26. The apparatus set forth in claim 25 wherein: the transformation function returns more than one value in the different constraint set that replaces the value in the constrained object; and the apparatus that alters one or more values selects one of more than one values returned by the transformation function to replace the value in the constrained object.
26. The apparatus set forth in claim 25 wherein: the transformation function returns more than one value in the different constraint set that replaces the value in the constrained object; and the apparatus that alters one or more values selects one of more than one values returned by the transformation function to replace the value in the constrained object. 27. The apparatus set forth in claim 26 wherein: the apparatus that alters one or more values selects the one value on the basis of input from a user of the relational database management system.