When you accept changes on a ProDataSet object handle, the AVM makes the rows in all after-image tables the current version of those rows, and empties the before-image tables. When you accept changes for a Buffer object handle, the AVM makes the rows in the after-image table the current version of those rows, and empties the before-image table. In either case, the AVM sets the BEFORE-ROWID attribute of every row in the after-image tables to the Unknown value (?), and the ROW-STATE of every row in the after-image tables to ROW-UNMODIFIED (0).