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Question :-

Question 148 You executed the following command before starting a transaction: SQL> SET CONSTRAINTS ALL DEFERRED; What is the effect of this command?
The constraints are enforced at the end of each insert, delete, or update operation.
The deferrable constraints are enforced at the end of the session.
The deferrable constraints are not enforced until they are changed to immediate.
The deferrable constraints are enforced at the end of each transaction.

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