FRM-47313

Question

Hi all,
I work in Forms 6.0.
I have constructed an tree item and I used a query to populate it.
The format of query is:
select 1,level,ename,null,to_char(empno)
from emp
connect by prior empno=mgr
start with MGR IS NULL
I used the apropriate PRE-BLOCK trigger:
declare
     htree item;
begin
     --Find the tree itself.
     htree:=find_item('tree_block.tree_item');
     --Populate the tree with data.
     ftree.populate_tree(htree);
end;
And all works fine.
But, I gave the form module to a friend and he sais
that receives the FRM-47313 error message.
What could be the cause?
Thanks in advance,
Eugen

Answer 1

Eugen,
'FRM-47313: Invalid query for the hierarchical tree' was not documented in the Form builder Help Topics.
This is a new error message since D2K 6.0 hierarchical tree (htree)object.
The format of the query must have to have the following format:
4 column format:
Initial State NUMBER values 1, -1, 0
node tree depth NUMBER values starting at 1 and increasing by 1
for children
node label VARCHAR2 max 256 ( truncated without error )
node icon name VARCHAR2 max 256 ( truncated without error )
An example query:
select initial_state, node_tree_depth, node_label, node_icon_name
from my_tree_data_table
If the tree works for you, then still there can be a problem with the database (or table) that your friend uses.
Fran