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MySQL IN Clause - Tutorials Point. MySQL EXISTS examples MySQL SELECT EXISTS example. Let’s take a look at the customers and orders tables in the sample database. MySQL UPDATE EXISTS example., Learn how to update your existing MySQL data with Tizag.com's MySQL Update lesson..

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If the below update isn't executed, what happens/ is the lock released? should I just put an update that doesn't fo anything i the els condition? } else { $db If the below update isn't executed, what happens/ is the lock released? should I just put an update that doesn't fo anything i the els condition? } else { $db

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