Search icon Close icon
Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.

Change country

Modal Close icon
Country selected Country selected
country flag United States
Country selected
country flag United Kingdom
Country selected
country flag India
Country selected
country flag Germany
Country selected
country flag France
Country selected
country flag Canada
Country selected
country flag Russia
Country selected
country flag Spain
Country selected
country flag Brazil
Country selected
country flag Australia
Country selected
country flag Argentina
Country selected
country flag Austria
Country selected
country flag Belgium
Country selected
country flag Bulgaria
Country selected
country flag Chile
Country selected
country flag Colombia
Country selected
country flag Cyprus
Country selected
country flag Czechia
Country selected
country flag Denmark
Country selected
country flag Ecuador
Country selected
country flag Egypt
Country selected
country flag Estonia
Country selected
country flag Finland
Country selected
country flag Greece
Country selected
country flag Hungary
Country selected
country flag Indonesia
Country selected
country flag Ireland
Country selected
country flag Italy
Country selected
country flag Japan
Country selected
country flag Latvia
Country selected
country flag Lithuania
Country selected
country flag Luxembourg
Country selected
country flag Malaysia
Country selected
country flag Malta
Country selected
country flag Mexico
Country selected
country flag Netherlands
Country selected
country flag New Zealand
Country selected
country flag Norway
Country selected
country flag Philippines
Country selected
country flag Poland
Country selected
country flag Portugal
Country selected
country flag Romania
Country selected
country flag Singapore
Country selected
country flag Slovakia
Country selected
country flag Slovenia
Country selected
country flag South Africa
Country selected
country flag South Korea
Country selected
country flag Sweden
Country selected
country flag Switzerland
Country selected
country flag Taiwan
Country selected
country flag Thailand
Country selected
country flag Turkey
Country selected
country flag Ukraine
Country selected
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Home > Data > Database Administration > Mastering PostgreSQL 10
Mastering PostgreSQL 10
Mastering PostgreSQL 10

Mastering PostgreSQL 10: Expert techniques on PostgreSQL 10 development and administration

$43.99
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1 (1 Ratings)
Paperback Jan 2018 428 pages 1st Edition
eBook
$24.99 $35.99
Paperback
$43.99
Subscription
Free Trial
Renews at $19.99p/m
$43.99
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1 (1 Ratings)
Paperback Jan 2018 428 pages 1st Edition
eBook
$24.99 $35.99
Paperback
$43.99
Subscription
Free Trial
Renews at $19.99p/m
eBook
$24.99 $35.99
Paperback
$43.99
Subscription
Free Trial
Renews at $19.99p/m

What do you get with Print?

Product feature icon Instant access to your digital eBook copy whilst your Print order is Shipped
Product feature icon Paperback book shipped to your preferred address
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Table of content icon View table of contents Preview book icon Preview Book

Mastering PostgreSQL 10

Understanding Transactions and Locking

Locking is an important topic in any kind of database. It is not enough to understand just how it works to write proper or better applications; it is also essential from a performance point of view. Without handling locks properly, your applications might not only be slow, they might also be wrong and behave in very unexpected ways. In my opinion, locking is the key to performance and having a good overview will certainly help. Therefore, understanding locking and transaction is important for administrators and developers alike. In this chapter, you will learn the following topics:

  • Working with PostgreSQL transactions
  • Understanding basic locking
  • Making use of FOR SHARE and FOR UPDATE
  • Understanding transaction isolation levels
  • Considering SSI transactions
  • Observing deadlocks and similar issues
  • Optimizing storage and managing cleanups

At...

Working with PostgreSQL transactions

PostgreSQL provides you with a highly advanced transaction machinery that offers countless features to developers and administrators alike. In this section, it is time to look at the basic concept of transactions.

The first important thing to know is that in PostgreSQL, everything is a transaction. If you send a simple query to the server, it is already a transaction. Here is an example:

test=# \x 
Expanded display is on. 
test=# SELECT now(), now(); 
             now               |             now               
-------------------------------+------------------------------
 2017-08-24 16:03:27.174253+02 | 2017-08-24 16:03:27.174253+02
(1 row)

In this case, the SELECT statement will be a separate transaction. If the same command is executed again, different timestamps will be returned.

Keep in mind that the now() function will return the transaction...

Understanding basic locking

In this section, you will learn basic locking mechanisms. The goal is to understand how locking works in general and how to get simple applications right.

