Question

I just watched such an example which shows how to get all cols by date here it is…

DECLARE @MyGetDate DATETIME

SELECT @MyGetDate = '2 Mar 2003 21:40'

SELECT  * 
FROM @Table
WHERE convert(varchar, @MyGetDate, 14) BETWEEN convert(varchar, startDate, 14) AND convert(varchar, endDate, 14)

… but the thing is I was trying to modify it as to get values within past 50 minutes. Here it is

SELECT  value, my_date_col
FROM myTable
WHERE convert(varchar, my_date_col, 14) BETWEEN convert(varchar, dateadd(minute, -50, getdate()), 14) AND convert(varchar, getdate(), 14)

But it doesn’t work 🙁 So my question is how to use col my_date_col in such kind of statement?

Any useful comment is appreciated

Answer 1

I assume your my_date_col is DateTime column, then you don’t need the casting. Casting is needed because the sample uses string representation of dates.

DECLARE @date DATETIME
SET @date = GETDATE()

SELECT value, my_date_col 
FROM myTable WHERE my_date_col BETWEEN dateadd(minute, -50, @date) AND @date