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 apply scalar-valued function for restaurant specials?

Execute the following SQL Server T-SQL script in SSMS Query Editor to create a function for the automatic generation of daily specials:

USE AdventureWorks2008;

GO

-- T-SQL create user-defined scalar-valued function - UDF

CREATE FUNCTION fnRoadsideDinerDailySpecial( )

RETURNS NVARCHAR(50)

AS

  BEGIN

    DECLARE  @DailySpecial NVARCHAR(50),

             @DayOfWeek    CHAR(10)

    

    SET @DayOfWeek = UPPER(DateName(dw,getdate()))

    

    IF @DayOfWeek = 'MONDAY'

      SET @DailySpecial = 'Chicken breast a''la San Francisco'

    

    IF @DayOfWeek = 'TUESDAY'

      SET @DailySpecial = 'Hungarian beef goulash'

    

    IF @DayOfWeek = 'WEDNESDAY'

      SET @DailySpecial = 'Almond-crusted scrod with penne pasta'

    

    IF @DayOfWeek = 'THURSDAY'

      SET @DailySpecial = 'Hamburger with sauteed mushrooms and onions'

    

    IF @DayOfWeek = 'FRIDAY'

      SET @DailySpecial = 'Cajun shrimp New Orleans style'

    

    IF @DayOfWeek = 'SATURDAY'

        OR @DayOfWeek = 'SUNDAY'

      SET @DailySpecial = 'Sorry no special today'

    

    RETURN (@DailySpecial)

  END

GO

 

SELECT DailySpecial = dbo.fnRoadsideDinerDailySpecial()

GO

-- Cajun shrimp New Orleans style

 

Exam Prep 70-461
Exam 70-461
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