Which two statements complete a transaction? （）A、DELETE employees;B、DESCRIBE employees;C、ROLLBACK TO SAVE POINT C;D、GRANT SELECT ON employees TO SCOTHE、ALTER TABLE employees SET UNUSED COLUMN sal;F、Select MAX(sal) FROM employees WHERE department _ id 20;
Which two statements complete a transaction? （）
- A、DELETE employees;
- B、DESCRIBE employees;
- C、ROLLBACK TO SAVE POINT C;
- D、GRANT SELECT ON employees TO SCOTH
- E、ALTER TABLE employees SET UNUSED COLUMN sal;
- F、Select MAX(sal) FROM employees WHERE department _ id 20;
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