Command line specified default constraint evaluation mode is off

  Explanation:  Your command line specified (either explicitly or
  by default) that the constraint mode when you start a
  transaction is OFF; that is, that by default, constraints will
  not be evaluated until a COMMIT is executed.  The ANSI and ISO
  SQL standards require that the constraint mode when you start a
  transaction be ON; that is, that constraints be evaulated at the
  end of every SQL statement.

  User Action:  If it is important to have standard behavior in
  your program, and you have constraints in your database, you
  should specify the /CONSTRAINT_MODE=ON in the module language
  command line or /SQLOPTIONS=(CONSTRAINT_MODE=ON) in the
  precompiler command line.