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A dirty write occurs when two transactions concurrently attempt to update the same data item, and one transaction overwrites the changes made by the other before either transaction commits.
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From a user's perspective, transactions are coherent work units.
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PostgreSQL is a relational database management system
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A Phantom Read occurs when two or more transactions are each waiting for a resource that is held by another transaction?
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MongoDB is not a type of relational database management system.
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Is auditing an unnecessary security measure when monitoring access and changes?
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EntityManager's save() method is used to update an existing entity.
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PRIMARY KEY is used to uniquely identify each record in a table.
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Lowering the isolation level to 'READ UNCOMMITTED' increases the risk of reading inconsistent data due to the possibility of dirty reads
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NOT NULL is an integrity constraint.
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