Transaction Isolation Levels-Concurrency and Multiversioning
The ANSI/ISO SQL standard defines four levels of transaction isolation, with different possible outcomes for the same transaction scenario. That is, […]
Read More →The ANSI/ISO SQL standard defines four levels of transaction isolation, with different possible outcomes for the same transaction scenario. That is, […]
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A common use of REPEATABLE READ in databases that employ the shared read locks could be for lost update prevention. Note […]
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Concurrency controls are the collection of functions that the database provides to allow many people to access and modify data simultaneously. […]
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The READ UNCOMMITTED isolation level allows dirty reads. Oracle does not make use of dirty reads, nor does it even allow […]
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