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  • DATEDIFF (Transact-SQL)
  • DATEPART (Transact-SQL)

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  1. MS-SQL
  2. Quick tutorial

Dates (Transact-SQL)

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Last updated 4 years ago

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DATEDIFF (Transact-SQL)

SELECT *, 
DATEDIFF(MONTH, [first_retail_availability], [discontinued]) AS diff_month
from [dbo].[console_dates] ORDER BY diff_month desc

This function returns the count (as a signed integer value) of the specified datepart boundaries crossed between the specified startdate and enddate.

See for a function that handles larger differences between the startdate and enddate values. See for an overview of all Transact-SQL date and time data types and functions.

DATEDIFF ( datepart , startdate , enddate )

DATEPART (Transact-SQL)

This function returns an integer representing the specified datepart of the specified date.

select [platform_name], [first_retail_availability]
from [dbo].[console_dates] 
where DATEPART(MONTH, [first_retail_availability]) -11 = 0
select 
	[platform_name], [first_retail_availability]
from 
	[dbo].[console_dates] 
where 
	DATEPART(MONTH, [first_retail_availability]) -12 = 0 OR 
	DATEPART(MONTH, [first_retail_availability]) -11 = 0
DATEDIFF_BIG (Transact-SQL)
Date and Time Data Types and Functions (Transact-SQL)