Hi,I have the following SQL select query and one one server it works fine but on another i get an error. I am sure the answer is to add this "COLLATE Latin1_General_CI_AS NOT NULL" to part of the query but i am not sure where and why. Could somone point this out and give me an idea why. Many thanks.Error:Msg 468, Level 16, State 9, Line 1Cannot resolve the collation conflict between "Latin1_General_CI_AS" and "SQL_Latin1_General_CP1_CI_AS" in the equal to operation.select u.contactid, u.wce_alias, u.wce_uid, u.wce_displayname, u.wce_locked, c.emailaddress from wces_users as u join DBOSS_SITE..wce_contact as c on u.contactid = c.uniqueid where ((u.wce_locked is null or u.wce_locked = '' and not u.contactid is null) and (not c.emailaddress is null or c.emailaddress =''))