The DELETE CONTEXT command deletes a context.

    Because a context is a nonversioned element, CDO does not accept
    a branch designation or a version number in the context name.

    If a context is a child, you must delete its immediate parent
    before you delete the context. If the context's immediate parent
    is a child of another element, you must trace the relationships
    back until you reach the element that has no parents.

    If you delete your current context, CDO sets a null value for the
    current context before deleting the context.

    An error occurs if you attempt to delete a context that has
    opened files or reserved elements. The SHOW CONTEXT or SHOW
    RESERVATIONS command indicates whether this condition exists.