On 6 May 2010 15:52, Nicholas I <nicholas.domni...@gmail.com> wrote: > > > ---------- Forwarded message ---------- > From: Nicholas I <nicholas.domni...@gmail.com> > Date: Wed, May 5, 2010 at 8:35 AM > Subject: help > To: pgsql-...@postgresql.org > > > Hi, > > I have a table in which the data's are entered like, > > Example: > > One (1) > Two (2) > Three (3) > > I want to extract the data which is only within the parentheses. > > that is > 1 > 2 > 3 > > > Thank You > Nicholas I > > > Use a regular expression:
SELECT substring('this is a test(22)' from '\([0-9]+\)'); This would return 22. Regards Thom