RE: zero-length string

[Nick Hoffman [UWO]]

How exactly do I set the values of vars to undef? Like this?:

foreach $temp (%Info)
        {
        if ($Info{$temp} eq "")
                {$Info{$temp} = undef;}
        }

Thanks,
        Nick

>  -----Original Message-----
>  From: Bart Lateur [mailto:[EMAIL PROTECTED]]
>  Sent: July 30, 2002 3:23 PM
>  To: DBI-Users
>  Subject: Re: zero-length string
>  
>  
>  On Tue, 30 Jul 2002 15:16:18 -0400, Nick Hoffman [UWO] wrote:
>  
>  >I'm trying to insert into a table where only 3 fields (1 being 
>  the primary
>  >key) are required, yet I get the following error when I execute:
>  >
>  >---------------
>  >Died while executing:
>  >[Microsoft][ODBC Microsoft Access Driver] Field 
>  'Volunteers.Email' cannot be
>  >a zero-length string. (SQL-S1000)(DBD: st_execute/SQLExecute err=-1)
>  >---------------
>  >
>  >However, when I look at the design view of the table Volunteers 
>  (Access2000
>  >DB), the Email field is not required.
>  
>  To Access, there is a difference between a zero length string, and a
>  NULL. The latter should be acceptable, according to what you say, while
>  the former isn't.
>  
>  So: if you find a zero length string, replace it with undef. that should
>  be enough.
>  
>  -- 
>       Bart.