datetime to totalminute in sql

Question

How can I get the total minute for sql datetime?

Let\'s say:

select getdate() from table

In this way, I will get everything, but I

Answer 1

This query will return the number of minutes past midnight.

declare @now datetime = getdate()
declare @midnight datetime = CAST( FLOOR( CAST( @now AS FLOAT ) ) AS DATETIME )
select datediff(mi, @midnight,@now)

The code

CAST( FLOOR( CAST( "yourDateTimeHere" AS FLOAT ) ) AS DATETIME )

converts any datetime to midnight. Use the datediff with the "mi" function to get the number of minutes past midnight.

Use books online for more date and time math

Answer 2

(DATEPART(HOUR,GETDATE()) * 60) + DATEPART(MINUTE,GETDATE())

Answer 3

Here's a sample:

DECLARE @dt datetime 
SET @dt = '01-01-2001 07:10:20'
SELECT DATEDIFF(MINUTE, DATEADD(DAY, DATEDIFF(DAY, 0, @dt), 0), @dt)