SQLServerCentral Article

Sic Semper NULL

The great debate over NULLs will probably never end. Should we use them in our databases? What meaning do they have? These are all
valid questions. In this article SQL Server expert Michael Coles takes a look at the problems that are inherent in eliminating NULLs completely from
a database.

Technical Article

The NEWSEQUENTIALID Function

The NEWSEQUENTIALID system function is an addition to SQL Server 2005. It seeks to bring together, what used to be, conflicting requirements in SQL Server 2000; namely identity-level insert performance and globally unique values.

External Article

Using Multiple Active Result Sets (MARS)

SQL Server 2005 has so many new features that in my opinion if you read only BOL for a year you'd find something new every day. One of those is Multiple Active Result Sets or MARS. Multiple Active Result Sets is a new SQL Server 2005 feature that, putting it simply, allows the user to run more than one SQL batch on an open connection at the same time.

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Delivering on SQL Server

Having been at the sharp end of many successful SQL Server solutions, I believe there are some fundamental principles that all successful SQL Server installations have in common. Whilst the challenges in delivering an enterprise-scale database-intensive application can be wide and varied, there are a few basic practises that will give you the best possible chance of success.

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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