Transactions, all or nothing
Group changes with BEGIN and COMMIT so they all happen or none do, undo them with ROLLBACK, and see why every in-game purchase or bank transfer needs this.
- The skill
- Make several changes happen together or not at all.
- You make
- Purchases and coin transfers in a game's shop that can't go half wrong.
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Builds on 25 Checkpoint: the film site. Free to try: SQL Foundations and the playground.
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5 exercises in this lesson, checked as you type. Premium opens every lesson after Foundations, in all four courses.
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