TCL (Transaction Control Language) commands in SQL are used to manage transactions in a database to ensure data integrity. They control how changes are saved or discarded using commands like COMMIT, ROLLBACK, and SAVEPOINT.
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Which TCL command is used to make all changes permanent?
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Question 4 of 15
4. Question
What is the purpose of a SAVEPOINT in SQL?
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Question 5 of 15
5. Question
Which command cancels changes made after a SAVEPOINT?
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Question 6 of 15
6. Question
What happens when you issue a COMMIT?
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Question 7 of 15
7. Question
Which of the following statements about ROLLBACK is true?
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Question 8 of 15
8. Question
Can you use multiple SAVEPOINTs in a single transaction?
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Question 9 of 15
9. Question
Which command removes a previously set savepoint?
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Question 10 of 15
10. Question
What is the default behavior of SQL transactions in many RDBMS?
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Question 11 of 15
11. Question
What is a transaction in SQL?
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Question 12 of 15
12. Question
Which of the following TCL commands can be used to undo part of a transaction?
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Question 13 of 15
13. Question
Which command ends a transaction and discards all changes since the beginning?
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Question 14 of 15
14. Question
After executing COMMIT, what happens to the SAVEPOINTs?
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Question 15 of 15
15. Question
Which TCL command is useful in complex transactions to avoid full rollback?
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Summary
This quiz on TCL (Transaction Control Language) helps learners master SQL commands that ensure data integrity and transaction safety using COMMIT, ROLLBACK, and SAVEPOINT. Ideal for database developers, admins, and students preparing for interviews or exams.
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