Hierarchical tree problem

Question

Hi,
I have a hierarchical tree in one my forms that one branch of it has about 2000 nodes the hierarchical tree does not display all the values.
I've tested with about 1500 and it show correctly.
Any limitation? any workaround?
regards

Answer 1

Hi,
Something like this:
SCOTT@soti_9> CREATE TABLE Org(
  2    Org_Id INTEGER,
  3    Org_Name VARCHAR2(100),
  4    Parent_Org_Id INTEGER
  5  );
Table created.
SCOTT@soti_9> INSERT INTO Org(Org_Id, Org_Name, Parent_Org_Id) VALUES(1, 'Org_1', NULL);
1 row created.
SCOTT@soti_9> INSERT INTO Org(Org_Id, Org_Name, Parent_Org_Id) VALUES(2, 'Org_2', 1);
1 row created.
SCOTT@soti_9> INSERT INTO Org(Org_Id, Org_Name, Parent_Org_Id) VALUES(3, 'Org_3', 2);
1 row created.
SCOTT@soti_9> INSERT INTO Org(Org_Id, Org_Name, Parent_Org_Id) VALUES(4, 'Org_N', 2);
1 row created.
SCOTT@soti_9> COMMIT;
Commit complete.
SCOTT@soti_9> CREATE TABLE Members(
  2    User_Id INTEGER,
  3    Org_Id INTEGER
  4  );
Table created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(1, 3);
1 row created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(2, 3);
1 row created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(3, 3);
1 row created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(4, 4);
1 row created.
SCOTT@soti_9> INSERT INTO Members(User_Id, Org_Id) VALUES(5, 4);
1 row created.
SCOTT@soti_9> COMMIT;
Commit complete.
SCOTT@soti_9> WITH Branches AS (
  2    SELECT Org_Id
  3    FROM Org
  4    START WITH Org_Name = 'Org_2'
  5    CONNECT BY PRIOR Org_Id = Parent_Org_Id
  6  )
  7  SELECT COUNT(*)
  8  FROM Branches B
  9    JOIN Members M USING(Org_Id)
10  ;
  COUNT(*)
         5
SCOTT@soti_9> WITH Branches AS (
  2    SELECT Org_Id
  3    FROM Org
  4    START WITH Org_Name = 'Org_1'
  5    CONNECT BY PRIOR Org_Id = Parent_Org_Id
  6  )
  7  SELECT COUNT(*)
  8  FROM Branches B
  9    JOIN Members M USING(Org_Id)
10  ;
  COUNT(*)
         5Regards,
Dima