Question

if i try to cast string date to datetime like
select cast('12/01/2010' as datetime) then
it works

but if i try to cast like
select cast('22/01/2010' as datetime) then it is giving error.

again if i try to cast string date to datetime like
select cast('2010/12/01' as datetime) then it works
but if i try to cast like
select cast('2010/25/01' as datetime) then it is giving error. my requirement is whatever way user input date that should be successfully converted to datetime. please tell me best solution

Answer 1

In your case the sql server assumes, that date format id mm/dd/yyyy – US format,

you want to use French format, so use convert

select CONVERT(DATETIME, '12/01/2010', 103)

instead you’ll get an error because there in no such a month number – 22

The best solution when passing datetime as string – to use short(without timezone) ISO format:

yyyyMMdd HH:mm:ss.ffff