!- Converted with LaTeX2HTML 0.6.4 (Tues Aug 30 1994) by Nikos Drakos (firstname.lastname@example.org), CBLU, University of Leeds ->
Next: Updates Through Views
A view is defined using the create view command:
where <query expression> is any legal query expression.
The view created is given the name .
To create a view all-customer of all branches and their customers:
Having defined a view, we can now use it to refer to the virtual relation
View names can appear anywhere a relation name can.
We can now find all customers of the SFU branch by writing
Page created and maintained by Osmar R. Zaï ane
Wed Sep 20 15:45:57 PDT 1995