What are SQL isolation levels and why are they important?
SQL isolation levels define how transaction integrity is visible to other transactions. They are crucial for managing concurrency and ensuring data consistency.
Can you explain the different isolation levels available in SQL?
Sure! The main isolation levels are Read Uncommitted, Read Committed, Repeatable Read, and Serializable. Each level balances consistency and performance differently.
How do I decide which isolation level to use for my application?
Consider factors like the need for data consistency, the level of concurrency, and the performance impact. For example, use Serializable for high consistency needs.
What are the trade-offs between using Read Committed and Serializable?
Read Committed offers better performance but may allow phantom reads, while Serializable ensures complete isolation at the cost of performance.
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