What are the different transaction isolation levels in SQL Server?
An example of an AI chatbot conversation about SQL Server transaction isolation levels.
What are the different transaction isolation levels in SQL Server?
SQL Server has five transaction isolation levels: Read Uncommitted, Read Committed, Repeatable Read, Serializable, and Snapshot.
Can you explain what Read Committed means?
Read Committed is the default isolation level. It prevents dirty reads by ensuring that any data read is committed at the moment it is read.
What about Serializable? How does it differ?
Serializable is the strictest isolation level. It ensures complete isolation from other transactions by locking the data set, preventing other transactions from inserting or modifying data until the current transaction is complete.
When should I use Snapshot isolation?
Snapshot isolation is useful when you want to avoid locking and allow readers to access the last committed version of the data, improving concurrency.
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