>> 2. Error out only if a backwards fetch is actually attempted on a plan
>> tree that can't handle it (which could only happen if SCROLL wasn't
>> given). This is efficient and flexible, but it exposes implementation
>> details to the user, in that whether an error occurs will depend on
>> which
> I hava 2 problems about view
> 1. i can't insert into view
> I try to insert into view as following
> create table t1 (id int,name varchar(12) check(id<=10));
> create table t2 (id int,name varchar(12) check(id>10));
> create view v1 as select * from t1,t2;
This is not an updateable view in a
