你可能感興趣的試題

A.create user jack@'%' identified by'123456';
B.drop user jack@'localhost';
C.add user jack@'%' identified by'123456';
D.alter user jack@'localhost' identified by'123456';

A.drop user jerry@’localhost’;
B.create user jerry@’%’;
C.delete userjerry@’localhost’;
D.drop user jerry@’%’;