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codeN’ on Instagram: "Real life stories to understand Real System Design concepts. Pessimistic locking assumes conflicts will happen, so it locks the data before a transaction starts modifying it. Think of it as: “I’ll lock the file before editing, so no one else can even touch it until I’m done.” When one transaction locks a record, other transactions must wait until the lock is released. #database #systemdesign #dsa #reelsinstagram #programming"
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