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Troubleshooting PostgreSQL

You're reading from   Troubleshooting PostgreSQL Intercept problems and challenges typically faced by PostgreSQL database administrators with the best troubleshooting techniques

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Product type Paperback
Published in Mar 2015
Publisher Packt
ISBN-13 9781783555314
Length 164 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (12) Chapters Close

Preface 1. Installing PostgreSQL FREE CHAPTER 2. Creating Data Structures 3. Handling Indexes 4. Reading Data Efficiently and Correctly 5. Getting Transactions and Locking Right 6. Writing Proper Procedures 7. PostgreSQL Monitoring 8. Fixing Backups and Replication 9. Handling Hardware and Software Disasters 10. A Standard Approach to Troubleshooting Index

Chapter 5. Getting Transactions and Locking Right

Transactions are a core technique of every professional relational database system. In fact, it is pretty hard to imagine a world without transactions these days. Atomic deletions, proper locking, and all the functionalities provided by a modern relational system are simple and expected from a modern system, and many applications rely on them. Therefore, this chapter is all about transactions and locking.

The following topics will be covered:

  • The PostgreSQL transaction model
  • Basic locking
  • FOR UPDATE, FOR SHARE, and NOWAIT
  • Locking tables
  • Understanding transaction isolation levels
  • Indexes and foreign keys
  • Transactions and sequences
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