Jomon,
> 1) In Exceptions ORACLE have something called WHEN OTHERS THEN cluase.I
> can't find a replacement for that in
> PostGreSQL.
PL/pgSQL currently does not handle exceptions at all. This is on the TODO
list.
> 2 Oracle have a function USERENV to get the user session
> information.Is there any replacement available in PostGres. ?
There are several variables and tools which provide current user and session
information. See the "PostgreSQL Administration" section of the
documentation.
> 3 Is there any replace available for INSTEAD OF INSERT/DELETE/UPDATE
> for triggers in PostGreSQL.
In Postgres, this is generally done through the RULES system instead of
triggers. Please lookup CREATE RULE in the online docs.
--
-Josh BerkusAglio Database SolutionsSan Francisco
