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SQL Server 2019 Administrator's Guide

SQL Server 2019 Administrator's Guide - Second Edition

By : Marek Chmel , Vladimír Mužný
4.5 (11)
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SQL Server 2019 Administrator's Guide

SQL Server 2019 Administrator's Guide

4.5 (11)
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)
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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

Data structures and transaction logging

We usually think of a database as a physical structure consisting of tables containing columns and rows of data and indexes. However, this is just a human point of view. From SQL Server's perspective, a database is a set of precisely structured files described in the form of metadata, also saved in the same database structures within the database. We are starting this chapter with an explanation of storage internals because a conceptual imagination of how every database works is very helpful when the database needs to be backed up correctly.

How data is stored

Every database on SQL Server must have at least two files:

  • The primary data file with the usual suffix, mdf
  • The transaction log file with the usual suffix, ldf

For most databases, this minimal set of files is enough. However, when the database contains big amounts...

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SQL Server 2019 Administrator's Guide
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