DateDiff, IsNull? - Mailing list pgsql-sql

From Bill
Subject DateDiff, IsNull?
Date
Msg-id 9lb25o$psq$1@news.tht.net
Whole thread Raw
Responses Re: DateDiff, IsNull?  (Alan Gutierrez <alangutierrez@hotmail.com>)
Re: DateDiff, IsNull?  ("Josh Berkus" <josh@agliodbs.com>)
List pgsql-sql
Hello all,
 I am a newbie to postgreSQL, is it possible to write a "DateDiff",
"IsNull" function work same as the one in SQL Server and are there and
sample out there? And is it possible to override the existing function and
operator like "+" to become a concate?

Regards
Bill




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