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

In-Memory OLTP architecture

In-Memory OLTP is a feature of SQL Server that offers the option to create memory-optimized tables and natively compiled modules just like stored procedures. In-Memory OLTP utilizes a portion of memory up to a limit set by the given edition of SQL Server (for example, Enterprise Edition). The data of the memory-optimized tables is placed in memory. Transactions working with data in memory-optimized tables are controlled in optimistic row-versioning mode. Both properties – the memory utilization and optimistic transaction control – lead to a throughput in the database of up to 30 times greater. The adoption of In-Memory OLTP is quite easy from a developers's perspective as the development effort is not increased with new syntax. The traditional T-SQL approach has been kept by Microsoft to ease the adoption of the feature. Besides the simplicity of the development effort, In-Memory OLTP brings great performance benefits to the database.