11/29/2018.

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Presentation transcript:

11/29/2018

Concurrency Control Techniques Chapter 18 Concurrency Control Techniques

Two-Phase Locking Techniques for Concurrency Control Types of Locks and System Lock Tables Guaranteeing Serializability by Two-Phase Locking Dealing with Deadlock and Starvation

Concurrency Control Based on Timestamp Ordering Timestamps The Timestamp Ordering Algorithm

Multiversion Concurrency Control Techniques Multiversion Techniques Based on Timestamp Ordering Multiversion Two-Phase Locking Using Certify Locks

Validation (Optimistic) Concurrency Control Techniques

Granularity of Data Items and Multiple Granularity Locking Granularity Level Considerations for Locking Multiple Granularity Level Locking

Using Locks for Concurrency Control in Indexes

Other Concurrency Control Issues Insertion, Deletion, and Phantom Records Interactive Transactions Latches

Summary