Question

我试图从到达时间表中选择不到确切的到达时间，但是 - 使用此查询+ 2分钟：

SELECT route from arrivaltimes INNER JOIN stops
 ON arrivaltimes.stop_id=stops.stop_id 
WHERE weekday =  ?
and time_format(arrivaltime,'%H:%i')= time_format(curtime() ,'%H:%i')
and name LIKE ?

如何选择+ - 2分钟？

Answer 1

如果字段到达时间是TIME字段，则应该有效：

SELECT route
FROM arrivaltimes
INNER JOIN stops ON (arrivaltimes.stop_id = stops.stop_id)
WHERE
    weekday =  ?
    AND arrivaltime >= curtime() - INTERVAL 2 MINUTE
    AND arrivaltime <= curtime() + INTERVAL 2 MINUTE
    AND name LIKE ?

或者您可以使用BETWEEN运算符：

SELECT route
FROM arrivaltimes
INNER JOIN stops ON (arrivaltimes.stop_id = stops.stop_id) 
WHERE
    weekday =  ?
    AND arrivaltime BETWEEN curtime() - INTERVAL 2 MINUTE AND curtime() + INTERVAL 2 MINUTE
    AND name LIKE ?

Answer 2

您只需使用BETWEEN....AND和DATE_ADD：

即可

SELECT route 
from arrivaltimes 
INNER JOIN stops ON arrivaltimes.stop_id=stops.stop_id 
WHERE weekday =  ?
and time_format(arrivaltime,'%H:%i') BETWEEN 
    time_format(DATE_ADD(curtime,INTERVAL -2 MINUTE) ,'%H:%i') AND 
    time_format(DATE_ADD(curtime,INTERVAL 2 MINUTE) ,'%H:%i')
and name LIKE ?

使用时间格式选择+ - 2分钟（）

2 个答案: