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多项选择题 User SCOTT executes the following command on the EMP table but has not issued COMMIT, ROLLBACK,or any data definition language (DDL) command:  SQL> SELECT job FROM emp  2  WHERE job=’CLERK’ FOR UPDATE OF empno;  SCOTT has opened another session to work with the database. Which three operations would wait when issued in SCOTT’s second session?()

A、LOCK TABLE emp IN SHARE MODE;

B、LOCK TABLE emp IN EXCLUSIVE MODE;

C、DELETE FROM emp WHERE job=’MANAGER’;

D、INSERT INTO emp(empno,ename) VALUES (1289,’Dick’);

E、SELECT job FROM emp WHERE job=’CLERK’ FOR UPDATE OF empno;

  • A,B,E
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