RE: date format problem - Mailing list pgsql-general

From Lincoln Yeoh
Subject RE: date format problem
Date
Msg-id 3.0.5.32.20000503174939.008d0490@pop.mecomb.po.my
Whole thread Raw
In response to RE: date format problem  (Bill Barnes <bbarnes@operamail.com>)
List pgsql-general
I dunno, I'm using 6.5.3 and have no probs pgdumping, pguploading and using
null dates - moved my app to another server etc, and the null dates are
still there. The null dates are dumped as \N which presumably means NULL
(but for some reason typing \N  (two characters - backslash then N) works
for the postgres superuser default password).

So perhaps you could convert dates you want null to \N.

I'm using perl and DBI, and things work fine - a null date is returned as a
perl undefined value (which is different from zero).
e.g.
if not defined($date) {
    $date="<i>unknown</i>";
} else {
    $date=htdate($date);
}

Cheerio,

Link.

At 04:21 AM 03-05-2000 -0400, Bill Barnes wrote:
>Hello Anand:
>
>Thanks for the input.
>
>The problem turned out to be date fields with null values.  Disappointing!
>A lot of my Sybase procedures tested for null dates.
>
>So my workaround was to edit the null dates to a pseudo date.  This is least
>got my database poplulated.  Will try the cast for queries and updates.
>
>I don't know which SQL, Postresql or Sybase, is an extension or
non-compliant.
>
>Bill Barnes
>
>>===== Original Message From "Anand Raman" <araman@india-today.com> =====
>>HI bill
>>Try to cast the field to the datetime type
>>
>>'ur_string_goes_here'::datetime
>>
>>Hope this will help
>>Anand Raman
>>
>>----- Original Message -----
>>From: Bill Barnes <bbarnes@operamail.com>
>>To: <pgsql-general@postgresql.org>
>>Sent: Friday, April 28, 2000 6:09 PM
>>Subject: [GENERAL] date format problem
>>
>>
>>> Hello List:
>>>
>>> Using 6.5.3 on SuSE 6.4.
>>>
>>> Built a table with a date field as type 'datetime'.
>>>
>>> I try to copy a text file to the table and get a 'bad date format'
>>> Dates in the text file may be null, but are in the form 1997-12-15.
>>> Have tried several of the date field types with the same result.
>>> The copy executes properly if I redefine the date field to varchar.
>>>
>>> Thanks for your help.
>>> Bill Barnes
>>>
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