SELECT and the need for cursors (?)

Hi,

I am in the process of porting my app from using MySql to PostgreSQL.

With MySql, when I do SELECT queries, I have never needed to know
about or use Cursors.  Now, I find that I have to use them ;-(

I am not an SQL expert, so maybe there's a good reason for the need
for cursors.  Anyone have any ideas?

Sorry if this question was too basic ;-) My area is network
management, not SQL variations between vendors ;-)

TIA,

--
bryan [at] grateful [dot] net
http://Grateful.Net