object problem

I define a object type like the following:

create type address_objtyp as object (

    addr1       varchar2(20),
    addr2       varchar2(20),

and then define a table somewhat like this:

create table customer(

    cust_name varchar2(30),
....
....

    address address_objtyp,
....
....

)

What is the command syntax try to set the the columns address.addr1 and address.addr2 not null? Received on Thu Jun 22 2000 - 00:00:00 CDT