Foreign keys are an important part of a relational database. New author Ravi Lobo takes a look at foreign keys from the perspective of a new DBA with some scripts to help you ensure your database is setup correctly.
2006-05-31
19,919 reads
At just about every talk I give I always try to make several consistent statements. One of which is: ‘Whenever possible use stored procedures to access your data’.
2006-05-29
3,437 reads
Let me start by stating some disclaiming remarks. I'm not against stored procedures in general, I find that the choice why procedures should be used, should be based on proper facts, not on claims without any proof.
2006-05-29
4,315 reads
My CIO and I have looked at a number of commercial solutions for documenting Sarbanes-Oxley compliance. However, we decided to use SQL Server 2005's built-in tools to create our own "home-grown" auditing system.
2006-05-19
3,877 reads
This article explains the different technologies that are available for scaling out a SQL Server 2005 database application, focusing on the factors that go into deciding which solution(s) to use in your application.
2006-05-09
2,685 reads
As part of my research with the University of Melbourne, I asked 55 attendees of advanced data modeling seminars in the US (25 attendees) and UK (30 attendees) to list the stages in database design, including data modeling.
2006-05-05
3,422 reads
Healthcare applications come and go, but data live on forever. We’ve seen that since the beginning of the computer industry; when we move from legacy systems into more “modern” architectures, we often leave behind applications, but we almost always take along the data into the future. Even though data are so important, we in health-IT don’t seem to spend the quality time necessary to structure our schemas and databases in such a way as to make it easier to maintain in the future. We often don’t design our data models solidly, and we don’t test them well by putting them through simulations or design them for multiple versions.
2006-03-27
2,502 reads
Rules play a central role in a wide variety of applications. In addition to the declarative specification of business rules, the simple rule engine design described in this article can be used to implement state machines, predicate dispatchers, or any other rule-based system.
2006-03-10
3,958 reads
What is the cost of DRI and is it something that you should implement? SQL Server expert David Poole takes a look at the impact of adding DRI to a CMS system and provides some real world results on which you can base your decision.
2006-03-02
16,820 reads
Should you use dynamic or static SQL in your SQL Server application? This is a hotly debated topic and Arthur Fuller brings his thoughts to this debate.
2006-02-06
3,278 reads
By Steve Jones
Thanks to everyone that attended my sessions at VS Live San Diego yesterday. It...
By Steve Jones
I was creating a question on sp_readerrorlog and realized that this procedure is different...
By SQLPals
Why sys.fn_dblog Is Undocumented And Why It's Still There Why sys.fn_dblog...
Telp/Wa 62 8218200233 Shopping Arcade, The Mansion At Kemang, Jl. Kemang Raya No.3-5, RT.1/RW.7,...
Telp/Wa 62 8218200203 Jl. Jend. Sudirman No.Kav.47, RT.5/RW.4, Karet Semanggi, Kecamatan Setiabudi, Kota Jakarta...
Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...
I run this code on SQL Server 2022.
CREATE TABLE Drink
(
drinkid INT NOT NULL
CONSTRAINT DrinkPK PRIMARY KEY CLUSTERED,
drinkname VARCHAR(20),
rating NUMERIC(2, 1)
)
GO
INSERT INTO Drink
(
drinkid,
drinkname,
rating
)
VALUES
(1, 'Margarita', 4.5),
(2, 'Mojito', 4.3),
(3, 'Old Fashioned', 4.7),
(4, 'Martini', 4.4),
(5, 'Cosmopolitan', 4.2)
GO
ALTER INDEX drinkpk ON dbo.drink DISABLE
GO
SELECT * FROM dbo.Drink
GO
What is the result? See possible answers