The SQL COUNT () Function The COUNT() function returns the number of rows that matches a specified criterion.

Nov 22, 2025 · We can use the COUNT () function along with CASE WHEN to count rows that match a specific condition. This is helpful when we want to count rows based on certain criteria without …

Nov 18, 2025 · COUNT(*) doesn't require an expression parameter because by definition, it doesn't use information about any particular column. COUNT(*) returns the number of rows in a specified table, …

In this tutorial, you will learn about the SQL COUNT () function with the help of examples.

Jan 14, 2025 · It is commonly used to determine the number of entries in a table, count distinct values, or count rows after filtering data. It sets the number of rows or non NULL column values. COUNT () …

Jun 28, 2023 · When working with SQL databases, the ability to count rows is crucial for data analysis and optimization. The COUNT() function is a powerful tool that enables users to quickly retrieve the …

In this blog, we’ll explore the COUNT function in depth, covering its syntax, variations, use cases, and practical applications with clear examples. By the end, you’ll be using COUNT confidently to analyze …

Let's look at an example that shows how to use the COUNT function with a single expression in a query. In this example, we have a table called employees with the following data:

Jul 23, 2025 · SQL provides two primary ways to achieve this. Let’s examine both methods in detail. Using the WHERE clause with COUNT(). Using the CASE statement within COUNT(). 1. Using …

In a typical SELECT statement, COUNT pairs with a table in the FROM clause and optional filters in WHERE. COUNT(*): Counts all rows, regardless of null values. COUNT(column_name): Counts only …