I just made the most awesome discovery while using cascading CROSS APPLYs so I thought I'd post it here.
Did you know that inside the CROSS APPLY if you refer to a name that's ambiguous in the left table, that the CROSS APPLY assumes that it is from the inner table? To use the column from the left table (if ambiguous) you must then qualify it with the table alias.
That is awesome cool and very handy to make the code concise!
All right, everybody already knew that so I'll shut up now. :blush: Just had to tell somebody.
Might be something worth mentioning in your article though Chris.
My thought question: Have you ever been told that your query runs too fast?
My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.
Need to UNPIVOT? Why not CROSS APPLY VALUES instead?[/url]
Since random numbers are too important to be left to chance, let's generate some![/url]
Learn to understand recursive CTEs by example.[/url]
[url url=http://www.sqlservercentral.com/articles/St