TParameter Value == NULL and Length == 0.  The DataType
> has been properly set to ftString after the assignment.  What's
> wrong with a NULL string?
>
>

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Subject: Re: Empty String Parameters are Illegal in ADO?
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