OCP-1Z0-新051-61题版本-51

QUESTION NO: 51

Examine the structure of the EMPLOYEES table:

Which UPDATE statement is valid?

A.UPDATE employees SET first_name = ‘John’ SET last_name = ‘Smith’ WHERE employee_id = 180;

B.UPDATE employees SET first_name = ‘John’,SET last_name = ‘Smoth’ WHERE employee_id = 180;

C.UPDATE employee SET first_name = ‘John’ AND last_name = ‘Smith’ WHERE employee_id = 180;

D.UPDATE employee SET first_name = ‘John’, last_name = ‘Smith’ WHERE employee_id = 180;

Answer: D

答案继续：

参考：http://docs.oracle.com/cd/E11882_01/server.112/e41084/statements_10008.htm#SQLRF55448

Explanation: