January 2019
Beginner
556 pages
14h 19m
English
Content preview from Learning PostgreSQL 11 - Third Edition
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Functions
A PostgreSQL function is used to provide a distinct service, and it is often composed of a set of declarations, expressions, and statements. PostgreSQL has very rich built-in functions for almost all existing data types. In this chapter, we will focus on user-defined functions. However, more details about the syntax and function parameters will be covered in later chapters.
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