To show how things work, a simple table can be created. For demonstration purposes, I will add one row to the table:

test=# CREATE TABLE  t_test (id int);  
CREATE TABLE 
test=# INSERT INTO t_test VALUES (1);  
INSERT 0 1

The first important thing is that tables can be read concurrently. Many users reading the same data at the same time won't block each other. This allows PostgreSQL to handle thousands of users without problems.

Multiple users can read the same data at the same time without blocking each other.

The question now is: what happens if reads and writes occur at the same time? Here is an example. Let us assume that the table contains one row and its id = 0:

Transaction 1

Transaction...

Making use of FOR SHARE and FOR UPDATE

Sometimes, data is selected from the database; then some processing happens in the application and, finally, some changes are made back on the database side. This is a classic example of SELECT FOR UPDATE.

Here is an example:

BEGIN;
SELECT * FROM  invoice WHERE  processed = false; 
** application magic  will  happen here  **  
UPDATE invoice SET processed = true  ...  
COMMIT;

The problem here is that two people might select the same unprocessed data. Changes made to these processed rows will then be overwritten. In short, a race condition will occur.

To solve this problem, developers can make use of SELECT FOR UPDATE. Here is how it works:

BEGIN; 
SELECT * FROM invoice WHERE processed = false FOR UPDATE; 
** application magic  will  happen here  **  
UPDATE invoice SET processed = true ...  
COMMIT;

The SELECT FOR UPDATE will lock rows...

Understanding transaction isolation levels

Up until now, you have seen how to handle locking as well as some basic concurrency. In this section, you will learn transaction isolation. To me, this is one of the most neglected topics in modern software development. Only a small fraction of software developers are actually aware of this issue, which in turn leads to mind-boggling bugs.

Here is an example of what can happen:

Transaction 1

Transaction 2

BEGIN;

SELECT sum(balance) FROM t_account;

User will see 300

BEGIN;

INSERT INTO t_account (balance) VALUES (100);

COMMIT;

SELECT sum(balance) FROM t_account;

User will see 400

COMMIT;

Most users would actually expect the left transaction to always return 300 regardless of the second transaction. However, this is not true. By default, PostgreSQL runs in the READ COMMITTED transaction...

Observing deadlocks and similar issues

Deadlocks are an important issue and can happen in every database I am aware of. Basically, a deadlock will happen if two transactions have to wait on each other.

In this section, you will see how this can happen. Let's suppose we have a table containing two rows:

CREATE TABLE t_deadlock (id int); 
INSERT INTO t_deadlock VALUES (1), (2);

The next listing shows what can happen:

Transaction 1

Transaction 2

BEGIN;

BEGIN;

UPDATE t_deadlock

SET id = id * 10

WHERE id = 1;

UPDATE t_deadlock

SET id = id * 10

WHERE id = 2;

UPDATE t_deadlock

SET id = id * 10

WHERE id = 2;

Waiting on transaction 2

UPDATE t_deadlock

SET id = id * 10

WHERE id = 1;

Waiting on transaction 2

Waiting on transaction 1

Deadlock will be resolved after one second

(deadlock_timeout)

COMMIT;

ROLLBACK;

As soon as the deadlock...

Utilizing advisory locks

PostgreSQL has a highly efficient and sophisticated transaction machinery that is capable of handling locks in a really fine-grained and efficient way. Some years ago, some people came up with the idea of using this code to synchronize applications with each other.

Thus, advisory locks were born.

When using advisory locks, it is important to mention that they won't go away on COMMIT as normal locks do. Therefore, it is really important to make sure that unlocking is done properly and in a totally reliable way.

If you decide to use an advisory lock, what you really lock is a number. So, this is not about rows or data; it is really just a number. Here is how it works:

Session 1

Session 2

BEGIN;

SELECT pg_advisory_lock(15);

SELECT pg_advisory_lock(15);

It has to wait

COMMIT;

It still has to wait

SELECT pg_advisory_unlock...

Optimizing storage and managing cleanup

Transactions are an integral part of the PostgreSQL system. However, transactions come with a small price tag attached. As already shown in this chapter, it can happen that concurrent users will be presented with different data. Not everybody will get the same data returned by a query. In addition to this, DELETE and UPDATE are not allowed to actually overwrite data as ROLLBACK would not work. If you happen to be in the middle of a large DELETE operation, you cannot be sure whether you will be able to COMMIT or not. In addition to this, data is still visible while you perform DELETE, and sometimes data is even visible once your modification has long since finished.

Consequently, this means that cleanup has to happen asynchronously. A transaction cannot clean up its own mess and COMMIT/ROLLBACK might be too early to take care of dead rows...

