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19.1 Introduction to Transaction Management
Overview of transaction management in database systems
Importance of ACID properties (Atomicity, Consistency, Isolation, Durability)
Transactions as units of work in database operations
19.2 Transaction States and Lifecycle
Understanding the lifecycle of a transaction
Different states of a transaction (Active, Partially Committed, Committed, Aborted)
Role of the transaction manager in managing transaction states
19.3 Concurrency Control
Introduction to concurrency control mechanisms
Ensuring data consistency in concurrent transactions
Challenges of concurrent access to shared data
19.4 Locking Mechanisms
Overview of locking mechanisms in transaction management
Types of locks: Shared locks, exclusive locks, intention locks
Lock granularities and lock modes
19.5 Two-Phase Locking (2PL) Protocol
Principles of two-phase locking
Strict 2PL vs. Conservative 2PL
Deadlock detection and prevention strategies
19.6 Timestamp-Based Concurrency Control
Introduction to timestamp-based concurrency control
Assigning timestamps to transactions and data items
Validation and serialization based on timestamps
19.7 Multi-Version Concurrency Control (MVCC)
Understanding multi-version concurrency control
Maintaining multiple versions of data items
Read and write operations in MVCC systems
19.8 Isolation Levels
Overview of transaction isolation levels (Read Uncommitted, Read Committed, Repeatable Read, Serializable)
Effects of isolation levels on data consistency and concurrency
19.9 Transaction Logging and Recovery
Role of transaction logs in ensuring durability
Logging techniques: Binary Log (binlog), Write-ahead logging (WAL), undo logging, redo logging
Crash recovery and transaction rollback procedures
19.10 Distributed Transactions
Introduction to distributed transactions
Challenges of distributed concurrency control and atomicity
Two-phase commit (2PC) protocol for distributed transaction coordination
19.11 Optimistic Concurrency Control
Principles of optimistic concurrency control
Versioning and timestamp comparison for conflict resolution
Advantages and limitations of optimistic concurrency control
19.12 Advanced Topics and Emerging Trends
High-performance transaction processing techniques
Transaction management in cloud databases and distributed systems
Future directions in transaction management research and development
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