Thursday 3 March 2016

Extracting Date (Excluding Time) from a DateTime value in SQL Server

 

SQL Server supports many data types where we can store the Date along with the time, such as

  • DateTime
  • SmallDateTime
  • DateTimeOffset
  • DateTime2

But in some cases it’s required only to fetch only the date portion from an aforementioned type of field.

There are few ways which we can achieve this task easily using T-SQL.

The easiest of the method is to CAST the DateTime value directly to a DATE type.

SELECT CAST(GETDATE() AS DATE)                                    --==> 2016-03-03

Also you can achieve this by using the CONVERT function providing different styles as per your requirement.

SELECT CONVERT(VARCHAR(24),GETDATE(),101)                        --==> 03/03/2016
SELECT CONVERT(VARCHAR(24),GETDATE(),102)                        --==> 2016.03.03

Please refer to the following URL (https://msdn.microsoft.com/en-sg/library/ms187928.aspx) for more details on the CONVERT function and supported styles:

But if your requirement is to return a DateTime type but having only the date portion you can use the following syntax:

SELECT CAST(FLOOR(CAST(GETDATE() AS FLOAT)) AS DATETIME)        --==> 2016-03-03 00:00:00.000
SELECT CAST(CONVERT(VARCHAR(8),GETDATE(),112) AS DATETIME)      --==> 2016-03-03 00:00:00.000

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