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Learning PostgreSQL 11
Learning PostgreSQL 11

Learning PostgreSQL 11: A beginner's guide to building high-performance PostgreSQL database solutions , Third Edition

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Profile Icon Christopher Travers Profile Icon Volkov
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Full star icon Full star icon Half star icon Empty star icon Empty star icon 2.7 (6 Ratings)
Paperback Jan 2019 556 pages 3rd Edition
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Arrow left icon
Profile Icon Christopher Travers Profile Icon Volkov
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€32.99
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Paperback Jan 2019 556 pages 3rd Edition
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Learning PostgreSQL 11

PostgreSQL in Action

PostgreSQL (pronounced Post-Gres-Q-L), or postgres for short, is an open source object-relational-database management system. It emphasizes extensibility and creativity as well as compatibility. It competes with the major relational database vendors, such as Oracle, MySQL, and Microsoft SQL Server (MSSQL). It's used by different sectors, including government agencies and the public and private sectors. It's a cross-platform DBMS, and it runs on most modern operating systems, including Windows, macOS, and Linux flavors. It conforms to SQL and is ACID-compliant.

By the end of this chapter, the user should be able to install PostgreSQL, establish a connection to the server, and run very basic queries. Also, the user will know general information about PostgreSQL's history and capabilities. In this chapter, we will explore the following topics:

...

An overview of PostgreSQL

PostgreSQL (http://www.PostgreSQL.org/) has many useful features. It provides enterprise-level services, including performance, unique features, and scalability. It has a very supportive community and very good documentation.

PostgreSQL history

PostgreSQL was started as a project at the University of California at Berkeley (UCB), then it was developed by the community in 1996.

So far, PostgreSQL is actively developed by the PostgreSQL community as well as universities. The following time frames show the history of PostgreSQL's development:

  • 1977-1985, the Ingres project: Michael Stonebraker created a relational database management system (RDBMS) based on the formal relational model.
  • 1986-1994...

PostgreSQL capabilities

PostgreSQL provides enterprise-level services that guarantee the continuation of the business. For example, PostgreSQL supports replication, which enables the developers to provide HA solutions. PostgreSQL can integrate data from different data sources; this makes it easy for developers to use it for ETL jobs. In addition, PostgreSQL security is treated as a first-class citizen. Security update patches are shipped in minor releases to make it easier for administrators to upgrade PostgreSQL.

Finally, the features of PostgreSQL are endless: PostgreSQL provides advanced SQL statements, very rich extensions, and interactive tools.

Replication

Replication allows data from one database server to be replicated...

Installing PostgreSQL

PostgreSQL can be installed on almost all modern operating systems. It can be installed on all recent Linux distributions, Windows 2000 SP4 and later, FreeBSD, OpenBSD, macOS, AIX, and Solaris. Also, PostgreSQL can work on various CPU architectures, including x86, x86_64, and IA64. You can check whether a platform (operating system and CPU architecture combination) is supported by exploring the PostgreSQL build farm at http://buildfarm.postgresql.org/. You can compile and install

In order to automate PostgreSQL installation and to reduce server administrative tasks, it's recommended you use PostgreSQL binaries, which come with the operating system packaging system. This approach normally has one drawback: binaries that aren't up to date. However, PostgreSQL's official website maintains the binaries for the most common platforms, including BSD...

Summary

PostgreSQL is an open source, object-oriented relational database system. It supports many advanced features and complies with the ANSI-SQL standard. It has won industry recognition and user appreciation. The PostgreSQL slogan, The world's most advanced open source database, reflects the sophistication of PostgreSQL's features. It's a result of many years of research and collaboration between academia and industry. Start-up companies often favor PostgreSQL due to licensing costs, and it can aid profitable business models. PostgreSQL is also favored by many developers because of its capabilities and advantages.

PostgreSQL can be used for OLTP and OLAP applications. It is ACID-compliant; thus, it can be used out of the box for OLTP applications. For OLAP applications, PostgreSQL supports the Windows functions, FDW, table inheritance, declarative table partitioning...

Questions

  1. What's the difference between logical and streaming replication?
  2. Why do PostgreSQL security updates often require minimal downtime?
  3. What's the name of the main process of the PostgreSQL server?
  4. When installing PostgreSQL on Linux, you don't need to provide a password; what's the reason for this?
  5. What is Greenplum?
  6. What's meant by a physical backup and what utilities does PostgreSQL provide to achieve this?
  7. A developer destroyed some data by mistake on a database cluster. Do you think the administrator can recover PostgreSQL to a specific point in time?
  8. We briefly mentioned the CLUSTER and REINDEX statements. Use the psql tool's client meta-command to get the syntax for the CLUSTER and INDEX statements.
  9. Why is the psql tool very handy in shell scripting?
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Key benefits

  • Monitor, secure, and fine-tune your PostgreSQL 11 database
  • Learn client-side and server-side programming using SQL and PL/pgSQL
  • Discover tips on implementing efficient database solutions

Description

PostgreSQL is one of the most popular open source database management systems in the world, and it supports advanced features included in SQL standards. This book will familiarize you with the latest features in PostgreSQL 11, and get you up and running with building efficient PostgreSQL database solutions from scratch. Learning PostgreSQL, 11 begins by covering the concepts of relational databases and their core principles. You’ll explore the Data Definition Language (DDL) and commonly used DDL commands supported by ANSI SQL. You’ll also learn how to create tables, define integrity constraints, build indexes, and set up views and other schema objects. As you advance, you’ll come to understand Data Manipulation Language (DML) and server-side programming capabilities using PL/pgSQL, giving you a robust background to develop, tune, test, and troubleshoot your database application. The book will guide you in exploring NoSQL capabilities and connecting to your database to manipulate data objects. You’ll get to grips with using data warehousing in analytical solutions and reports, and scaling the database for high availability and performance. By the end of this book, you’ll have gained a thorough understanding of PostgreSQL 11 and developed the necessary skills to build efficient database solutions.

