How to calculate short hour in and short hour out in postgresql?











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0
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id    checkin   checkout
------------------------
1 12:27 18:10
2 11:00 19:59


I want this result and out checkin time fix 11:00:00
and checkout time fix 20:00:00.



i am using this query



 select min(checktime)::time as checkin, 
max(checktime)::time as checkout,
(case
when cast(min (a.checktime) as time) > '11:00:00' then
(extract (epoch from min (a.checktime)::time - '11:00:00')/3600 )
else 0
end) as shorthour_in ,
(case
when cast(max (a.checktime) as time) <= '20:00:00'
then (extract (epoch from '20:00:00' - max (a.checktime)::time )/3600 )
else 0
end) as shorthour_out
from attendance_FHLHR


id checkin checkout shorthour_in shorthour_out
---------------------------------------------------------
1 12:27 18:10 1.45 1.83
2 11:00 19:59 0 0.016


can any one guide me is it correct query to get / calculate hours?










share|improve this question
























  • Properly formatted SQL is so much easier to read and understand.
    – jarlh
    Nov 15 at 7:04










  • Please share a sample input and expected output.
    – Mayank Porwal
    Nov 15 at 7:07










  • @MayankPorwal i write expected output. see question completely
    – Amna Kalsoom
    Nov 15 at 7:07






  • 1




    What data type are the columns checkin and checkout? The cast() seems to implicate you are storing a time value in a varchar column.
    – a_horse_with_no_name
    Nov 15 at 7:08










  • And what is the input for this output?
    – Mayank Porwal
    Nov 15 at 7:09















up vote
0
down vote

favorite












id    checkin   checkout
------------------------
1 12:27 18:10
2 11:00 19:59


I want this result and out checkin time fix 11:00:00
and checkout time fix 20:00:00.



i am using this query



 select min(checktime)::time as checkin, 
max(checktime)::time as checkout,
(case
when cast(min (a.checktime) as time) > '11:00:00' then
(extract (epoch from min (a.checktime)::time - '11:00:00')/3600 )
else 0
end) as shorthour_in ,
(case
when cast(max (a.checktime) as time) <= '20:00:00'
then (extract (epoch from '20:00:00' - max (a.checktime)::time )/3600 )
else 0
end) as shorthour_out
from attendance_FHLHR


id checkin checkout shorthour_in shorthour_out
---------------------------------------------------------
1 12:27 18:10 1.45 1.83
2 11:00 19:59 0 0.016


can any one guide me is it correct query to get / calculate hours?










share|improve this question
























  • Properly formatted SQL is so much easier to read and understand.
    – jarlh
    Nov 15 at 7:04










  • Please share a sample input and expected output.
    – Mayank Porwal
    Nov 15 at 7:07










  • @MayankPorwal i write expected output. see question completely
    – Amna Kalsoom
    Nov 15 at 7:07






  • 1




    What data type are the columns checkin and checkout? The cast() seems to implicate you are storing a time value in a varchar column.
    – a_horse_with_no_name
    Nov 15 at 7:08










  • And what is the input for this output?
    – Mayank Porwal
    Nov 15 at 7:09













up vote
0
down vote

favorite









up vote
0
down vote

favorite











id    checkin   checkout
------------------------
1 12:27 18:10
2 11:00 19:59


I want this result and out checkin time fix 11:00:00
and checkout time fix 20:00:00.



i am using this query



 select min(checktime)::time as checkin, 
max(checktime)::time as checkout,
(case
when cast(min (a.checktime) as time) > '11:00:00' then
(extract (epoch from min (a.checktime)::time - '11:00:00')/3600 )
else 0
end) as shorthour_in ,
(case
when cast(max (a.checktime) as time) <= '20:00:00'
then (extract (epoch from '20:00:00' - max (a.checktime)::time )/3600 )
else 0
end) as shorthour_out
from attendance_FHLHR


id checkin checkout shorthour_in shorthour_out
---------------------------------------------------------
1 12:27 18:10 1.45 1.83
2 11:00 19:59 0 0.016


can any one guide me is it correct query to get / calculate hours?










share|improve this question















id    checkin   checkout
------------------------
1 12:27 18:10
2 11:00 19:59


I want this result and out checkin time fix 11:00:00
and checkout time fix 20:00:00.



i am using this query



 select min(checktime)::time as checkin, 
max(checktime)::time as checkout,
(case
when cast(min (a.checktime) as time) > '11:00:00' then
(extract (epoch from min (a.checktime)::time - '11:00:00')/3600 )
else 0
end) as shorthour_in ,
(case
when cast(max (a.checktime) as time) <= '20:00:00'
then (extract (epoch from '20:00:00' - max (a.checktime)::time )/3600 )
else 0
end) as shorthour_out
from attendance_FHLHR


id checkin checkout shorthour_in shorthour_out
---------------------------------------------------------
1 12:27 18:10 1.45 1.83
2 11:00 19:59 0 0.016


can any one guide me is it correct query to get / calculate hours?







