Search Postgresql Archives

Re: SQL question

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> I have a table that has 3 date columns :
> 
> create table xyz (
> xyz_id integer,
> date1   timestamp,
> date2   timestamp,
> date3   timestamp
> )
> 
> 
> I want to select in a query the xyz_id and the max date column for
> each row
> something like :
> create table temp2 as select xyz_id (max date?) where ...

Is this what you want?

Select xyz_id, greatest(date1,date2,date3) from xyz where...

http://www.postgresql.org/docs/8.3/interactive/functions-conditional.html#AE
N14508




-- 
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux