BR><BR>Is there a way to use aggregate functions and only group on specific keys, rather than every column? For instance, I have the following query a lot.<BR><BR>Select (lots of junk), Count ...

This SQL feature allows you to query within ... ensuring that you do not have a match. Use aggregate functions for comparison In addition to using subselects to examine data in related tables ...

I realized how much easier my life would be if SQL had a mode() aggregate function. (I'm using it in the mathematical sense). I'm guessing that either I use SQL in a wierd way or there is a good ...

A window is defined using the OVER() clause in SQL. Functions are predefined in SQL and you use them to perform operations on data. They let you do things like aggregating data, formatting ...