1

我有一张这样的桌子

CREATE TABLE `TPS_INFO` (
    `TPS` INT(10) NULL DEFAULT NULL,
    `AT_TIME` TIMESTAMP NOT NULL 
              DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
)

我想选择 TPS 值和时间戳，这样时间戳的选择相差 1 分钟。

我怎么能在mysql中做到这一点..

4

3 回答 3

0 
select *,TIMESTAMPDIFF(SECOND,t1.AT_TIME,t2.AT_TIME) AS diff from tps_info t1 , tps_info  t2 having diff='60'
于 2012-12-27T14:08:14.600 回答
-1

终于我做到了，就这样——

Select m.tps,m.at_time from TPS_info m, tps_info c 
where (date_add(m.at_time, INTERVAL 1 MINUTE) = c.at_time) OR
  (date_add(m.at_time, INTERVAL -1 MINUTE) = c.at_time)
group by m.at_time
order by m.at_time

最初我尝试喜欢，

Select m.tps,m.at_time from TPS_info m, tps_info c 
where date_add(m.at_time, INTERVAL 1 MINUTE) = c.at_time

看演示

注意：它工作正常，除了最后一条记录没有被检索。

结果相同

Select m.tps,m.at_time from TPS_info m, tps_info c 
where 60 = TIME_TO_SEC( TIMEDIFF( m.at_time, c.at_time ) )
于 2012-12-27T13:44:15.813 回答
-1 
select * from TPS_INFO where TIMESTAMPDIFF(SECOND, AT_TIME,NOW()) < 60
于 2012-12-27T13:50:21.190 回答