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Thanks for the solution. I'm wondering why it doesn't work if I change "where exists" to "where (x,y) in";
the second one the subquery doesn't seem to return anything...
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You are viewing a single comment's thread. Return to all comments →
Thanks for the solution. I'm wondering why it doesn't work if I change "where exists" to "where (x,y) in";
the second one the subquery doesn't seem to return anything...