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Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Related Hot Network Questions. Simply get around this by making your rollup a subquery, and doing the ifnulls in the main select What you're looking for is a case statement. What you're saying is that under a certain condition replace the found value with the one specified.
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Nathan Sebhastian is a software engineer with a passion for writing tech tutorials. Learn JavaScript and other web development technology concepts through easy-to-understand explanations written in plain English. Level up your programming skills I'm sending out an occasional email with the latest programming tutorials.
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