select ${column} from T_USER where user_name = #{userName} and user_password = #{userPassword} select ${column} from T_USER where user_name = #{userName} and user_password = #{userPassword} select ${column} from T_USER where user_name = #{userName} select ${column},r.role_name from T_USER u, T_ROLE r where u.role_id = r.id and (u.user_name like CONCAT('%',#{key},'%') or u.real_name like CONCAT('%',#{key},'%') ) and u.status=#{status} select ${column} from T_USER where roleId in (${roleIds}) select count(1) from T_USER where roleId = #{roleId} select ${column} from T_USER where id = #{id}