I'm a newbie, so please be gentle
I have a table that has a timestamp column that I can reference, e.g.,
SELECT *
FROM mytable
WHERE RECORDTIME < {TS '2006-05-01 00:00:00.000' }
This type of selection works.
What I want to do now is select the rows where the timestamp is less than 30 days prior to the current date instead of hardcoding a timestamp every time. I'm trying to select anything older than 30 days.
SELECT *
FROM myfile
WHERE RECORDTIME < [ current date's timestamp] - 30 days
I don't even know where to start so any help is greatly appreciated.
Thanks in advance,
Robert
I think I have it. This seems to work.
SELECT *
FROM myfile
WHERE RECORDTIME < ( cast( getdate() as datetime) - day(30) )
Please advise if you see anything that would be an issue.
Thanks!
|||I don't think that it works exactly as the spec 'today less 30 days'.
Consider these two different results:
select getdate() - day(30), getdate()
select dateadd(day, -30, getdate()), getdate()
-- -
2006-04-30 15:44:45.890 2006-05-31 15:44:45.890
(1 row(s) affected)
-- --
2006-05-01 15:44:45.890 2006-05-31 15:44:45.890
(1 row(s) affected)
/Kenneth
