January 2019
Beginner
556 pages
14h 19m
English
Content preview from Learning PostgreSQL 11 - Third Edition
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Summary
OLAP and data warehousing are both used in the context of specific database-design patterns, where a database is used for analysis and reporting. In contrast to OLTP, OLAP deals with bigger amounts of data and a smaller number of concurrent sessions and transactions, but the amount of changes within a transaction usually is bigger. The database structure is often denormalized to improve query performance. A database that is a part of an OLAP solution is often called a data warehouse.
In this chapter, we discussed structuring data in a data warehouse, how to load data there, and how to optimize the database performance by applying partitioning, and using parallel query execution and index-only scans.
In the next chapter, we will discuss ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.