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But there are different hacker_id with same name. Why would we need to group by with name also?
EDIT:
Is it because we first group by hacker_id and then by hacker name...? So nothing goes out of order...
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You are viewing a single comment's thread. Return to all comments →
But there are different hacker_id with same name. Why would we need to group by with name also?
EDIT:
Is it because we first group by hacker_id and then by hacker name...? So nothing goes out of order...