Remove duplicates and update IDs linked to nonduplicates

Posted by colinr23 on Stack Overflow See other posts from Stack Overflow or by colinr23
Published on 2010-04-23T20:33:38Z Indexed on 2010/04/24 16:43 UTC
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I have two tables, tableA and tableB, linked through a locationID.

TableA has descriptive survey info with each record from a different time (ie unique), while TableB has purely locational information. However, there are lots of duplicates in TableB, yet each has a unique locationID, which has an entry in TableA. I've found plenty posts about removing duplicates from TableB, but how can I update the locationIDs in TableA so they are linked to the unique locations in TableB once duplicates are removed...

Help much appreciated!

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