Who is this book for?

This book is for you if you're interested in learning about PostgreSQL from scratch. Those looking to build solid database or data warehousing applications or wanting to get up to speed with the latest features of PostgreSQL 11 will also find this book useful. No prior knowledge of database programming or administration is required to get started.

What you will learn

  • Understand the basics of relational databases, relational algebra, and data modeling
  • Install a PostgreSQL server, create a database, and implement your data model
  • Create tables and views, define indexes and stored procedures, and implement triggers
  • Make use of advanced data types such as Arrays, hstore, and JSONB
  • Connect your Python applications to PostgreSQL and work with data efficiently
  • Identify bottlenecks to enhance reliability and performance of database applications
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Table of Contents

18 Chapters
Relational Databases Chevron down icon Chevron up icon
PostgreSQL in Action Chevron down icon Chevron up icon
PostgreSQL Basic Building Blocks Chevron down icon Chevron up icon
PostgreSQL Advanced Building Blocks Chevron down icon Chevron up icon
SQL Language Chevron down icon Chevron up icon
Advanced Query Writing Chevron down icon Chevron up icon
Server-Side Programming with PL/pgSQL Chevron down icon Chevron up icon
OLAP and Data Warehousing Chevron down icon Chevron up icon
Beyond Conventional Data Types Chevron down icon Chevron up icon
Transactions and Concurrency Control Chevron down icon Chevron up icon
PostgreSQL Security Chevron down icon Chevron up icon
The PostgreSQL Catalog Chevron down icon Chevron up icon
Optimizing Database Performance Chevron down icon Chevron up icon
Testing Chevron down icon Chevron up icon
Using PostgreSQL in Python Applications Chevron down icon Chevron up icon
Scalability Chevron down icon Chevron up icon
What's Next? Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

Customer reviews

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Rating distribution
Full star icon Full star icon Half star icon Empty star icon Empty star icon 2.7
(6 Ratings)
5 star 16.7%
4 star 16.7%
3 star 0%
2 star 50%
1 star 16.7%
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RENATO ESTEVAM LANGE DE TOLEDO E SILVA Jun 17, 2019
Full star icon Full star icon Full star icon Full star icon Full star icon 5
no complains.
Amazon Verified review Amazon
adrenalin Mar 23, 2019
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
This book goes through a multitude of aspects, in which it is a good reference to the different sides of Postgres, but at the same time its Achilles’ heel: no time to explain everything in detail for the beginners.So if you already have some background with databases this covers quickly enough everything needed, but if you don’t it will leave the homework for you to study more, and some concepts might still be difficult to grasp.Esch chapter ends with a questionnaire. If you can answer the questions you can hop on to the chapter less familiar.
Amazon Verified review Amazon
Glen W. May 10, 2019
Full star icon Full star icon Empty star icon Empty star icon Empty star icon 2
The author(s) clearly know PosgreSQL at expert level. Unfortunately, much information is presented outside of a framework for comprehension and retention. For example, if someone walks up to you on the street and starts giving you directions your brain is stuck on "why am I getting directions". If you are given the address you know where the directions go, but your brain is stuck on "why would I go to that address". If you are told free beer/cupcakes/books/money/etc are being given away for the next 15 minutes, well then you care and are able to absorb the instructions.Before the book even gets into how to make a table it's telling you about commandline options to ignore configurations in the ~/.psqlrc file...WHO CARES?!!! (page 68) This is just one example of many where the book presents technical information without laying the groundwork for why the information is worth remembering/understanding/using.I'm not new to databases, system admin, or coding. But, I am new to Linux and PostgreSQL. I've spent 30 years in the Microsoft tech stack and am now branching out. This book is quite hard to learn from (so far) because information is presented out of sequence from when the reader can grasp its usefulness. This is somewhat true of chapter one, and very true of chapter 2. I will update this post as I make my way through the book.
Amazon Verified review Amazon
undrpaidtekmnky Nov 08, 2019
Full star icon Full star icon Empty star icon Empty star icon Empty star icon 2
While this book is very thorough, it is not for beginners. Key concepts are simply mentioned, and then forgotten without any sort of explanation or in depth study. Thr author's writing style and organisation are extremely chaotic, and do not create a positive experience for the reader. The information IS all in there, however, this book would benefit from a complete reorganisation and further in depth discussion of the concepts that a beginner will absolutely need to move forward.
Amazon Verified review Amazon
OldFashioned Feb 13, 2020
Full star icon Full star icon Empty star icon Empty star icon Empty star icon 2
As with other purchasers I was massively disappointed with this book. The authors are far too expert at postgres and totally untroubled by giving a structured learning experience that will lead a newbie into any kind of pleasing experience. Within a few pages the authors manage to really annoy by just dropping complicated scripts into the text, without explanation - and time and again. Sure, the information is there (much later) but it is disjointed and truly irritating. Sorry - but the editors and reviewers for the book before publishing deserve to be censured for such a poorly laid out book.Recommended as a resource to flick through to fix issues when they arise. Not for a newbie. Not to learn postyres from.
Amazon Verified review Amazon
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