PostgreSQL Query Optimization:The Ultimate Guide to Building Efficient Queries


PostgreSQL Query Optimization:The Ultimate Guide to Building Efficient Queries
by:Henrietta Dombrovskaya , Boris Novikov (Contributor), Anna Bailliekova (Contributor)
Publisher Finelybook 出版社:Apress; 1st ed. edition (April 23, 2021)
Language 语言:English
pages 页数:344 pages
ISBN-10 书号:1484268849
ISBN-13 书号:9781484268841

Book Description
Write optimized queries. This book helps you write queries that perform fast and deliver results on time. You will learn that query optimization is not a dark art practiced by:a small, secretive cabal of sorcerers. Any motivated professional can learn to write efficient queries from the get-go and capably optimize existing queries. You will learn to look at the process of writing a query from the database engine’s point of view, and know how to think like the database optimizer.

The book begins with a discussion of what a performant system is and progresses to measuring performance and setting performance goals. It introduces different classes of queries and optimization techniques suitable to each, such as the use of indexes and specific join algorithms. You will learn to read and understand query execution plans along with techniques for influencing those plans for better performance. The book also covers advanced topics such as the use of functions and procedures, dynamic SQL, and generated queries. All of these techniques are then used together to produce performant applications, avoiding the pitfalls of object-relational mappers.

What You Will Learn

Identify optimization goals in OLTP and OLAP systems
Read and understand PostgreSQL execution plans
Distinguish between short queries and long queries
Choose the right optimization technique for each query type
Identify indexes that will improve query performance
Optimize full table scans
Avoid the pitfalls of object-relational mapping systems
Optimize the entire application rather than just database queries

下载地址:应版权方要求,违规内容链接已处理或移除!
你可以 登录 后获取帮助.

赞(4) 觉得文章有用就打赏一下
未经允许不得转载:finelybook » PostgreSQL Query Optimization:The Ultimate Guide to Building Efficient Queries

觉得文章有用就打赏一下

支付宝扫一扫打赏

微信扫一扫打赏