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Select + - 2 minutes using time format ()

I'm trying to pick a non-exact arrival time from my arrival time table, but - + 2 minutes with this query:

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 ?

How can I choose + - 2 minutes?

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2 answers


If the field arrival time is a field TIME

, this should work:

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 ?


Or you can use the BETWEEN operator :

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 ?
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You can just use BETWEEN....AND

and DATE_ADD

:



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 ?
+1


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