Grokking Database Fundamentals for Tech Interviews
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Understanding the Transaction
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What is a Transaction?

A transaction in a database represents a single, logical unit of work. It ensures that a series of operations either completes successfully as a whole or fails entirely, leaving the database unchanged. This concept is fundamental to maintaining the database's integrity, ensuring consistency, and allowing safe retries without side effects.

A transaction can either be:

  • Committed: All operations within the transaction are successfully executed and changes are permanently saved.

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