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by j-kidd
4763 days ago
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For interview question, the keyword I like best would be EXISTS. Sadly, many developers write SQL for years without knowing its existence. If I am not mistaken, the propel ORM of symfony doesn't even have native support for it. As shown by codegeek, the 6 questions here can be answered without needing sub-query. Maybe we can add something like "List employees who are not working alone in their department" |
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