问题
I am creating a simple application where i am using MSAccess as database. When i am trying to retrieve the data using below query - i am getting exception undefined function GETDATE()
select *
from tempdata
where dateissue between DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) - 0 , 0)
and DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) + 1, - 1 )
can't we use the sql inbuilt methods inside c# code ?? if so how do i solve this problem
回答1:
Now that you moved past the first problem (there is no GETDATE() function in Access SQL), you have discovered another problem.
The DateAdd Function requires a "String expression that is the interval of time you want to add" as its first argument, Interval. But you're giving it MM instead:
DATEADD(MM, DATEDIFF(MM, 0, DATE()) - 0 , 0)
I don't understand what interval you're trying to add. If you want to add minutes, use ...
DateAdd('n', ...
If you want to add months, use ...
DateAdd('m', ...
If you want to add days, use ...
DateAdd('d', ...
Note DateDiff() also expects an Interval string argument and the allowable values are the same as those for DateAdd().
回答2:
GETDATE() is not a function inside MSAccess. The equivilant would be:
Now() provides date and time
Date() provides the date
Time() provides the time
回答3:
In MS ACCESS equivalent of GETDATE() is DATE()
来源：https://stackoverflow.com/questions/18668795/getdate-throwing-exception