Recent content by brucelee073

  1. B

    SQL "Where not exists" (nested loops)

    DO NOT THINK in the normal "NOT IN" way, I consider it as an "attribute" way Think of it in this way. 1. For each person you try to find, his/her hobbies are listed in the innermost connected table, and this person needs to have another attribute which is he/she don't have all the hobbies in...
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