January 2019
Beginner
556 pages
14h 19m
English
Content preview from Learning PostgreSQL 11 - Third Edition
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Optimizing Database Performance
There are several aspects of optimizing database performance, such as hardware configuration, network settings, database configuration, rewriting SQL queries, and maintaining indexes. In this chapter, we'll focus only on basic configuration and rewriting queries.
Generally speaking, tuning database performance requires knowledge about the system's nature; for example, we need to know whether the database system can be used for online analytical processing (OLAP) or online transactional processing (OLTP). The database system may be IO- or CPU-bound; these define the whole database cluster setup, such as the number of CPUs, CPU power, RAID configuration, amount of RAM, and the database cluster's configuration. ...
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