What are some examples of transaction isolation levels?
An example of an AI chatbot conversation about transaction isolation levels in databases.
What are some examples of transaction isolation levels?
Transaction isolation levels define how transaction integrity is visible to other transactions. Common examples include: 1. Read Uncommitted 2. Read Committed 3. Repeatable Read 4. Serializable.
Can you explain the differences between these levels?
Sure! 1. Read Uncommitted: Allows dirty reads. 2. Read Committed: Prevents dirty reads but allows non-repeatable reads. 3. Repeatable Read: Prevents dirty and non-repeatable reads but allows phantom reads. 4. Serializable: The strictest level, preventing all anomalies.
Which level is the most commonly used?
Read Committed is the most commonly used isolation level as it balances performance and data integrity.
What are the trade-offs of using Serializable?
Using Serializable ensures the highest data integrity but can lead to increased locking and reduced concurrency, impacting performance.
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