Re: Referential integrity question

In <200011051615.QAA78279@mail.iol.ie>, on 11/05/00
   at 10:12 AM, "Raymond O'Donnell" <rod@iol.ie> said:

>Hi all,

>Is this normal? - I have discovered the hard way that permissions
>GRANTed to a user on one table influence that user's ability to  update
>another table in a foreign key relationship with it. To be  specific,
>here are the relevant bits of the two tables:

>create table usertypes (
>   typecode      varchar(16) primary key,
>   description   varchar(64),
>);

>grant select on usertypes to webanon;

>create table users (
>   uid   varchar(16)      primary key,
>   pwd   varchar(16),
>   typecode   varchar(16) references usertypes
>                          on update cascade
>);

>grant select,insert,update,delete on users to webanon;

>Now, when user webanon tries to update a field in table "users", the
>update doesn't happen.....however, it DOES happen if I grant update
>permissions to webanon on table "usertypes".

>Any comments welcome! - Many thanks.

If I am looking at this you wouldn't want webanon to be able to update
table "usertypes". Table "usertypes" is a lookup table and as such should
not be modified by any entries in table "users".

How do you have the relationship between the two tables set up?

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