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)
Section 1: Provisioning the SQL Server Environment
Section 2: Server and Database Maintenance
Section 3: High Availability and the Cloud with SQL Server 2019

SQL Server Agent security

As was discussed at the beginning of this chapter, SQL Server Agent is a service that logs itself into the host operating system. However, we should also take into consideration two more things about security – who is allowed to create jobs and what the user context of the executed job steps is. The following paragraphs explain how to properly secure SQL Server Agent.

SQL Server Agent security roles

SQL Server Agent is almost useless without jobs. As jobs execute a bunch of repetitive administrative tasks, such as backups, database consistency checks, and more, we should carefully control who is allowed to define jobs. Most jobs created in real-life scenarios are created by members of the sysadmin group, but sometimes the DBA is asked to allow job creation for users who are not DBAs. In this case, the job creation and execution rights are pre-defined in the msdb database with the following database roles, sorted from the weakest role to the strongest...