How do you "Instantiate" a Nested Table from within a FUNCTION?

Question

, I managed to compile and create the FUNCTION.
But when I invoked it,
ORA-06531: Reference to uninitialized collection
ORA-06512: at "DEV.SPGETPARENTSTABLE", line ...
I think I need to somehow *"Instantiate"* the Nested Table and I didn't:
CREATE OR REPLACE FUNCTION spGetParentsTable
ObjectId number,
ObjectClassifier varchar2
RETURN types.TmpHiearchyMapTableType
IS
TmpHierarchyMap types.TmpHiearchyMapTableType;
ThisTempId varchar2(32);
CURSOR spGetParents_cursor IS
SELECT
ReferencedId Id,
ParentId,
ChildId,
FROM TMP_HIERARCHYMAP
WHERE TmpUID = ThisTempId;
BEGIN
SELECT sys_guid() INTO ThisTempId FROM dual;
spRecursiveGetParents(ObjectId, ObjectClassifier, ThisTempId);
FOR oMap in spGetParents_cursor LOOP
TmpHierarchyMap.Extend(); **** BUT I haven't "Instantiate" the Nested Table yet ****
TmpHierarchyMap(TmpHierarchyMap.Count) := TmpHierarchyMapObjType( oMap.Id
, oMap.ParentId
, oMap.ChildId
END LOOP;
DELETE FROM TMP_HIERARCHYMAP WHERE TmpUID = ThisTempId;
RETURN TmpHierarchyMap;
END spGetParentsTable;

Answer 1

It's annonyingly trivial to fix. In your declaration section try
    TmpHierarchyMap types.TmpHiearchyMapTableType :=  types.TmpHiearchyMapTableType();
    ...Cheers, APC
blog: http://radiofreetooting.blogspot.com