id, user_id, remark_user_id, remark update ums_book_remark remark= #{remark,jdbcType=VARCHAR}, where id = #{id,jdbcType=BIGINT} select from ums_book_remark where user_id = #{userid,jdbcType=BIGINT} select from ums_book_remark where user_id = #{userId,jdbcType=BIGINT} and remark_user_id = #{remarkUserId,jdbcType=BIGINT} limit 1