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#1
May 20th, 2004, 02:06 PM
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Help!- simple code advice
I'm definitely a newb, so bear with.
in an sql database i have 2 tables, A and B. each is loaded with a phone number. i would like to take A, and compare it to B. If A is anywhere on B, do nothing. If A is nowhere on B, export it to a new table, we'll call C another way would be to have them compare and if A is on B, delete the record. If A is not on B, leave it alone, and now A will be the new table with clean data. Any help? keep in mind i'm a moron, so you'll have to walk me through all the steps. Thanks Mike
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#2
May 20th, 2004, 03:35 PM
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do you mean IN?
If A is IN B? Something like this will get you a list of phone numbers from Table A, that aren't in TableB Code:
SELECT DISTINCT Phone
FROM A
WHERE Phone NOT IN
(
SELECT DISTINCT Phone
FROM B
)
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