Question: session begins SET GLOBAL TRANSACTION ISOLATION LEVEL SERIALIZABLE; session ends session begins SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; transaction 1 transaction 2 SET TRANSACTION

session begins
SET GLOBAL TRANSACTION
ISOLATION LEVEL SERIALIZABLE;
session ends
session begins
SET SESSION TRANSACTION
ISOLATION LEVEL READ UNCOMMITTED;
transaction 1
transaction 2
SET TRANSACTION
ISOLATION LEVEL REPEATABLE READ;
transaction 3
transaction 4
SET TRANSACTION
ISOLATION LEVEL READ COMMITTED;
transaction 5
session ends
Select each transaction's isolation level.
session begins SET GLOBAL TRANSACTION ISOLATION LEVEL SERIALIZABLE; session ends session

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