DISTINCT with COUNT()

Using the DISTINCT keyword with the COUNT() function allows users to count unique values in a specified column. This can be especially useful when analyzing categorical data or identifying the diversity of entries. The syntax is as follows: SELECT COUNT(DISTINCT column_name) FROM table_name WHERE condition;. For example, to count the number of unique job titles in an organization, you might execute:

sqlCopy codeSELECT COUNT(DISTINCT job_title) FROM employees;

This will return the count of distinct job titles, providing insights into the variety of roles within the company. Understanding the diversity of entries is vital for organizational assessments, ensuring that all roles and positions are appropriately represented.