4. Aggregate Functions for Data Analysis
By the end of this chapter, you will be able to:
- Explain the conceptual logic of aggregation
- Identify the common SQL aggregate functions
- Use the GROUP BY clause to aggregate and combine groups of data for analysis
- Use the HAVING clause to filter aggregates
- Use aggregate functions to clean data and examine data quality
In this chapter, we will cover SQL's aggregate functions, which are powerful functions for summarizing data.