T.Ashish (9/30/2013)
You add a column somewhere in the start or middle or your table and all ordinals will be changed. Now you have to correct all of your queries.
I believe you mean:
You add a column somewhere in the start or middle or your return results and all ordinals may be changed. Now you have to correct all of your queries this query.
Adding columns to the table will have no impact unless you're doing something else that is bad form, which is SELECT *.
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