I want my MySql Column 'Time' to be update as Column 'End_Time' Minus Column 'Start_Time'
Note: End_Time & Start_Time are in DATETIME format....
Thanks
Try this method,
SELECT SEC_TO_TIME(TIMESTAMPDIFF(second,Start_Time,End_Time)) --include sec
or
SELECT SEC_TO_TIME(TIMESTAMPDIFF(minute,Start_Time,End_Time)*60) --diff in minute
eg
SELECT SEC_TO_TIME(TIMESTAMPDIFF(minute,'2016-05-04 10:00:00','2016-05-04 11:29:00')*60)
Here TIMESTAMPDIFF(minute
will return the diff in minutes and mutiple it *60 to get seconds, and use SEC_TO_TIME
to convert from sec to Time.
Use Datediff function in mysql
you can use TIMESTAMPDIFF
function.
SELECT TIMESTAMPDIFF(minute, '2015-06-01 13:13:55', '2015-06-03 10:15:20')
SELECT TIMESTAMPDIFF(second, '2015-06-01 13:13:55', '2015-06-03 10:15:20')
SELECT TIMESTAMPDIFF(hour, '2015-06-01 13:13:55', '2015-06-03 10:15:20')
update table
set Time = (select
to_timestamp(End_Time,'yyyy-mm-dd hh24:mi:ss') - to_timestamp(Start_Time,'yyyy-mm-dd hh24:mi:ss')
);
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