What are some databases that use MVCC?
An example of an AI chatbot conversation about databases utilizing MVCC for concurrency control.
What are some databases that use MVCC?
Several databases implement Multi-Version Concurrency Control (MVCC), including PostgreSQL, Oracle, and MySQL.
How does MVCC improve performance in these databases?
MVCC allows multiple transactions to occur simultaneously without locking, reducing wait times and improving throughput.
Are there any downsides to using MVCC?
Yes, MVCC can lead to increased storage requirements due to multiple versions of data being kept, and it may complicate garbage collection.
Can you give an example of how MVCC works in PostgreSQL?
In PostgreSQL, when a transaction modifies a row, it creates a new version of that row, allowing other transactions to read the old version until the transaction is committed.
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