DATEFROMPARTS function in SQL Server
The DATEFROMPARTS() function returns a date from the specified parts (year, month, and day values).
DATEFROMPARTS function
- Introduced in SQL Server 2012
- Returns a date value for the specified year, month, and day
- The data type of all the 3 parameters (year, month, and day) is integer
- If invalid argument values are specified, the function returns an error
- If any of the arguments are NULL, the function returns null
Syntax : DATEFROMPARTS ( year, month, day )
Example : All the function arguments have valid values, so DATEFROMPARTS returns the expected date
SELECT DATEFROMPARTS ( 2015, 10, 25) AS [Date]
Output :
Example : Invalid value specified for month parameter, so the function returns an error
SELECT DATEFROMPARTS ( 2015, 15, 25) AS [Date]
Output : Cannot construct data type date, some of the arguments have values which are not valid.
Example : NULL specified for month parameter, so the function returns NULL.
SELECT DATEFROMPARTS ( 2015, NULL, 25) AS [Date]
Output :
Other new date and time functions introduced in SQL Server 2012
- EOMONTH (Discussed in Part 125 of SQL Server tutorial)
- DATETIMEFROMPARTS : Returns DateTime
- Syntax : DATETIMEFROMPARTS ( year, month, day, hour, minute, seconds, milliseconds )
- SMALLDATETIMEFROMPARTS : Returns SmallDateTime
- Syntax : SMALLDATETIMEFROMPARTS ( year, month, day, hour, minute )
- We will discuss the following functions in a later video
- TIMEFROMPARTS
- DATETIME2FROMPARTS
- DATETIMEOFFSETFROMPARTS
In our next video we will discuss the difference between DateTime and SmallDateTime.
For More : https://www.youtube.com/channel/UC4DdVKXrecFoGY_R7D_RYNQ/playlists
