Or : alter table users add first_f_name char(1) not null; create index first_f_name_idx on users (first_f_name); update users set first_f_name = left(first_name,1);
And not the query will use index. select username from users where first_f_name between "A" and "B"; -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=arch...@jab.org
