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MariaDb Essentials

MariaDb Essentials

By : Kenler
4.5 (2)
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MariaDb Essentials

MariaDb Essentials

4.5 (2)
By: Kenler

Overview of this book

This book will take you through all the nitty-gritty parts of MariaDB, right from the creation of your database all the way to using MariaDB’s advanced features. At the very beginning, we show you the basics, that is, how to install MariaDB. Then, we walk you through the databases and tables of MariaDB, and introduce SQL in MariaDB. You will learn about all the features that have been added in MariaDB but are absent in MySQL. Moving on, you’ll learn to import and export data, views, virtual columns, and dynamic columns in MariaDB. Then, you’ll get to grips with full-text searches and queries in MariaDb. You’ll also be familiarized with the CONNECT storage engine. At the end of the book, you’ll be introduced to the community of MariaDB.
Table of Contents (10 chapters)
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9
Index

Indexing

Operations on databases can be complex. Often, MariaDB has to examine several data to find the rows that we want to read. It may also have to perform complex operations, such as aggregating data or sorting values. Typical operations on data will be described in Chapter 3, Getting Started with SQL. Here we will briefly discuss the data structure used to optimize these operations—that is, indexes. Key is a synonym for index.

Note

Note that different storage engines implement indexes in different ways. The following discussion refers to InnoDB, which is the most commonly used engine. If we use other engines, such as MEMORY or MyISAM, we may need to check the MariaDB KnowledgeBase to learn how these engines handle indexes.

To explain what an index is, we are going to use a typical example: a book's index. Imagine we have to find a topic, or some specific information, in a big book that we have never read before, and which does not have an index. We would need a lot of time...

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