Book Image

Getting Started with CockroachDB

By : Kishen Das Kondabagilu Rajanna
Book Image

Getting Started with CockroachDB

By: Kishen Das Kondabagilu Rajanna

Overview of this book

Getting Started with CockroachDB will introduce you to the inner workings of CockroachDB and help you to understand how it provides faster access to distributed data through a SQL interface. The book will also uncover how you can use the database to provide solutions where the data is highly available. Starting with CockroachDB's installation, setup, and configuration, this SQL book will familiarize you with the database architecture and database design principles. You'll then discover several options that CockroachDB provides to store multiple copies of your data to ensure fast data access. The book covers the internals of CockroachDB, how to deploy and manage it on the cloud, performance tuning to get the best out of CockroachDB, and how to scale data across continents and serve it locally. In addition to this, you'll get to grips with fault tolerance and auto-rebalancing, how indexes work, and the CockroachDB Admin UI. The book will guide you in building scalable cloud services on top of CockroachDB, covering administrative and security aspects and tips for troubleshooting, performance enhancements, and a brief guideline on migrating from traditional databases. By the end of this book, you'll have gained sufficient knowledge to manage your data on CockroachDB and interact with it from your application layer.
Table of Contents (17 chapters)
1
Section 1: Getting to Know CockroachDB
4
Section 2: Exploring the Important Features of CockroachDB
9
Section 3: Working with CockroachDB
Appendix: Bibliography and Additional Resources

DDL

DDL statements are mainly responsible for creating, altering, and dropping tables, indexes, and users. DDL statements typically comprise CREATE, ALTER, and DROP operations. In this section, we will go over various DDL operations and their syntax, starting with CREATE.

CREATE

CREATE is the keyword used for creating something new such as a database, schema, table, view, or user.

A CREATE DATABASE statement accepts the following parameters:

  • IF NOT EXISTS: Creates a new database, only if the database with the same name does not exist previously
  • database_name: Name of the database to be created

The following databases are created by default and are used internally by CockroachDB:

  • postgres: Empty database that is provided for compatibility with Postgres clients
  • system: A database that contains CockroachDB metadata and that is read-only

The following default database is used for default connections:

  • defaultdb: Used when a client...