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New Date and Time Functions in SQL Server 2012

MSSQLTips author Ashish Kumar Mehta By:   |   Read Comments (4)   |   Related Tips: More > Dates
Problem

SQL Server 2012, has new date and time functions such as DATEFROMPARTS, TIMEFROMPARTS, DATETIMEFROMPARTS, DATETIME2FROMPARTS, SMALLDATETIMEFROMPARTS, DATETIMEOFFSETFROMPARTS, EOMONTH that can be used to Get Date and Time Values from their parts. In this tip we take a look at some basic examples of how these can be used.

Solution

In this tip we will discuss how to utilize the below new date and time functions available in SQL Server 2012.

1. DATEFROMPARTS Function
2. TIMEFROMPARTS Function
3. DATETIMEFROMPARTS Function
4. DATETIME2FROMPARTS Function
5. SMALLDATETIMEFROMPARTS Function
6. DATETIMEOFFSETFROMPARTS Function
7. EOMONTH Function

Using DATEFROMPARTS Function

The DATEFROMPARTS function, which is available in SQL Server 2012, returns a date value with the date part set to the specified year, specified month and the specified day, and the time portion set to the default as shown in the below query result.

SYNTAX: - DATEFROMPARTS (YEAR, MONTH, DAY)

/* Using DATEFROMPARTS Function */ DECLARE @YEAR INT = 2012 , @MONTH INT = 01 , @DAY INT = 09
SELECT DATEFROMPARTS (@YEAR, @MONTH, @DAY) AS [Retrieved Data Using DATEFROMPARTS Function] GO
Retrieved Data Using DATEFROMPARTS Function ------------------------------------------- 2012-01-09

Using TIMEFROMPARTS Function

The TIMEFROMPARTS function, which is available in SQL Server 2012, returns a full time value as shown in the below query result.

It is important to note that the fractions argument actually depends on the precision argument.

For example:

1. When fractions have a value of 5 and precision has a value of 1, then the value of fractions represents 5/10 of a second.
2. When fractions have a value of 50 and precision has a value of 2, then the value of fractions represents 50/100 of a second.
3. When fractions have a value of 500 and precision has a value of 3, then the value of fractions represents 500/1000 of a second.

SYNTAX: - TIMEFROMPARTS (HOUR, MINUTE, SECONDS, FRACTIONS, PRECISION)

/* Using TIMEFROMPARTS Function */ DECLARE @HOUR INT = 11 , @MINUTE INT = 59 , @SECONDS INT = 59
SELECT TIMEFROMPARTS (@HOUR, @MINUTE, @SECONDS, 500, 3) AS [Retrieved Data Using TIMEFROMPARTS Function] GO
Retrieved Data Using TIMEFROMPARTS Function ------------------------------------------- 11:59:59.500

Using DATETIMEFROMPARTS Function

The DATETIMEFROMPARTS function, which is available in SQL Server 2012, returns a full datetime value as shown in the below query result.

SYNTAX: - DATETIMEFROMPARTS (YEAR, MONTH, DAY, HOUR, MINUTE, SECONDS, MILLISECONDS)

/* Using DATETIMEFROMPARTS Function */ DECLARE @YEAR INT = 2012 , @MONTH INT = 01 , @DAY INT = 09 , @HOUR INT = 11 , @MINUTE INT = 59 , @SECONDS INT = 59 , @MILLISECONDS INT = 0
SELECT DATETIMEFROMPARTS (@YEAR, @MONTH, @DAY, @HOUR, @MINUTE, @SECONDS, @MILLISECONDS) AS [Retrieved Data Using DATETIMEFROMPARTS Function] GO
Retrieved Data Using DATETIMEFROMPARTS Function ----------------------------------------------- 2012-01-09 11:59:59.000

Using DATETIME2FROMPARTS Function

The DATETIME2FROMPARTS function, which is available in SQL Server 2012, returns a full datetime2 value as shown in the below query result.

SYNTAX: - DATETIME2FROMPARTS (YEAR, MONTH, DAY, HOUR, MINUTE, SECONDS, FRACTIONS, PRECISION)

/* Using DATETIME2FROMPARTS Function */
DECLARE @YEAR INT = 2012 , @MONTH INT = 01 , @DAY INT = 09 , @HOUR INT = 11 , @MINUTE INT = 59 , @SECONDS INT = 59
SELECT DATETIME2FROMPARTS (@YEAR, @MONTH, @DAY, @HOUR, @MINUTE, @SECONDS, 500, 3) AS [Retrieved Data Using DATETIME2FROMPARTS Function] GO
Retrieved Data Using DATETIME2FROMPARTS Function ------------------------------------------------ 2012-01-09 11:59:59.500

Using SMALLDATETIMEFROMPARTS Function

The SMALLDATETIMEFROMPARTS function, which is available in SQL Server 2012, returns a full smalldatetime value as shown in the below query result.

