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DBMS Foundations

Introduction

Start with the role of a DBMS and the shape of the course.

Architecture

The major internal layers of a DBMS and why they exist.

Transactions and Recovery

ACID Properties

A revision page covering atomicity, consistency, isolation, and durability.

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Advanced DBMS

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Advanced DBMS

ACID Properties

A revision page covering atomicity, consistency, isolation, and durability.

ACID is the compact mental model for transaction guarantees.

  • Atomicity means the whole transaction commits or rolls back.

  • Consistency means valid states stay valid after each transaction.

  • Isolation means concurrent work should not corrupt logical outcomes.

  • Durability means committed work survives failures.