Summary

In this chapter, you learned transactions, locking and its logical implications, and the general architecture the PostgreSQL transaction machinery can have for storage, concurrency, and administration. You saw how rows are locked and which features are available in PostgreSQL.

In Chapter 3, Making use of Indexes, you will learn one of the most important topics in database work: indexing. You will learn about the PostgreSQL query optimizer as well as various types of indexes and their behavior.

Left arrow icon

Page 1 of 9

Right arrow icon
Download code icon Download Code

Key benefits

  • Your one-stop guide to mastering advanced concepts in PostgreSQL 10 with ease
  • Master query optimization, replication, and high availability with PostgreSQL
  • Extend the functionalities of your PostgreSQL instance to suit your organizational needs with minimal effort

Description

PostgreSQL is an open source database used for handling large datasets (big data) and as a JSON document database. This book highlights the newly introduced features in PostgreSQL 10, and shows you how you can build better PostgreSQL applications, and administer your PostgreSQL database more efficiently. We begin by explaining advanced database design concepts in PostgreSQL 10, along with indexing and query optimization. You will also see how to work with event triggers and perform concurrent transactions and table partitioning, along with exploring SQL and server tuning. We will walk you through implementing advanced administrative tasks such as server maintenance and monitoring, replication, recovery, high availability, and much more. You will understand common and not-so-common troubleshooting problems and how you can overcome them. By the end of this book, you will have an expert-level command of advanced database functionalities and will be able to implement advanced administrative tasks with PostgreSQL 10.

Who is this book for?

If you are a PostgreSQL data architect or an administrator and want to understand how to implement advanced functionalities and master complex administrative tasks with PostgreSQL 10, then this book is perfect for you. Prior experience of administrating a PostgreSQL database and a working knowledge of SQL are required to make the best use of this book.

What you will learn

  • Get to grips with the advanced features of PostgreSQL 10 and handle advanced SQL
  • Make use of the indexing features in PostgreSQL and fine-tune the performance of your queries
  • Work with stored procedures and manage backup and recovery
  • Master replication and failover techniques
  • Troubleshoot your PostgreSQL instance for solutions to common and not-so-common problems
  • Learn how to migrate your database from MySQL and Oracle to PostgreSQL without any hassle
Estimated delivery fee Deliver to Ukraine

Economy delivery 10 - 13 business days

$6.95

Premium delivery 6 - 9 business days

$21.95
(Includes tracking information)

Product Details

Country selected
Publication date, Length, Edition, Language, ISBN-13
Publication date : Jan 31, 2018
Length: 428 pages
Edition : 1st
Language : English
ISBN-13 : 9781788472296
Category :
Data
Languages :
C
Concepts :
Database Administration
Tools :
PostgreSQL

What do you get with Print?

Product feature icon Instant access to your digital eBook copy whilst your Print order is Shipped
Product feature icon Paperback book shipped to your preferred address
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Estimated delivery fee Deliver to Ukraine

Economy delivery 10 - 13 business days

$6.95

Premium delivery 6 - 9 business days

$21.95
(Includes tracking information)

Product Details

Publication date : Jan 31, 2018
Length: 428 pages
Edition : 1st
Language : English
ISBN-13 : 9781788472296
Category :
Data
Languages :
C
Concepts :
Database Administration
Tools :
PostgreSQL

Packt Subscriptions

See our plans and pricing
Modal Close icon
$19.99 billed monthly
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Simple pricing, no contract
START FREE TRIAL
BUY NOW
$199.99 billed annually
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just $5 each
Feature tick icon Exclusive print discounts
START FREE TRIAL
BUY NOW
$279.99 billed in 18 months
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just $5 each
Feature tick icon Exclusive print discounts
START FREE TRIAL
BUY NOW

Frequently bought together

PostgreSQL 10 Administration Cookbook
PostgreSQL 10 Administration Cookbook
Read more
May 2018 576 pages
eBook
eBook
  • eBook eBook $29.99
  • Paperback Paperback $54.99
$29.99 $43.99
$54.99
Learning PostgreSQL 10
Learning PostgreSQL 10
Read more
Dec 2017 488 pages
Full star icon 2.3 (6)
eBook
eBook
  • eBook eBook $20.98
  • Paperback Paperback $38.99
$20.98 $29.99
$38.99
Mastering PostgreSQL 10
Mastering PostgreSQL 10
Read more
Jan 2018 428 pages
Full star icon 1 (1)
eBook
eBook
  • eBook eBook $24.99
  • Paperback Paperback $43.99
$24.99 $35.99
$43.99
Stars icon
Total $ 137.97
PostgreSQL 10 Administration Cookbook
$54.99
Learning PostgreSQL 10
$38.99
Mastering PostgreSQL 10
$43.99
Total $ 137.97 Stars icon

