Which two statements complete a transaction? ()
- A、DELETE employees;
- B、DESCRIBE employees;
- C、ROLLBACK TO SAVEPOINT C;
- D、GRANT SELECT ON employees TO SCOTT;
- E、ALTER TABLE employees SET UNUSED COLUMN sal;
- F、SELECT MAX(sal) FROM employees WHERE department_id = 20;
正确答案:D,E
答案解析:有
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