following items:
::#Data definition.
::#View definition.
::#Data manipulation (interactive and by program).
::#Integrity constraints.
::#Authorization.
::#Transaction boundaries (begin, commit and rollback).

Rule 6: The view updating rule:
:All views that are theoretically updatable are also updatable by the system.

Rule 7: Relational operations rule / Possible for high-level insert, update, and delete:
:The capability of handling a base

1.Previous
3.Next