id , title, content, create_time, send_user_id, send_user_name, send_real_name, receive_user_count, read_count select from t_message and send_user_name like concat('%',#{sendUserName},'%') select from t_message where id in #{id} UPDATE t_message SET read_count = read_count + 1 WHERE id = #{id} and read_count = (SELECT m.read_count from (SELECT read_count FROM t_message WHERE id = #{id}) m)