April 2026
Intermediate to advanced
580 pages
14h 12m
English
Content preview from AI-Ready PostgreSQL 18
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5
Transactions, ACID Compliance, and Data Normalization
This chapter explores PostgreSQL's support for transactional, ACID-compliant applications that use a normalized data model. We will begin with a detailed look at ACID compliance and its importance, then examine one of its main components: transactional isolation and the different isolation levels supported in PostgreSQL. A separate section helps the developer understand the notion of implicit and explicit transactions, savepoints, rollbacks, and other transactional capabilities.
The chapter concludes with a discussion on data normalization, its importance for high-volume transactional applications, and how to model facts that change over time using slowly changing dimensions.
This chapter ...
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