Change NULL values in Datetime format to empty string

Question

I have a table which contains \'NULL\' values which are of type \'Datetime\'. Now i have to convert those into empty string but when when i use convert function

Answer 1

You could try the following

select case when mydatetime IS NULL THEN '' else convert(varchar(20),@mydatetime,120) end as converted_date from sometable

-- Testing it out could do --

declare @mydatetime datetime
set @mydatetime = GETDATE() -- comment out for null value
--set @mydatetime = GETDATE()

select 
case when @mydatetime IS NULL THEN ''
else convert(varchar(20),@mydatetime,120)
end as converted_date

Hope this helps!