What are the concurrency control techniques?
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Concurrency control techniques are used to ensure the consistency and integrity of a database when executing multiple transactions simultaneously. These techniques include Two-Phase Commit (2PC) protocol, Three-Phase Commit (3PC) protocol, Deadlock-Free Cell lock (DFCL) algorithm, locking, timestamp ordering, and optimistic validation method. The 2PC and 3PC protocols are used in distributed database systems to handle conflicts, deadlock, and rolled-back transactions . One technique for concurrency control involves controlling access requests to overlapping data based on transaction priority . Traditional techniques such as locking, timestamp ordering, and optimistic validation have been evaluated and a new technique has been proposed to improve optimistic validation . Various concurrency control techniques have been discussed, compared, and studied for their advantages and disadvantages . These techniques aim to maintain consistency, performance, and correctness of the database, and can be categorized as pessimistic, optimistic, multiversion, and two-phase locking techniques .
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| Papers (5) | Insight |
|---|---|
| The paper discusses various concurrency control techniques but does not explicitly list them. | |
| The paper discusses various concurrency control techniques, including pessimistic, optimistic, multiversion, and two-phase locking techniques. | |
11 Jan 2019 | The concurrency control techniques mentioned in the paper are locking, timestamp ordering, and optimistic validation. |
| The provided paper discusses a technique for concurrency control in a database system, but it does not explicitly mention other concurrency control techniques. | |
| The paper discusses the Two-Phase Commit (2PC) protocol, Three-Phase Commit (3PC) protocol, and Deadlock-Free Cell lock (DFCL) algorithm as concurrency control techniques in DBMS. |
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