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Alex Rivera
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Consider the following SQL: BEGIN TRAN SET TRANSACTION ISOLATION LEVEL READ COMMITTED INSERT Bands ( Name ) SELECT 'Depeche Mode' UNION SELECT 'Arcade Fire' -- I've indented the inner transaction to make it clearer. BEGIN TRAN SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED SELECT * FROM Bands COMMIT -- What is the isolation level right here? UPDATE Bands SET Name = 'Modest Mouse' WHERE Name = 'Oddest House' COMMIT In sum, we start a transaction and set its isolation level to READ COMMITTED . We then do some random SQL and start another, nested transaction. In this transaction we change the isolation level to READ UNCOMMITTED . We then commit that transaction and return to the other. Now, my guess is that after the inner commit, the isolation level returns to READ COMMITTED . Is this correct?
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