DATETIME SELECT SELECT INTO DATE PAD STRING DYNAMIC SQL CURSOR MONEY FORMAT PERCENT STORED PROCEDURE SQL SERVER AGENT JOB OPTIMIZATION WHILE LOOP OVER PARTITION BY UPDATE
 
 
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How to calculate the present and future value of money?

Execute the following SQL Server T-SQL scripts in Management Studio Query Editor to create and test user-defined functions to calculate present value and future value.

-- SQL present value calculation - SQL future value calculation

-- SQL user-defined function - UDF - SQL scalar function

USE AdventureWorks;

GO

CREATE FUNCTION fnPresentValue

               (@FutureValue         MONEY,

                @InterestRatePercent DECIMAL,

                @Years               INT)

RETURNS MONEY

AS

  BEGIN

    DECLARE  @Value MONEY

    

    SELECT @Value = @FutureValue * (1 / Power((1 + @InterestRatePercent / 100.0),

                                              @Years))

    

    RETURN @Value

  END

 

GO

-- Test UDF

-- What is the present value of 500,000 10 years from now at 5% interest

SELECT dbo.fnPresentValue (500000, 5, 10)

GO

-- 306956.5564

-- 306956 will grow to 500,000 in ten years provided no tax payments

 

CREATE FUNCTION fnFutureValue

               (@PresentValue        MONEY,

                @InterestRatePercent DECIMAL,

                @Years               INT)

RETURNS MONEY

AS

  BEGIN

    DECLARE  @Value MONEY

    

    SELECT @Value = @PresentValue * Power((1 + @InterestRatePercent / 100.0),

                                    @Years)

    

    RETURN @Value

  END

 

GO

 

-- Test UDF

-- What is the future value of one million 10 years from now at 5% interest rate

SELECT dbo.fnFutureValue (1000000, 5, 10)

-- 1628895.00

-- 1 million will grow with a factor of 1.628, not 1.5, due to compund interest

-- No tax payments are assumed

Exam Prep 70-461
SQL 2016 DESIGN & PROGRAMMING
 
 
 
DATETIME SELECT SELECT INTO DATE PAD STRING DYNAMIC SQL CURSOR MONEY FORMAT PERCENT STORED PROCEDURE SQL SERVER AGENT JOB OPTIMIZATION WHILE LOOP OVER PARTITION BY UPDATE