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cmaxin asked on

MS SQL Numeric to datetime format conversion

I have a numeric date imported from AS400 in this format: 104125.  It's actually the 125th day of 2004.

How do I convert this in MS SQL to a datetime format?

Thanks
Microsoft SQL Server

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Anthony Perkins

8/22/2022 - Mon
vc01778

Assuming that last three digits reperesent a day and the first three 1900 + years:

select dateadd(day,  your_column % 1000 - 1, dateadd(year, your_column/1000, '1900/1/1') ) from your_table

E.g.:

select dateadd(day, 104125 % 1000 - 1, dateadd(year, 104125/1000, '1900/1/1') )

gives:

5/4/2004 12:00:00 AM


VC
Anthony Perkins

Declare @AS400Date integer
Set @AS400Date = 104125
Select DateAdd(Day, @AS400Date % 1000, DateAdd(Year, @AS400Date / 1000, '1900-01-01'))
Anthony Perkins

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ASKER
cmaxin

Thanks for the response!.  That seems to work if your data type is integer, but mine is numeric.
vc01778

create table t1(x numeric(6,0))

insert into t1 values(104125)

select dateadd(day,  x % 1000 - 1, dateadd(year, x/1000, '1900/1/1') ) from t1

5/4/2004 12:00:00 AM


????

VC
ASKER CERTIFIED SOLUTION
vc01778

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ASKER
cmaxin

OK.  I changed my data type from numeric to integer and this worked for me:

Declare @AS400Date integer
Set @AS400Date = 104125
Select DateAdd(Day, @AS400Date % 1000, DateAdd(Year, @AS400Date / 1000, '1900-01-01'))

Thank you very much!!
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Anthony Perkins

Please do not award me any points, I merely duplicate (inadvertently) vc01778's solution.