itishree sukla, 05.07.2013 10:29:
> Hello Every one,
>
> Is Postgresql providing triggers on DB level, schema level ( in same DB)?
>
You are probably referring to "DDL" triggers and similar things (a trigger when a table is created or dropped, a user logs in and so on).
The answer is no as far as I know.
Postgres 9.3 will add "event triggers", but they can only be written in SQL