CockroachDB Basics

1. Introduction

CockroachDB is a distributed SQL database that is designed for cloud-native applications. It offers strong consistency, horizontal scalability, and resilience to failures, making it an ideal choice for modern applications.

2. Key Concepts

Architecture

CockroachDB uses a distributed architecture where data is spread across multiple nodes. This ensures high availability and fault tolerance.

3. Installation

To install CockroachDB, follow these steps:

1. Download the binary from the CockroachDB website.
2. Unzip the downloaded file and move the binary to your PATH.
3. Run the following command to start a single-node cluster:

cockroach start --insecure --listen-addr=localhost:26257 --http-port=8080

4. Usage

To interact with CockroachDB, you can use the SQL shell. Here’s how to create a database and a table:

cockroach sql --insecure

CREATE DATABASE mydb;

USE mydb;

CREATE TABLE users (
    id SERIAL PRIMARY KEY,
    name STRING,
    email STRING UNIQUE
);

5. Best Practices

• Use secure connections (TLS) for client connections.
• Regularly back up your databases.
• Monitor performance metrics and adjust resources accordingly.

6. FAQ