Question

I have a table called users, which has columns username, password, and userlevel. Userlevel is a foreign key that points to another table called userlevels, which has two columns: level and permission.

How do I show the permission side-by side with the user table?

I’ve tried doing:

select username, u.userlevel, l.permission from users u, userlevels l 
where l.permission in 
(select permission from userlevels x where x.userlevel = l.level)  

But this appears to be giving me a bunch of duplicates. Any help would be appreciated. Thanks.

Answer 1

You want to use what’s called an inner join.

CREATE VIEW MyView as select * from users inner join userlevels where users.userlevel = userslevel.permissions;