Book Image

SQL Server 2019 Administrator's Guide - Second Edition

By : Marek Chmel, Vladimír Mužný
Book Image

SQL Server 2019 Administrator's Guide - Second Edition

By: Marek Chmel, Vladimír Mužný

Overview of this book

SQL Server is one of the most popular relational database management systems developed by Microsoft. This second edition of the SQL Server Administrator's Guide will not only teach you how to administer an enterprise database, but also help you become proficient at managing and keeping the database available, secure, and stable. You’ll start by learning how to set up your SQL Server and configure new and existing environments for optimal use. The book then takes you through designing aspects and delves into performance tuning by showing you how to use indexes effectively. You’ll understand certain choices that need to be made about backups, implement security policy, and discover how to keep your environment healthy. Tools available for monitoring and managing a SQL Server database, including automating health reviews, performance checks, and much more, will also be discussed in detail. As you advance, the book covers essential topics such as migration, upgrading, and consolidation, along with the techniques that will help you when things go wrong. Once you’ve got to grips with integration with Azure and streamlining big data pipelines, you’ll learn best practices from industry experts for maintaining a highly reliable database solution. Whether you are an administrator or are looking to get started with database administration, this SQL Server book will help you develop the skills you need to successfully create, design, and deploy database solutions.
Table of Contents (17 chapters)
1
Section 1: Provisioning the SQL Server Environment
4
Section 2: Server and Database Maintenance
9
Section 3: High Availability and the Cloud with SQL Server 2019

Using database and log restore

The restore feature in SQL Server is used for data recovery in case of corruption and heavily relies on how data is backed up. In this section, we will cover the following topics:

  • Preparation steps before the restore process starts
  • Restore scenarios, depending on backup strategies

We'll start with the preparation steps first.

Preparing for restore

Before a database is restored, we must decide on the type of corruption and which backup sets are already available for restore. If we have more backups to be restored (a full backup combined with other backup types), we need to handle the recovery process as well.

The recovery process was described in the Transaction log section but let's recall the recovery process one more time. SQL Server uses write-ahead logging (WAL) for very detailed transaction actions. These transaction log records are written before the action is...