sql postgresql






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share|improve this question








edited Nov 15 at 7:08









a_horse_with_no_name

289k46438533




289k46438533










asked Nov 15 at 7:03









Amna Kalsoom

276




276












  • Properly formatted SQL is so much easier to read and understand.
    – jarlh
    Nov 15 at 7:04










  • Please share a sample input and expected output.
    – Mayank Porwal
    Nov 15 at 7:07










  • @MayankPorwal i write expected output. see question completely
    – Amna Kalsoom
    Nov 15 at 7:07






  • 1




    What data type are the columns checkin and checkout? The cast() seems to implicate you are storing a time value in a varchar column.
    – a_horse_with_no_name
    Nov 15 at 7:08










  • And what is the input for this output?
    – Mayank Porwal
    Nov 15 at 7:09


















  • Properly formatted SQL is so much easier to read and understand.
    – jarlh
    Nov 15 at 7:04










  • Please share a sample input and expected output.
    – Mayank Porwal
    Nov 15 at 7:07










  • @MayankPorwal i write expected output. see question completely
    – Amna Kalsoom
    Nov 15 at 7:07






  • 1




    What data type are the columns checkin and checkout? The cast() seems to implicate you are storing a time value in a varchar column.
    – a_horse_with_no_name
    Nov 15 at 7:08










  • And what is the input for this output?
    – Mayank Porwal
    Nov 15 at 7:09
















Properly formatted SQL is so much easier to read and understand.
– jarlh
Nov 15 at 7:04




Properly formatted SQL is so much easier to read and understand.
– jarlh
Nov 15 at 7:04












Please share a sample input and expected output.
– Mayank Porwal
Nov 15 at 7:07




Please share a sample input and expected output.
– Mayank Porwal
Nov 15 at 7:07












@MayankPorwal i write expected output. see question completely
– Amna Kalsoom
Nov 15 at 7:07




@MayankPorwal i write expected output. see question completely
– Amna Kalsoom
Nov 15 at 7:07




1




1




What data type are the columns checkin and checkout? The cast() seems to implicate you are storing a time value in a varchar column.
– a_horse_with_no_name
Nov 15 at 7:08




What data type are the columns checkin and checkout? The cast() seems to implicate you are storing a time value in a varchar column.
– a_horse_with_no_name
Nov 15 at 7:08












And what is the input for this output?
– Mayank Porwal
Nov 15 at 7:09




And what is the input for this output?
– Mayank Porwal
Nov 15 at 7:09












1 Answer
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1
down vote













select min (  checktime )::time as checkin, 
max (checktime)::time as checkout,
(case when cast(min (checktime) as time) >= '11:00:00' then
(extract (epoch from min (checktime)::time - '11:00:00')/3600 ) else 0 end) as shorthour_in ,
(case when cast(max ( checktime) as time) <= '20:00:00' then
(extract (epoch from '20:00:00' - max ( checktime)::time )/3600 ) else 0 end) as shorthour_out
from attendance_FHLHR


check this answer.






share|improve this answer





















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    up vote
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    select min (  checktime )::time as checkin, 
    max (checktime)::time as checkout,
    (case when cast(min (checktime) as time) >= '11:00:00' then
    (extract (epoch from min (checktime)::time - '11:00:00')/3600 ) else 0 end) as shorthour_in ,
    (case when cast(max ( checktime) as time) <= '20:00:00' then
    (extract (epoch from '20:00:00' - max ( checktime)::time )/3600 ) else 0 end) as shorthour_out
    from attendance_FHLHR


    check this answer.






    share|improve this answer

























      up vote
      1
      down vote













      select min (  checktime )::time as checkin, 
      max (checktime)::time as checkout,
      (case when cast(min (checktime) as time) >= '11:00:00' then
      (extract (epoch from min (checktime)::time - '11:00:00')/3600 ) else 0 end) as shorthour_in ,
      (case when cast(max ( checktime) as time) <= '20:00:00' then
      (extract (epoch from '20:00:00' - max ( checktime)::time )/3600 ) else 0 end) as shorthour_out
      from attendance_FHLHR


      check this answer.






      share|improve this answer























        up vote
        1
        down vote










        up vote
        1
        down vote









        select min (  checktime )::time as checkin, 
        max (checktime)::time as checkout,
        (case when cast(min (checktime) as time) >= '11:00:00' then
        (extract (epoch from min (checktime)::time - '11:00:00')/3600 ) else 0 end) as shorthour_in ,
        (case when cast(max ( checktime) as time) <= '20:00:00' then
        (extract (epoch from '20:00:00' - max ( checktime)::time )/3600 ) else 0 end) as shorthour_out
        from attendance_FHLHR


        check this answer.






        share|improve this answer












        select min (  checktime )::time as checkin, 
        max (checktime)::time as checkout,
        (case when cast(min (checktime) as time) >= '11:00:00' then
        (extract (epoch from min (checktime)::time - '11:00:00')/3600 ) else 0 end) as shorthour_in ,
        (case when cast(max ( checktime) as time) <= '20:00:00' then
        (extract (epoch from '20:00:00' - max ( checktime)::time )/3600 ) else 0 end) as shorthour_out
        from attendance_FHLHR


        check this answer.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 15 at 7:09









        Zeshan

        381110




        381110






























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