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Which two tasks require subqueries? (Choose two.)

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Which three statements must be true so that the SALES user can create tables in SALES_Q1?
(Choose three.)

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The table has 100 rows.
Examine this sequence of statements issued in a new session:
INSERT INTO books VALUES (‘ADV112’, ‘Adventures of To m Sawyer’, NULL, NULL);
SAVEPOINT a;
DELETE FROM books;
ROLLBACK TO SAVEPOINT a;
ROLLBACK;
Which two statements are true? (Choose two.)