November 2015
Beginner
464 pages
9h 46m
English
Content preview from Learning PostgreSQLBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 6. Advanced Query Writing
In this chapter, we will discuss some SQL features supported by PostgreSQL, that were not covered in the previous chapters. Some advanced techniques will also be described.
The same sample database as was used in the previous chapters is used in the code examples. It is recommended to recreate the sample database in order to get the same results as shown in the examples.
In this chapter, we are going to cover the following topics:
- Common table expression
- Window functions
- Advanced SQL
- Transaction isolation and Multiversion Concurrency Control
The code examples in this chapter are based on the car portal database described in the previous chapters. The scripts for creating the database and filling it with data (schema.sql ...
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