Relation between non-database data blocks?

Hi all,
I'm using Oracle Forms Builder 10GR2. I have two data blocks and i want to create a relation between them. They aren't database blocks and when i tried to create a relation between them based on a join condition/joining 2 display items/ i received the error :
FRM-15004: Error while parsing join condition.Any ideas?
Thanks in advance,
Bahchevanov.

Andreas Weiden wrote:
As far as i know you cannot create relationships between non-db-blocks (or maybe you can create them, but they will not work).Hi
Oh yes u can for query purposes only e.g. suppose i have dept table and emp table created Master Block as non-db dept_no & Dept_name and a Detail_block with emp tabel and a dept_no as a foreign key ...
1. we either set up a form relation ship between the two blocks - if we want the user to retrieve data only -
2. or we use copy value property in the dept_no item in the detail block to get the copied value from the dept_no of the master to the dept_no of the detail
3.While the user entered or select the dept_no in the Master Block then Press Entered here comes the role of the WHEN-BLOCK-INSTANCE Trigger
GO_BLOCK('DEATIL_BLOCK_NAME');
EXECUTE_QUERY;Here the data will be displayed in the detail block accordingly ...
So the relation here played the role of the Where Statment or the default where to filter the displaing of data in the Detail Block according to the Master Block
Regards,
Amatu Allah.

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