select username from lh_users where username = and password = delete from lh_users_groups where useridfk = select id, name from lh_groups select lh_groups.name from lh_groups, lh_users_groups where lh_users_groups.useridfk = and lh_users_groups.groupidfk = lh_groups.id select id from lh_users where username = select id, username, emailaddress, password, name from lh_users insert into lh_users_groups(useridfk,groupidfk) values(,)