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  1. GeorgeAth

    Copy Data from one table to another

    Thank you for your interest. Just for the record I post my "unorthodox" solution to my problem. I passed the database to Matlab creating a matrix with the triplets User-Item-Ratings (conveniently enough all three were Integers e.g User1 was represented as "1") and produced my desired table in...
  2. GeorgeAth

    Copy Data from one table to another

    To add to my post: I am able to do it by using two nested loops (the outer iterating all items and the inner all users) but it is a case of "poor" programming (and most importantly too slow too). I hope that there is an easier, more effective way to do it that I cant figure out....
  3. GeorgeAth

    Copy Data from one table to another

    Hello all. I am rather inexperienced at SQL and I am facing a problem for which I would appreciate some help: I have a table A which looks like: ID User Item Rating ------------------------------------- 1 User1 Item1 SomeRating1 2 User1 Item2 SomeRating2 3 User2 Item1...

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