Here we use the COUNT() function and the GROUP BY clause, to return the number of records for each category in the Products table: You will learn more about the GROUP BY clause later in this tutorial.

Another form of the COUNT function that accepts an asterisk (*) as the argument is as follows: The COUNT(*) function returns the number of rows in a table in a query. It counts duplicate rows and …

Jul 23, 2025 · When we want to count all the rows in a table, regardless of the column values, we can use COUNT (*). It counts every row, including rows with NULL values. Query: Output. Explanation: …

Sep 3, 2024 · 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, …

Mar 16, 2023 · The most common way to use COUNT() is to use it with the asterisk (*) as the argument. The asterisk tells the COUNT() function to return the number of rows in the result set. Example 1: …

Jan 14, 2025 · How is the COUNT () function typically applied in SQL queries? The COUNT () function is used in various contexts, including counting total rows in a table, counting non-NULL values in a …

This SQL tutorial explains how to use the SQL COUNT function with syntax, examples, and practice exercises. The SQL COUNT function is used to count the number of rows returned in a SELECT …

In this example, the COUNT (*) function counts the total number of rows in the customers table. You can also use the COUNT function with a specific column to count the number of non-null values in that …

The COUNT () function in SQL is used to get the number of rows with the SELECT statement. In this tutorial, you will learn about the SQL COUNT () function with the help of examples.

Microsoft SQL Server provides various combinations of the COUNT function to deal with NULLs, duplicates (finding the distinct values), conditional counting, etc. For example, when you need to get …