Re: [GENERAL] date format problem
hi bill Null fields shouldnt be the cause of the problem.. A null text field gets translated to a null datetime.. The problem must be because ur database might be specifying the field to be NOT NULL.. Check it out .. If thats the cause there is no way but to drop that constraint.. Hope this helps Anand Raman - Original Message - From: Bill Barnes <[EMAIL PROTECTED]> To: Anand Raman <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Wednesday, May 03, 2000 1:51 PM Subject: RE: [GENERAL] date format problem > 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" <[EMAIL PROTECTED]> = > >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 <[EMAIL PROTECTED]> > >To: <[EMAIL PROTECTED]> > >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 > >> > >> > >> This e-mail has been sent to you courtesy of OperaMail, a > >> free web-based service from Opera Software, makers of > >> the award-winning Web Browser - http://www.operasoftware.com > >> > >> > > > This e-mail has been sent to you courtesy of OperaMail, a > free web-based service from Opera Software, makers of > the award-winning Web Browser - http://www.operasoftware.com > >
RE: [GENERAL] date format problem
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="unknown";
} 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" <[EMAIL PROTECTED]> =
>>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 <[EMAIL PROTECTED]>
>>To: <[EMAIL PROTECTED]>
>>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
>>>
>>>
>>> This e-mail has been sent to you courtesy of OperaMail, a
>>> free web-based service from Opera Software, makers of
>>> the award-winning Web Browser - http://www.operasoftware.com
>>>
>>>
>
>
>This e-mail has been sent to you courtesy of OperaMail, a
>free web-based service from Opera Software, makers of
>the award-winning Web Browser - http://www.operasoftware.com
>
>
>
>
RE: [GENERAL] date format problem
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" <[EMAIL PROTECTED]> = >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 <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >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 >> >> >> This e-mail has been sent to you courtesy of OperaMail, a >> free web-based service from Opera Software, makers of >> the award-winning Web Browser - http://www.operasoftware.com >> >> This e-mail has been sent to you courtesy of OperaMail, a free web-based service from Opera Software, makers of the award-winning Web Browser - http://www.operasoftware.com
Re: [GENERAL] date format problem
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 <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> 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 > > > This e-mail has been sent to you courtesy of OperaMail, a > free web-based service from Opera Software, makers of > the award-winning Web Browser - http://www.operasoftware.com > >
