efficient query help please.

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efficient query help please.

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08-29-2007, 12:31 PM

SDB

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efficient query help please.

a) If i have a threadid, what is the most efficient way to find out if a specific userid has posted in that thread?

b) if i have a query which returns a list of threadids, what is the most efficient join or similar to use in order to establish on a line by line basis whether the same specific userid has posted in that thread?

Thanks in advance.

Simon

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