SQL Built-in Functions
Quick Answer
SQL built-in functions are predefined operations that perform calculations or transformations on data within queries. They include string manipulation, numeric calculations, date/time processing, and aggregate functions, enabling efficient data retrieval and analysis without writing complex code.
Learning Objectives
- Understand the purpose and types of SQL built-in functions.
- Learn how to use string, numeric, date/time, and aggregate functions in SQL queries.
- Apply built-in functions to manipulate and analyze data efficiently.
Introduction
SQL built-in functions are essential tools that allow you to perform operations on data directly within your queries.
They help you manipulate strings, perform calculations, work with dates, and aggregate data without writing complex code.
Functions are the building blocks of efficient SQL queries.





