1z0-071 Exam Dumps | You execute this command: TRUNCATE TABLE depts; Which two are true?

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Question 28/144

You execute this command:
TRUNCATE TABLE depts;
Which two are true?

A. It retains the indexes defined on the table.

B. It drops any triggers defined on the table.

C. A Flashback TABLE statement can be used to retrieve the deleted data.

D. It retains the integrity constraints defined on the table.

E. A ROLLBACK statement can be used to retrieve the deleted data.

F. It always retains the space used by the removed rows

Correct Answer: A,D

The TRUNCATE TABLE command in Oracle SQL is used to quickly delete all rows from a table:
Option A:
It retains the indexes defined on the table. TRUNCATE does not affect the structure of the table, including its indexes.
Option D:
It retains the integrity constraints defined on the table. TRUNCATE does not remove or disable integrity constraints, except for unenforced foreign keys.
Options B, C, E, and F are incorrect because:
Option B: TRUNCATE does not drop triggers; it only removes all rows.
Option C: Flashback Table cannot be used after a TRUNCATE because TRUNCATE is a DDL operation that does not generate undo data for flashback.
Option E: A ROLLBACK cannot be used after a TRUNCATE because TRUNCATE is a DDL command that implicitly commits.
Option F: TRUNCATE may deallocate the space used by the table, depending on the database version and specific options used with the TRUNCATE command.

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