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  • Book Overview & Buying Getting Started with SQL Server 2014 Administration
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Getting Started with SQL Server 2014 Administration

Getting Started with SQL Server 2014 Administration

By : Gethyn Ellis
3.6 (5)
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Getting Started with SQL Server 2014 Administration

Getting Started with SQL Server 2014 Administration

3.6 (5)
By: Gethyn Ellis
Buy this Book

Overview of this book

This is an easytofollow handson tutorial that includes real world examples of SQL Server 2014's new features. Each chapter is explained in a stepbystep manner which guides you to implement the new technology. If you want to create an highly efficient database server then this book is for you. This book is for database professionals and system administrators who want to use the added features of SQL Server 2014 to create a hybrid environment, which is both highly available and allows you to get the best performance from your databases.
Table of Contents (13 chapters)
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Getting Started with SQL Server 2014 Administration
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Getting Started with SQL Server 2014 Administration
Credits
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Credits
About the Author
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About the Author
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
SQL Server 2014 and Cloud
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SQL Server 2014 and Cloud
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Windows Azure SQL Database
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Integrating Microsoft Azure Storage
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Microsoft Azure Virtual Machines
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Summary
2
Backup and Restore Improvements
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Backup and Restore Improvements
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Database backups to a URL and Microsoft Azure Storage
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Restoring a backup stored on Windows Azure Storage
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SQL Server Managed Backup to Microsoft Azure
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Encryption
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Summary
3
In-Memory Optimized Tables
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In-Memory Optimized Tables
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Requirements
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Virtualized environments
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Memory-optimized tables
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Summary
4
Delayed Durability
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Delayed Durability
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Understanding the full transaction durability
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Understanding the delayed transaction durability
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Full Durability versus Delayed Durability
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Using delayed transaction durability
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Delayed Durability and transaction log flush
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Delayed Durability and potential data loss
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Delayed Durability and other SQL Server components
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Summary
5
AlwaysOn Availability Groups
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AlwaysOn Availability Groups
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Introducing AlwaysOn Availability Groups
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Enhancements in AlwaysOn Availability Groups
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Using Microsoft Azure Virtual Machines as replicas
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Building AlwaysOn Availability Groups
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Creating Availability Group
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Troubleshooting Availability Groups
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Creating a cloud-based AlwaysOn Availability Group
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Summary
6
Performance Improvements
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Performance Improvements
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Partition switching and indexing
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Columnstore indexes
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Buffer pool extensions
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Cardinality estimator and query plans
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Statistics
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Resource Governor
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Summary
1
Index
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Index

Troubleshooting Availability Groups

A new system function has been added that will help you identify if the database and instance you are currently working on is the primary replica. The function is called sys.fn_hadr_is_primary_replica and the syntax for the is function is as follows:

sys.fn_hadr_is_primary_replica ( 'dbname' )

Here, 'dbname' is the name of the database you want to check. The procedure returns a 1, if it evaluates to true, that is, it is the primary replica. You can combine this with some logical code to determine which section of the code to run depending on whether the replica is currently the primary replica.

The following script will back up your database if the current instance that it runs is the primary instance:

declare @dbname varchar(30)
declare @backuplocation varchar(80)

set @dbname = 'DB1'
Set @backuplocation = 'c:\BACKUP\'
set @backuplocation = @backuplocation + @dbname
If sys.fn_hadr_is_primary_replica ( @dbname ) <> 1 
begin 
SELECT 'Nothing to backup...
CONTINUE READING
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Getting Started with SQL Server 2014 Administration
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