'invalid column' in nested iterator

Question

hello,
I am facing problm 'nvalid coumn' in a example of nested
iterator given in the online documentation.
The part of the code is as below:
#sql public iterator DNameIter (String dname);
#sql pubic iterator NameDeptIter2 (String ename, DNameIter
depts);
import DNameIter;
import NameDeptIter2;
Executable code:
NameDeptIter2 iter;
// the query below is causing the error
#sql iter = { SELECT ename, cursor
(SELECT dname FROM dept WHERE deptno = emp.deptno)
AS depts FROM emp };
while (iter.next())
System.out.println(iter.ename());
DNameIter deptsIter = iter.depts();
while (deptsIter.next())
System.out.println(deptsIter.dname());
deptsIter.close();
iter.close();
please reply
thanks
vidya
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Answer 1

Hi,
U r refering to emp table which is not in that scope.
try with the following statement it works ...
#sql iter = { SELECT a.ename,
CURSOR(SELECT dname FROM dept
WHERE deptno = a.deptno)
AS depts FROM emp a };
Bye
Mohan E
vidya (guest) wrote:
: hello,
: I am facing problm 'nvalid coumn' in a example of nested
: iterator given in the online documentation.
: The part of the code is as below:
: #sql public iterator DNameIter (String dname);
: #sql pubic iterator NameDeptIter2 (String ename, DNameIter
: depts);
: import DNameIter;
: import NameDeptIter2;
: Executable code:
: NameDeptIter2 iter;
: // the query below is causing the error
: #sql iter = { SELECT ename, cursor
: (SELECT dname FROM dept WHERE deptno = emp.deptno)
: AS depts FROM emp };
: while (iter.next())
: System.out.println(iter.ename());
: DNameIter deptsIter = iter.depts();
: while (deptsIter.next())
: System.out.println(deptsIter.dname());
: deptsIter.close();
: iter.close();
: please reply
: thanks
: vidya
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