Database Design

Technical Article

Relational Databases 101

  • Article

In this sample chapter, William R. Vaughn gives you a kick-start on designing relational databases that can perform better, be easier to maintain, and be more successful thanks to a combination of formal rules and informal suggestions to normalize your database.

2007-12-10

3,397 reads

Technical Article

Too Simple, Too Soon

  • Article

The author explains an application development approach advocated by many proponents of agile application development that can cause future problems for developers, while potentially sacrificing the integrity and reusability of the data.

2007-11-28

3,689 reads

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Question of the Day

The Funny SELECTs

What is returned from this query?

SELECT
  ( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
    WHERE soh.OrderDate >= '01/01/2011' AND soh.OrderDate < '01/01/2012') AS OrdersIn2011
, ( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
    WHERE soh.OrderDate >= '01/01/2012' AND soh.OrderDate < '01/01/2013') AS OrdersIn2012
, ( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
    WHERE soh.OrderDate >= '01/01/2013' AND soh.OrderDate < '01/01/2014') AS OrdersIn2013;

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