Recently, I was looking for some articles on treatment of nulls in databases. This was a surfing thread that actually originated as my attempt to find some already done benchmarks on coalesce(col,'') != '' vs. col is not null for performance...
I'm a big fan of Fabian Pascal. Here are 10 Articles/Pages/Responses that I like the best. =P You can find tons more from these though. They are almost all pure gold. =) On Grinding Water: Reply to St. Laurent NO THEORY, NO RELATIONAL, NO THINKING...