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Learning PostgreSQL

You're reading from Learning PostgreSQL

Product type Book

Published in Nov 2015

Publisher Packt

ISBN-13 9781783989188

Pages 464 pages

Edition 1st Edition

Languages

Concepts

Database Programming

Table of Contents (21) Chapters

Learning PostgreSQL

Credits

About the Authors

About the Reviewers

www.PacktPub.com

Preface

1. Relational Databases

2. PostgreSQL in Action

3. PostgreSQL Basic Building Blocks

4. PostgreSQL Advanced Building Blocks

5. SQL Language

6. Advanced Query Writing

7. Server-Side Programming with PL/pgSQL

8. PostgreSQL Security

9. The PostgreSQL System Catalog and System Administration Functions

10. Optimizing Database Performance

11. Beyond Conventional Data types

12. Testing

13. PostgreSQL JDBC

14. PostgreSQL and Hibernate

Index

PostgreSQL capabilities

PostgreSQL provides enterprise-level services which guarantee the continuation of the business.

Replication

Replication allows data from one database server to be replicated to another server. Replication is used mainly to achieve the following:

High availability: A second server can take over if the primary server fails.
Load balancing: Several servers can serve the same requests.
Faster execution: A query is executed on several machines at once to gain performance.

PostgreSQL supports replication out of the box via streaming replication. Streaming replication is a master-slave replication that uses file-based log shipping. Streaming replication is a binary replication technique, because SQL statements are not analyzed. It is based on taking a snapshot of the master node, and then shipping the changes—the WAL files—from the master node to the slave node and replaying them on the slave. The master can be used for read/write operations, and the slave can be used to serve...

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