Re: How to determine current database?

On Feb 13, 2004, at 6:05 PM, Ron St-Pierre wrote:

> I am using postgres 7.3.4 and need to be able to determine which
> database a query is being run in (from a script). pg_database lists
> databases but doesn't tell me which one is currently active. Is there
> a query I can use along the lines of:

The built-in function "current_database()" returns the current database
name.

=# select current_database();
  current_database
------------------
  testing
(1 row)

Use it in your update statements too.

eric

> UPDATE tblUpdates SET xxx=1234 WHERE pg_current = TRUE;
> or
> UPDATE tblUpdates SET xxx=1234 WHERE pg_current = thisDBname;
>
> We have about 15 databases all set up identically and when the
> structure changes I run scripts to update them to ensure that they are
> all the same. I need to create two new databases which have slight
> changes  (different default values - for now) and want to be able to
> have my scripts be able to determine which database their running
> from.
>
> Thanks
>
> Ron
>
>
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