Hi, I have created a form. Here, there is a Data Block named test_block. It contains items : Col_1(TEXT ITEM), Col_2(TEXT ITEM), Col_3(LIST_ITEM) In the database, Col_3(datatype NUMBER) holds some NULL values. But in the form I want to display -1 instead of NULL. Using NVL is a logical solution, but where to use it? And how? Please HELP!!! PS - I dont want to create any non-database field. Thanks.