Re: [sqlite] Date and time in RFC 822

2008-07-08 Thread Dennis Cote
Wojciech wrote:
> I would ask, if there is any possibility to sort data in sqlite tables by
> date, which is stores in RFC 822 format. I have data in this format, which
> comes from RSS channels - in RSS specification RFC 822 it's required.
> 
> Sample date looks like that: Sat, 07 Sep 2002 00:00:01 GMT
> 

I think you will have to create a custom function that converts your RFC 
822 date strings into ISO 8601 date strings. The ISO 8601 strings will 
be sorted into date order by a simply lexical sort.

   SELECT MAX(RFC822toISO8601(date_field)) FROM table

User defined functions are described at http://www.sqlite.org/capi3.html

HTH
Dennis Cote
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[sqlite] Date and time in RFC 822

2008-07-08 Thread Wojciech
Hi,

I would ask, if there is any possibility to sort data in sqlite tables by
date, which is stores in RFC 822 format. I have data in this format, which
comes from RSS channels - in RSS specification RFC 822 it's required.

Sample date looks like that: Sat, 07 Sep 2002 00:00:01 GMT

I tried with something like 

SELECT MAX(date(date_field)) FROM table

...but it isn't working. I readed
http://www.sqlite.org/cvstrac/wiki?p=DateAndTimeFunctions and searched a
couple of web resources, but I didn't find any working solution.

Thank You kindly for any help,

WK


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