REF Problem

Question

My Problem is insertion in object tables.
Senario is as under:
--Creating type
create type dept_a as object
(deptno number(2),
dname varchar2(14),
loc varchar2(13) );
--Creating object table
create table dept1 of dept_a
(deptno primary key,
dname not null
--Creating type with REF of dept_a
create type emp_a as object
(empno number(4),
ename varchar2(14),
job varchar2(10),
sal number(8,2),
hire_date date,
deptno ref dept_a)
--Creating object table
create table emp1 of emp_a
(empno primary key)
--insertion in dept1
insert into dept1
values
(10,'ACCOUNTING','NEW YORK');
--insertion in emp1
INSERT INTO EMP1 (EMPNO,ENAME,JOB,SAL,HIRE_DATE,DEPTNO)
VALUES
(1,'FAISAL','MANAGER',3000,'10-JAN-2001',(SELECT REF(D) FROM DEPT1 D WHERE DEPTNO=10))
This insertion caused an error.
ORA-00936: missing expression
at lin 3 (select ref(d)....)
Please solve my problem

Answer 1

hai muhammad..
A required part of a clause or expression has been omitted. For example, a SELECT statement may have been entered without a list of
columns or expressions, or with an incomplete expression. This message is also issued in cases where a reserved word is misused, as in
SELECT TABLE.
Action:
Check the statement syntax and enter the missing component.
here we can use like that muhammad..
read that ,it will help u
bye now..
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