Книга PostgreSQL Query Optimization. 1st Ed. Henrietta Dombrovskaya, Boris Novikov, Anna Bailliekova (english)

Книга PostgreSQL Query Optimization. 1st Ed. Henrietta Dombrovskaya, Boris Novikov, Anna Bailliekova (english)

Цена: 1700 грн.

Автор: Henrietta Dombrovskaya, Boris Novikov, Anna Bailliekova
Издательство: Apress
Язык: Английский
Год издания: 2021
Формат: 254 х 178 х 18 мм
Количество страниц: 319

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Артикул: 9781484268841 Категории: , Product ID: 59804

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.

You will:

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

Вес 0.66 kg
Габариты 254 × 178 × 18 mm
Автор

Anna Bailliekova, Boris Novikov, Henrietta Dombrovskaya

Видавництво

Apress

Мова

Рік видання

2021

Кількість сторінок

319

Ілюстрації

Черно-белые

Формат

254 х 178 х 18 мм

Папір

офсетная

ISBN

9781484268841

Штрихкод

9781484268841

Палітурка

мягкий