SYNTAX: - SMALLDATETIMEFROMPARTS (YEAR, MONTH, DAY, HOUR, MINUTE)

/* Using SMALLDATETIMEFROMPARTS Function */
DECLARE @YEAR INT = 2012 , @MONTH INT = 01 , @DAY INT = 09 , @HOUR INT = 11 , @MINUTE INT = 59
SELECT SMALLDATETIMEFROMPARTS (@YEAR, @MONTH, @DAY, @HOUR, @MINUTE) AS [Retrieved Data Using SMALLDATETIMEFROMPARTS Function] GO Retrieved Data Using SMALLDATETIMEFROMPARTS Function ---------------------------------------------------- 2012-01-09 11:59:00

Using DATETIMEOFFSETFROMPARTS Function

The DATETIMEOFFSETFROMPARTS function, which is available in SQL Server 2012, returns a full datetimeoffset data type as shown in the below query result. The OFFSET argument is basically used to represent the time zone offset value hour and minutes.

SYNTAX: - DATETIMEOFFSETFROMPARTS (YEAR, MONTH, DAY, HOUR, MINUTE, SECONDS,
       FRACTIONS, HOUR_OFFSET, MINUTE_OFFSET, PRECISION) 

/* Using DATETIMEOFFSETFROMPARTS Function */
DECLARE @YEAR INT = 2012 , @MONTH INT = 01 , @DAY INT = 09 , @HOUR INT = 11 , @MINUTE INT = 59 , @SECONDS INT = 59
SELECT DATETIMEOFFSETFROMPARTS (@YEAR, @MONTH, @DAY, @HOUR, @MINUTE,@SECONDS,500, 5, 30, 3) AS [Retrieved Data Using DATETIMEOFFSETFROMPARTS Function] GO
Retrieved Data Using DATETIMEOFFSETFROMPARTS Function ----------------------------------------------------- 2012-01-09 11:59:59.500 +05:30

Using EOMONTH Function

The EOMONTH function, which is available in SQL Server 2012, calculates the last date of the month based on the date which is passed as an input parameter.

SYNTAX: - EOMONTH (START_DATE, [, MONTH_TO_ADD ])

/* Using EOMONTH Function */ DECLARE @STARTDATE DATETIME = GETDATE()
SELECT EOMONTH (@STARTDATE) AS ThisMonthLastDay SELECT EOMONTH (@STARTDATE, 1) AS NextMonthLastDay SELECT EOMONTH (@STARTDATE, -1) AS LastMonthLastDay GO
ThisMonthLastDay ----------------------- 2011-12-31 00:00:00.000
NextMonthLastDay ----------------------- 2012-01-31 00:00:00.000
LastMonthLastDay ----------------------- 2011-11-30 00:00:00.000
Next Steps


Last Update: 1/9/2012


About the author
MSSQLTips author Ashish Kumar Mehta
Ashish Kumar Mehta has been contributing to the MSSQLTips.com community since 2009 with over 60 tips.

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Comments and Feedback:
Thursday, January 12, 2012 - 11:42:59 AM - DavidP Read The Tip

The code examples are pretty good.  I am looking forward to using these once SQL 2012 gets released.

Does anyone know when it will be released?


Friday, January 13, 2012 - 11:23:48 AM - Ashish Kumar Mehta Read The Tip

Hello DavidP,

Thanks for the appreciation and I am pleased to know that you looking forward to using New Features of SQL Server 2012 once the product is released. Recently, Microsoft has released the SQL Server 2012 Release Candidate (0). This shows that the SQL Server 2012 RTM will be released in the next 1 or 2 quarters.

I would also recommend you to go through other MSSQLTips on
SQL Server 2012 category in your free time.

Cheers
Ashish Kumar Mehta

MSSQLTips - Author


Friday, January 13, 2012 - 3:42:17 PM - Carla Sabotta Read The Tip

For more information about these new Date and Time functions, see these Books Online topics:

DATEFROMPARTS (Transact-SQL)

TIMEFROMPARTS (Transact-SQL)

 

Monday, January 16, 2012 - 4:10:55 PM - Jeremy Kadlec Read The Tip

Ashish,

What are some use cases with these functions from your tip?

Thank you,
Jeremy Kadlec



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