You can ignore duplicates by using the DISTINCT keyword in the COUNT() function. If DISTINCT is specified, rows with the same value for the specified column will be counted as one.

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 …

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

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 …

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 …

Jan 14, 2025 · COUNT () returns 0 if there were no matching rows. Syntax: The above syntax is the general SQL 2003 ANSI standard syntax. This helps to understand the way SQL COUNT …

It is used to return the number of rows or non-null values in a column. The COUNT function syntax is as follows: In this syntax, column_name specifies the name of the column for which …

The COUNT () function is an aggregate function that is used to find the number of values in the specified column excluding NULL values. It can be applied on numeric, character, or date …

What is the SQL Server COUNT Function? The SQL Server COUNT function is used to return the number of items in a group. It’s typically employed in SELECT queries to tally rows, non-NULL …

Mar 16, 2023 · To count unique (non-duplicate) values in a certain column, you put the DISTINCT keyword inside COUNT(), followed by the name of the column. With this syntax, the function …