Book Image

What's New in SQL Server 2012

Book Image

What's New in SQL Server 2012

Overview of this book

Microsoft SQL Server has been part of the enterprise database landscape since SQL Server 7 arrived in 1998 and has evolved into the relational and BI platform of choice by businesses around the globe. The performance and full feature set of SQL Server has been widely recognized by the business community and it is viewed as a powerful weapon in their database and business intelligence arsenal. SQL Server brings numerous benefits to all businesses, central to which is a thorough understanding of the technology, both current and new.This is the book both DBAs and developers always wanted to buy but could never find in the bookstore. This is a SQL Server book that contains only the new features introduced in SQL Server 2012.This book will give you a competitive advantage by helping you to quickly learn and understand the new features of SQL Server 2012. Most readers will already have an established knowledge of SQL Server and will want to update their 2008/2008R2 knowledge swiftly with least pain.This book takes you through all of the new features of SQL Server 2012, from installing core database services and features, to the new administration and updated Transact-SQL functions. You will discover the new Analysis Services features, introduce data alerts and reporting features and explore the new enhancements to Integration Services. In addition you will learn how to automate, cleanse and transform critical business data with DQS and world-class enterprise level availability features.Finally, you will venture into simulating real-world database loads using Distributed Replay and complete your journey with a look at the new SQL Server cloud services and the new Hadoop big data platform.
Table of Contents (19 chapters)
What's New in SQL Server 2012
Credits
About the Authors
Acknowledgment
Acknowledgment
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
1
Installing SQL Server 2012
Index

Chapter 8. AlwaysOn

SQL Server 2012 has a multitude of new administrative features. Some of these features, such as AlwaysOn, could have an entire book devoted solely to them. We are not going to go through a full tutorial here, but instead we will take a look at the basics, while throwing in a few tips to give you a flavor of what AlwaysOn involves.

It should be noted that AlwaysOn is very much a marketing term, which simply encompasses availability groups and clustering. It seems to be a common misconception that availability groups have replaced SQL Server mirroring, but they have not. If you don't need availability groups, nor wish to introduce the complexity of clusters into your environment, mirroring is still available to you, just as it was in SQL Server 2008. However, read on, as this situation will eventually change.