Table of Contents

14 Chapters
PostgreSQL Overview Chevron down icon Chevron up icon
PostgreSQL Overview
What is new in PostgreSQL 10.0?
Introducing SCRAM-SHA-256
Introducing quorum COMMIT
Introducing ICU encodings
Summary
Understanding Transactions and Locking Chevron down icon Chevron up icon
Understanding Transactions and Locking
Working with PostgreSQL transactions
Understanding basic locking
Making use of FOR SHARE and FOR UPDATE
Understanding transaction isolation levels
Observing deadlocks and similar issues
Utilizing advisory locks
Optimizing storage and managing cleanup
Summary
Making Use of Indexes Chevron down icon Chevron up icon
Making Use of Indexes
Understanding simple queries and the cost model
Improving speed using clustered tables
Understanding additional b-tree features
Introducing operator classes
Understanding PostgreSQL index types
Achieving better answers with fuzzy searching
Understanding full-text search - FTS
Summary
Handling Advanced SQL Chevron down icon Chevron up icon
Handling Advanced SQL
Introducing grouping sets
Making use of ordered sets
Understanding hypothetical aggregates
Utilizing windowing functions and analytics
Writing your own aggregates
Summary
Log Files and System Statistics Chevron down icon Chevron up icon
Log Files and System Statistics
Gathering runtime statistics
Creating log files
Summary
Optimizing Queries for Good Performance Chevron down icon Chevron up icon
Optimizing Queries for Good Performance
Learning what the optimizer does
Understanding execution plans
Understanding and fixing joins
Enabling and disabling optimizer settings
Partitioning data
Adjusting parameters for good query performance
Summary
Writing Stored Procedures Chevron down icon Chevron up icon
Writing Stored Procedures
Understanding stored procedure languages
Understanding various stored procedure languages
Improving stored procedure performance
Using stored procedures
Summary
Managing PostgreSQL Security Chevron down icon Chevron up icon
Managing PostgreSQL Security
Managing network security
Digging into row-level security - RLS
Inspecting permissions
Reassigning objects and dropping users
Summary
Handling Backup and Recovery Chevron down icon Chevron up icon
Handling Backup and Recovery
Performing simple dumps
Handling various formats
Replaying backups
Handling global data
Summary
Making Sense of Backups and Replication Chevron down icon Chevron up icon
Making Sense of Backups and Replication
Understanding the transaction log
Transaction log archiving and recovery
Setting up asynchronous replication
Upgrading to synchronous replication
Making use of replication slots
Making use of CREATE PUBLICATION and CREATE SUBSCRIPTION
Summary
Deciding on Useful Extensions Chevron down icon Chevron up icon
Deciding on Useful Extensions
Understanding how extensions work
Making use of contrib modules
Other useful extensions
Summary
Troubleshooting PostgreSQL Chevron down icon Chevron up icon
Troubleshooting PostgreSQL
Approaching an unknown database
Inspecting pg_stat_activity
Checking for slow queries
Inspecting the log
Checking for missing indexes
Checking for memory and I/O
Understanding noteworthy error scenarios
Summary
Migrating to PostgreSQL Chevron down icon Chevron up icon
Migrating to PostgreSQL
Migrating SQL statements to PostgreSQL
Moving from Oracle to PostgreSQL
Moving from MySQL or MariaDB to PostgreSQL
Summary
Other Books You May Enjoy Chevron down icon Chevron up icon
Other Books You May Enjoy
Leave a review - let other readers know what you think

