Is it worth it to go and change queries that were written:
select count(*) from x_table
select count(x_id) from x_table
if x_id is the primary key. I'm thinking that it's worth it because the pk will be indexed, making the count faster...but i'm not sure if it's really worth the time.
I have to be compatible with Oracle and Sql Server 2000...if that makes a difference...