1. Apparatus for redefining objects belonging to a versioned relational database system, the objects including a view from which versions are generated, the objects having definitions in the versioned relational database system, and the apparatus comprising: a skeleton table maker that receives the definition of the view and makes therefrom a skeleton table that has a form that is substantially the same as the form of the view and a definition for the skeleton table; an SQL parser that applies a DDL statement to the skeleton table to produce a redefined definition therefor; and a transformer that responds to the redefined definition for the skeleton table and the definitions of the objects belonging to the versioned relational database system to redefine the definitions as required to bring the objects belonging to the versioned relational database system into conformity with the skeleton table as redefined by the DDL statement.