Recommendations for you

Left arrow icon
Python Machine Learning By Example
Python Machine Learning By Example
Read more
Jul 2024 518 pages
Full star icon 4.9 (8)
eBook
eBook
  • eBook eBook $24.99
  • Paperback Paperback $45.99
$24.99 $36.99
$45.99
Building AI Applications with OpenAI APIs
Building AI Applications with OpenAI APIs
Read more
Oct 2024 252 pages
eBook
eBook
  • eBook eBook $21.99
  • Paperback Paperback $39.99
$21.99 $31.99
$39.99
Unlocking Data with Generative AI and RAG
Unlocking Data with Generative AI and RAG
Read more
Sep 2024 346 pages
eBook
eBook
  • eBook eBook $21.99
  • Paperback Paperback $39.99
$21.99 $31.99
$39.99
Building LLM Powered Applications
Building LLM Powered Applications
Read more
May 2024 342 pages
Full star icon 4.2 (22)
eBook
eBook
  • eBook eBook $27.98
  • Paperback Paperback $49.99
$27.98 $39.99
$49.99
RAG-Driven Generative AI
RAG-Driven Generative AI
Read more
Sep 2024 334 pages
Full star icon 4.5 (13)
eBook
eBook
  • eBook eBook $24.99
  • Paperback Paperback $43.99
$24.99 $35.99
$43.99
Machine Learning with PyTorch and Scikit-Learn
Machine Learning with PyTorch and Scikit-Learn
Read more
Feb 2022 774 pages
Full star icon 4.4 (95)
eBook
eBook
  • eBook eBook $29.99
  • Paperback Paperback $54.99
$29.99 $43.99
$54.99
Python for Algorithmic Trading Cookbook
Python for Algorithmic Trading Cookbook
Read more
Aug 2024 404 pages
Full star icon 4.6 (15)
eBook
eBook
  • eBook eBook $32.99
  • Paperback Paperback $47.98
$32.99 $47.99
$47.98 $59.99
Microsoft Power BI - The Complete Masterclass [2023 EDITION]
Microsoft Power BI - The Complete Masterclass [2023 EDITION]
Read more
Jan 2023 14hrs 31mins
Video
Video
  • Video Video $109.99
$109.99
Principles of Data Science
Principles of Data Science
Read more
Jan 2024 326 pages
Full star icon 4.8 (4)
eBook
eBook
  • eBook eBook $21.99
  • Paperback Paperback $39.99
$21.99 $31.99
$39.99
Mastering NLP from Foundations to LLMs
Mastering NLP from Foundations to LLMs
Read more
Apr 2024 340 pages
Full star icon 4.9 (24)
eBook
eBook
  • eBook eBook $29.99
  • Paperback Paperback $52.99
$29.99 $42.99
$52.99
Right arrow icon

Customer reviews

Rating distribution
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
(1 Ratings)
5 star 0%
4 star 0%
3 star 0%
2 star 0%
1 star 100%
vishal khanna Jun 20, 2018
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
Cons1. Content in book is not complete.2. I don't feel confidence on any topic covered in the book.3. Over pricedPros1. Index is good enough to impress reader to buy this book.
Amazon Verified review Amazon

People who bought this also bought

Left arrow icon
Machine Learning Engineering with Python
Machine Learning Engineering with Python
Read more
Aug 2023 462 pages
Full star icon 4.6 (36)
eBook
eBook
  • eBook eBook $27.98
  • Paperback Paperback $49.99
$27.98 $39.99
$49.99
Deep Learning with TensorFlow and Keras – 3rd edition
Deep Learning with TensorFlow and Keras – 3rd edition
Read more
Oct 2022 698 pages
Full star icon 4.6 (45)
eBook
eBook
  • eBook eBook $27.98
  • Paperback Paperback $49.99
$27.98 $39.99
$49.99
Modern Generative AI with ChatGPT and OpenAI Models
Modern Generative AI with ChatGPT and OpenAI Models
Read more
May 2023 286 pages
Full star icon 4.2 (34)
eBook
eBook
  • eBook eBook $27.98
  • Paperback Paperback $49.99
$27.98 $39.99
$49.99
Generative AI with LangChain
Generative AI with LangChain
Read more
Dec 2023 368 pages
Full star icon 4 (34)
eBook
eBook
  • eBook eBook $27.98
  • Paperback Paperback $49.99
$27.98 $39.99
$49.99
Causal Inference and Discovery in Python
Causal Inference and Discovery in Python
Read more
May 2023 456 pages
Full star icon 4.5 (49)
eBook
eBook
  • eBook eBook $21.99
  • Paperback Paperback $39.99
$21.99 $31.99
$39.99
Right arrow icon
Get free access to Packt library with over 7500+ books and video courses for 7 days!
Start Free Trial

FAQs

What is the delivery time and cost of print book? Chevron down icon Chevron up icon

Shipping Details

USA:

'

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

  1. Afghanistan
  2. American Samoa
  3. Belarus
  4. Brunei Darussalam
  5. Central African Republic
  6. The Democratic Republic of Congo
  7. Eritrea
  8. Guinea-bissau
  9. Iran
  10. Lebanon
  11. Libiya Arab Jamahriya
  12. Somalia
  13. Sudan
  14. Russian Federation
  15. Syrian Arab Republic
  16. Ukraine
  17. Venezuela
What is custom duty/charge? Chevron down icon Chevron up icon

Customs duty are charges levied on goods when they cross international borders. It is a tax that is imposed on imported goods. These duties are charged by special authorities and bodies created by local governments and are meant to protect local industries, economies, and businesses.

