Help on an sql

Hi

I’m looking for some help, I’ve just accessed PGAdmin for the 1^st time as I need to extract a lot of data from my system. When running an sql , the data output return is always a maximum of 542 lines when it should be in the 1000’s. I’m presuming there’s a setting somewhere to allow more results, if anyone can point me in the right direction I’d be grateful?

Regards

James Lapham