Brad Tilley wrote:
I should better describe the tables:
computers has 'comp_id' as its primary, unique key.
users has 'user_id' as its primary, unique key.
comp-user-link has two (and only two fields) that are *never* null:
Except within the context of a left join.
Every user in a left join matches up with at least one record in comp-user-link.
If the record is not real, it consists of all NULLs
'comp_id' (which must be unique), and 'user_id'
-- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
