On Thu, 2007-08-23 at 19:08 -0700, Postgres User wrote: > On 8/23/07, Michael Glaesemann <grzm@xxxxxxxxxxxxxxx> wrote: > > > > On Aug 23, 2007, at 20:01 , Postgres User wrote: > > > > >>> Yes, I read the manual. I think I had a problem because of the > > >>> special chars (< / >) that I'm trying to search for... Still > > >>> looking > > >>> for the right syntax. > > >> > > >> Why don't you show us what you've tried and the errors you're > > >> getting? That way we can help you figure out what you're doing wrong > > >> rather than just give you an answer. > > >> > > >> Michael Glaesemann > > > > > > SELECT substring(data_field from '<name>(.)</name>') > > > FROM myTable > > > > Looks like you might want to brush up on regular expressions in > > general. Your expression will match a single character between the > > <name> tags. You might want to try something like .+ instead. > > > > Michael Glaesemann > > You're right, that was a typo, I didn't copy and paste. > I found the problem, I was using 2 forward slashes instead of a > backslash + forward slash when pattern matching. The correct regex to > extract my substring: > > substring(data_field from '<name>(.+)<\/name>') FWIW, I find the following site extremely useful when trying to create moderately complex regular expressions: http://www.rexv.org. HTH, Mark. -- ILande - Open Source Consultancy http://www.ilande.co.uk ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
