单项选择题
下列过程的调用错误的是()。create or replace procedure proc add(param_deptno number,param_dname varchar2:=’WANG’)ASBEGINinsert into dept values(param_deptno,param_dname)END
A.ca11proc_add (10)
B.call proc_add (param_deptno=>10,’WANG’)
C.call proc_add(10,’WANG’)
D.Exec proc_add (param_deptno=>10,param_dname=>’WANG’)