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

declare @date datetime; set @date = null
--declare @date datetime; set @date = '2015-01-01'

select coalesce( convert( varchar(10), @date, 103 ), '')

Answer 2

This also works:

REPLACE(ISNULL(CONVERT(DATE, @date), ''), '1900-01-01', '') AS 'Your Date Field'

Answer 3

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

In this query, I worked out the result came from current date of the day.

Answer 4

Try to use the function DECODE

Ex: Decode(MYDATE, NULL, ' ', MYDATE)

If date is NULL then display ' ' (BLANK) else display the date.

Answer 5

select case when IsNull(CONVERT(DATE, StartDate),'')='' then 'NA' else Convert(varchar(10),StartDate,121) end from table1

Answer 6

CASE and CAST should work:

CASE WHEN mycol IS NULL THEN '' ELSE CONVERT(varchar(50), mycol, 121) END