---------- Drop Referential ----------

A referential constraint can be removed using the DROP REFERENTIAL command.

Syntax:
    drop | referential | [| constraint |] [constraint name]
         | refer       |  | check      |

         [on] CONSTRAINED_LIST  | insert |  CONSTRAINING_LIST;
                                | delete |

where  CONSTRAINED_LIST  is   the   list   of   constrained   attributes   and
CONSTRAINING_LIST  is  the  list  of constraining attributes and both have the
following syntax:

                | TABLE (ATTR_NAME {,ATTR_NAME})   |
                | TABLE set ATTR_NAME {,ATTR_NAME} |

If a constraint name is specified in the drop statement and this name  is  not
unique, Empress will prompt you with the constraint names and their
attributes before dropping a constraint.

For further information, enter:

                help create_referential;
                help range_check;
