July 2023
Beginner to intermediate
350 pages
9h 39m
English
Content preview from Data Wrangling with SQL
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8
Aggregate Functions
In this chapter, we will explore the topic of data wrangling using aggregate functions in SQL. We will begin delving into the various aggregate functions available in SQL, such as COUNT, SUM, AVG, MIN, and MAX, and show how they can be used to summarize and analyze data. We will also cover advanced aggregate functions such as COUNT DISTINCT. Throughout the chapter, we will provide real-world examples to illustrate the concepts discussed. By the end of this chapter, you will have a solid understanding of how to effectively use aggregate functions in SQL for data-wrangling tasks.
In this chapter, we will cover the following main topics:
- Overview of aggregate functions in SQL
- Advanced aggregate functions
- Using GROUP BY clauses ...
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