punching card more than twice in a day

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I need a query ,I am making Human resource management software ....
in the scenario a employee come in office & punch card & go home at the night & punch card but during the time he went for the break for some time after punch card & come again then punch card.

In simplicity he come office two times & go from office two time ,,I need the total workking times

the coloum for punch card is date time
actual_card_in_ time actual_card_out_time

Posted 15-Dec-11 18:46pm

Ali_100

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2 solutions

Solution 1

You can take the minimum time as the punch in time for a particular day.
You can take the maximum time as the punch out time for a particular day.

E.g. Punch in -
select min(logintime) from table where logindate = GetDate()

E.g. Punch out -
select max(logintime) from table where logindate = GetDate()

Posted 15-Dec-11 18:54pm

Abhinav S

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Wendelius · Accepted Answer · 2011-12-15T18:57:00

Solution 2

You could sum the difference between the dates. Something like:

SQL

SELECT SUM(DATEDIFF(hour, actual_card_in_ time, actual_card_out_time))
FROM YourTable
WHERE ...

Posted 15-Dec-11 18:57pm

Wendelius