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

The SQL COUNT function is an aggregate function that returns the number of rows returned by a query. For example, you can use the COUNT function in the SELECT statement to get the number of …

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 …

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 () …

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

Nov 18, 2025 · COUNT(*) returns the number of rows in a specified table, and it preserves duplicate rows. It counts each row separately. This includes rows that contain null values. The …

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:

The COUNT () function returns the number of rows that match a query. It’s one of the most frequently used aggregate functions in SQL, and it plays a vital role in reporting, data summaries, and analytics.

In conclusion, the SQL COUNT function is a powerful tool for counting rows or non-null values in a table or for counting rows that meet specific conditions. It is an essential function for data analysis and …

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 …