You're reading from The SQL Workshop

Product typeBook

Published inDec 2019

Reading LevelBeginner

PublisherPackt

ISBN-139781838642358

Edition1st Edition

Languages

SQL

Tools

SQL Server

Concepts

Databases

Authors (3):

Frank Solomon

Prashanth Jayaram

Awni Al Saqqa

View More author details

Second Normal Form (2NF)

Before you understand the second normal form, let's explore what dependency is with the help of the following scenario.

In an enterprise, it is important that the security updates are installed on every server. This process is known as patching the servers. Typically, updates get installed every month, and at the end of the month, many organizations check the percentage of servers that had been patched during the month. This number is calculated based on how many servers have how many patches in the installed and not required state. This calculation is done per server. Apart from the operating system updates, we would also like to install application updates. Therefore, based on what team we are talking about and what applications they own, the percentage of compliance can change.

For example, imagine that Microsoft released four updates to the Windows operating system. Citrix Systems, Inc, a multinational software company, released one update to...

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The SQL Workshop

Published in: Dec 2019Publisher: PacktISBN-13: 9781838642358

Authors (3)

Frank Solomon

Frank Solomon started out building front-end and database software with Microsoft stack tools such as SQL Server and ASP and then extended into ASP.NET, C#, VB.NET, JavaScript, and more. He learns about new products, languages, and technologies all the time, and he pushed into technical writing as a way to present and express his research and discoveries. He works as a contractor right now. He has worked in start-ups himself, and he knows that the hard work of writers and developers makes the end user experience easier.
Read more about Frank Solomon

Prashanth Jayaram

Prashanth Jayaram is a database technologist, blogger, engineering lead, automation expert, TechNet wiki ninja, PowerShell Geek, and technologist enthusiast with extensive experience in designing database solutions. He is the author of PowerShell 6.0 Linux Administration Cookbook and has hands-on experience with the next generation database technologies. He has been awarded as ABOVE and BEYOND and Best SQL Author 2018 towards his contribution to SQL Server technology. He has articulated over 200+ articles widespread across SQL, NoSQL, PowerShell, Python, SQL on Linux, SQL on Azure, and SQL on AWS arenas.
Read more about Prashanth Jayaram

Awni Al Saqqa

Awni Al Saqqa is a Microsoft Technology Specialist in MS SQL Server and a certified solutions developer since 2007. He has over a decade of experience with database development and administration on SQL Server, Oracle, and MySQL. He is a solutions architect, who is hands-on in many enterprise projects for different business sectors, such as education, hospitality, retail, manufacturing, marketing, and more, which has given him the perfect combination between business and technical experience.
Read more about Awni Al Saqqa

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Second Normal Form (2NF)

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