Jeffrey Williams


Technical Article

Fiscal/Retail 4-5-4 Calendar Function

This function returns a 3 year calendar based on a 4-5-4/5-4-4/4-4-5 calendar, also known as a 52/53 week calendar.  The basis of this calendar function was derived from the NRF retail calendar published at https://nrf.com/resources/4-5-4-calendar and the Wikipedia article published at https://en.wikipedia.org/wiki/4%E2%80%934%E2%80%935_calendar. The calendar function requires 2 helper functions.  The helper functions were derived from […]

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2020-09-21 (first published: )

2,910 reads

Technical Article

Calculating Easter in SQL

Several months ago someone commented on a calendar thread that you should not even try to calculate Easter in SQL Server because the math was too hard.  That got me to thinking and I decided to see if that was actually the case. I found that there are several well known algorithms available - but […]

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2020-04-06 (first published: )

4,884 reads

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Question of the Day

The Tightly Linked View

I try to run this code on SQL Server 2022. All the objects exist in the database.

CREATE OR ALTER VIEW OrderShipping
AS
SELECT cl.CityNameID,
       cl.CityName,
       o.OrderID,
       o.Customer,
       o.OrderDate,
       o.CustomerID,
       o.cityId
 FROM dbo.CityList AS cl
 INNER JOIN dbo.[Order] AS o ON o.cityId = cl.CityNameID
GO
CREATE OR ALTER FUNCTION GetShipCityForOrder
(
    @OrderID INT
)
RETURNS VARCHAR(50)
WITH SCHEMABINDING
AS
BEGIN
    DECLARE @city VARCHAR(50);
    SELECT @city = os.CityName
    FROM dbo.OrderShipping AS os
    WHERE os.OrderID = @OrderID;
    RETURN @city;
END;
go
What is the result?

See possible answers