The HR user executes the following query on the EMPLOYEES table but does not issue COMMIT, ROLLBACK, or any data definition language (DDL) command after that:
HR then opens a second session.
Which two operations wait when executed in HR’s second session?
A. LOCK TABLE employees IN EXCLUSIVE MODE;
B. INSERT INTO employees(empno,ename) VALUES (1289, ‘Dick’);
C. SELECT job FROM employees WHERE job=’CLERK’ FOR UPDATE OF empno;
D. SELECT empno,ename FROM employees WHERE job=’CLERK’;
E. INSERT INTO employees(empno,ename,job) VALUES (2001,’Harry’,’CLERK);
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