SQL Server remove milliseconds from datetime
select *
from table
where date > '2010-07-20 03:21:52'
which I would expect to not give me any results... EXCEPT I'm getting a record with a datetime of 2010-07-20 03:21:52.577
how can I make the query ignore milliseconds?
You just have to figure out the millisecond part of the date and subtract it out before comparison, like this:
select *
from table
where DATEADD(ms, -DATEPART(ms, date), date) > '2010-07-20 03:21:52'
If you are using SQL Server (starting with 2008), choose one of this:
- CONVERT(DATETIME2(0), YourDateField)
- LEFT(RTRIM(CONVERT(DATETIMEOFFSET, YourDateField)), 19)
- CONVERT(DATETIMEOFFSET(0), YourDateField) -- with the addition of a time zone offset
Try:
SELECT *
FROM table
WHERE datetime >
CONVERT(DATETIME,
CONVERT(VARCHAR(20),
CONVERT(DATETIME, '2010-07-20 03:21:52'), 120))
Or if your date is an actual datetime value:
DECLARE @date DATETIME
SET @date = GETDATE()
SELECT CONVERT(DATETIME, CONVERT(VARCHAR(20), @date, 120))
The conversion to style 120 cuts off the milliseconds...
select * from table
where DATEADD(ms, DATEDIFF(ms, '20000101', date), '20000101') > '2010-07-20 03:21:52'
You'll have to trim milliseconds before comparison, which will be slow over many rows
Do one of these to fix this:
- created a computed column with the expressions above to compare against
- remove milliseconds on insert/update to avoid the read overhead
- If SQL Server 2008, use
datetime2(0)
For this particular query, why make expensive function calls for each row when you could just ask for values starting at the next higher second:
select *
from table
where date >= '2010-07-20 03:21:53'