Do I have to pay customs charges for the print book order? Chevron down icon Chevron up icon

The orders shipped to the countries that are listed under EU27 will not bear custom charges. They are paid by Packt as part of the order.

List of EU27 countries: www.gov.uk/eu-eea:

A custom duty or localized taxes may be applicable on the shipment and would be charged by the recipient country outside of the EU27 which should be paid by the customer and these duties are not included in the shipping charges been charged on the order.

How do I know my custom duty charges? Chevron down icon Chevron up icon

The amount of duty payable varies greatly depending on the imported goods, the country of origin and several other factors like the total invoice amount or dimensions like weight, and other such criteria applicable in your country.

For example:

  • If you live in Mexico, and the declared value of your ordered items is over $ 50, for you to receive a package, you will have to pay additional import tax of 19% which will be $ 9.50 to the courier service.
  • Whereas if you live in Turkey, and the declared value of your ordered items is over € 22, for you to receive a package, you will have to pay additional import tax of 18% which will be € 3.96 to the courier service.
How can I cancel my order? Chevron down icon Chevron up icon

Cancellation Policy for Published Printed Books:

You can cancel any order within 1 hour of placing the order. Simply contact customercare@packt.com with your order details or payment transaction id. If your order has already started the shipment process, we will do our best to stop it. However, if it is already on the way to you then when you receive it, you can contact us at customercare@packt.com using the returns and refund process.

Please understand that Packt Publishing cannot provide refunds or cancel any order except for the cases described in our Return Policy (i.e. Packt Publishing agrees to replace your printed book because it arrives damaged or material defect in book), Packt Publishing will not accept returns.

What is your returns and refunds policy? Chevron down icon Chevron up icon

Return Policy:

We want you to be happy with your purchase from Packtpub.com. We will not hassle you with returning print books to us. If the print book you receive from us is incorrect, damaged, doesn't work or is unacceptably late, please contact Customer Relations Team on customercare@packt.com with the order number and issue details as explained below:

  1. If you ordered (eBook, Video or Print Book) incorrectly or accidentally, please contact Customer Relations Team on customercare@packt.com within one hour of placing the order and we will replace/refund you the item cost.
  2. Sadly, if your eBook or Video file is faulty or a fault occurs during the eBook or Video being made available to you, i.e. during download then you should contact Customer Relations Team within 14 days of purchase on customercare@packt.com who will be able to resolve this issue for you.
  3. You will have a choice of replacement or refund of the problem items.(damaged, defective or incorrect)
  4. Once Customer Care Team confirms that you will be refunded, you should receive the refund within 10 to 12 working days.
  5. If you are only requesting a refund of one book from a multiple order, then we will refund you the appropriate single item.
  6. Where the items were shipped under a free shipping offer, there will be no shipping costs to refund.

On the off chance your printed book arrives damaged, with book material defect, contact our Customer Relation Team on customercare@packt.com within 14 days of receipt of the book with appropriate evidence of damage and we will work with you to secure a replacement copy, if necessary. Please note that each printed book you order from us is individually made by Packt's professional book-printing partner which is on a print-on-demand basis.

What tax is charged? Chevron down icon Chevron up icon

Currently, no tax is charged on the purchase of any print book (subject to change based on the laws and regulations). A localized VAT fee is charged only to our European and UK customers on eBooks, Video and subscriptions that they buy. GST is charged to Indian customers for eBooks and video purchases.

What payment methods can I use? Chevron down icon Chevron up icon

You can pay with the following card types:

  1. Visa Debit
  2. Visa Credit
  3. MasterCard
  4. PayPal
What is the delivery time and cost of print books? Chevron down icon Chevron up icon

Shipping Details

USA:

'

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

  1. Afghanistan
  2. American Samoa
  3. Belarus
  4. Brunei Darussalam
  5. Central African Republic
  6. The Democratic Republic of Congo
  7. Eritrea
  8. Guinea-bissau
  9. Iran
  10. Lebanon
  11. Libiya Arab Jamahriya
  12. Somalia
  13. Sudan
  14. Russian Federation
  15. Syrian Arab Republic
  16. Ukraine
  17. Venezuela