将小时转换为天：SQL Server中的小时格式

Question

Create Table 
(
    id int identity(1,1),
    WorkHours int
)

This is my table which stores working hours as integer. My requirement is to display work hours in DD:HH format. How is it possible?

Answer 1

To get it DD:HH format, you'll need to do some math as well as some 00 padding (or you get D:H) format:

select RIGHT('00' + CONVERT(VARCHAR, WorkHours / 24), 2) + ':' + RIGHT('00' + CONVERT(VARCHAR, WorkHours% 24), 2)
from MyTable

Answer 2

with Calcs as
(
select id, floor(WorkHours/24) as DDField, (WorkHours/24)-floor(WorkHours/24) as HHField
from MyTable
)
select id, DDField + ':' + HHField
from Calcs

Answer 3

• Integer division in SQL-Server is int1 / int2 .
• Modulo in SQL-Server is int1 % int2 .
• The function for formatting numbers in SQL-Server is FORMAT .
• The string concatenation operator in SQL-Server is the non-standard + .

The query:

select format(workhours / 24, '00') + ':' + format(workhours % 24, '00')
from mytable;