taigovinda (8/2/2013)
Good point... For the sample data that is definitely smarter. In my actual data I have about 6 fields that are like 'address' in that there could be multiple distinct values and I only want to pick one - I suppose I could put min() for each one but that would probably be more expensive, right?
Actually MIN would be less expensive than using Row_Number. Since you say you only want to pick one, you have to either make a decision about the rules for which one or get a random one.
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