SQL - Stumped on a SELECT - please help!

Question

I\'m trying to achieve the following in SQL Server 2005:

SELECT (IF EITHER EXISTS) usr.username, pro.email
FROM table1 AS usr, table2 AS pro
WHERE usr.username = \'ex         


        

Answer 1

Certainly it's possible. If you have two tables, Usernames with all the taken user names, and Emails with all the taken emails, this query would return all the rows that either have the same username or the same email.

SELECT * FROM Usernames, Emails WHERE Usernames.Name = 'username' OR Emails.Email = 'email'