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SQL Server Function to Return Numeric Value for DateTime

Technorati Tags: SQL Server, SQL, Function, Intellectually Constipated

This function will return a numeric value for a given date. This is using the 1900 date system, the same as used by Excel. See https://office.microsoft.com/en-us/excel/HP100791811033.aspx for more examples.

 

    1:  
    2: IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[util].[uf_GetNumericDate]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
    3: DROP FUNCTION [util].[uf_GetNumericDate]
    4: GO
    5:  
    6: CREATE FUNCTION [util].[uf_GetNumericDate](
    7:      @date            DATETIME = null)
    8: RETURNS NUMERIC(18,10)
    9: WITH EXECUTE AS CALLER
   10: AS
   11: /**********************************************************************************************************
   12: * UDF Name:        
   13: *        [util].[uf_GetNumericDate]
   14: * Parameters:  
   15: *         @date            datetime
   16: *        ,@seperator        varchar(1) = null)
   17: *
   18: * Purpose: This function returns a @date as numeric format. This is 
   19: *    useful when you need a key value instead of a datetime.
   20: *
   21: * Example:
   22:     select util.uf_GetNumericDate(getdate())
   23: *              
   24: * Revision Date/Time:
   25: *    July 31, 2007
   26: *
   27: **********************************************************************************************************/
   28: BEGIN
   29:     DECLARE @result NUMERIC(18,10)
   30:  
   31:     --CHECK FOR NULL DATE
   32:     IF (@date is null)
   33:         SET @result = CAST(GETDATE() AS NUMERIC(18,10))
   34:     ELSE BEGIN
   35:         SET @result = CAST(@date AS NUMERIC(18,10))
   36:     END --if
   37:  
   38:     --Return result
   39:     RETURN @result
   40: END
   41: GO
   42:  
   43: select util.uf_GetNumericDate(getdate())

Comments

  • Anonymous
    July 31, 2007
    Technorati Tags: SQL Server , SQL , Function , Intellectually Constipated This function will return a

  • Anonymous
    September 20, 2011
    I want to extract yyyymm format from datetime and store it as numeric. Please suggest..