I just noticed that if I made a form with a Grid in a Pageframe in that form, and I set the grid property for table relation, such as : - LinkMaster - ChildOrder - RelationalExpr - RecordSource Type : 1-Alias - RecordSource Then everytime I load the form, the relationship is already taken care of by the VFP system. I know this by watching the View Window. But the relationship are ALL look like 1 to 1 according to those lines shown in View Window, even if the tables already have persistent relationship in the DBC wich I know (maybe I think) that it is always 1 to Many for persistent relation. So if I made the table relation programmatically then I got an error saying something like "Target table already have a relation". Now I never set the relation programmatically as long as it works using the set relation of the grid. And if the required relationship will not be shown by a Grid Control then I made a dummy Grid just to set the relationship and make that Dummy Grid NOT Visible. I'm using VFP 3, with Windows 95. I would really appreciate any comments, suggestion, idea or sharing what you thoughts about these, especially when you think I did wrong. TIA Tony Mukli Confused Programmer :-(