Can you explain what transaction isolation is in SQL?
Transaction isolation in SQL refers to the degree to which the operations in one transaction are isolated from those in other transactions.
What are the different levels of transaction isolation?
There are four main levels: Read Uncommitted, Read Committed, Repeatable Read, and Serializable.
How do these isolation levels affect data consistency?
Higher isolation levels provide more consistency but can lead to reduced concurrency and performance.
Can you give an example of when to use Serializable?
Serializable is best used in scenarios where data integrity is critical, such as financial transactions.
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