Apr 5, 2019 · You can use the DISTINCT keyword within the COUNT aggregate function: SELECT COUNT(DISTINCT column_name) AS some_alias FROM table_name This will count …

Feb 7, 2025 · In SQL, the COUNT () function is used to count the number of rows that match a specified condition. The DISTINCT keyword is used to return only distinct (unique) values. …

By using the DISTINCT keyword in a function called COUNT, we can return the number of different countries. Note: The COUNT (DISTINCT column_name) is not supported in Microsoft …

Jun 28, 2023 · To count distinct values across multiple columns, combine the COUNT DISTINCT function with the CONCAT function in your SQL query. Use a separator, such as an …

Nov 22, 2022 · However, it can be modified by using the DISTINCT keyword to return a value that coincides with the number of unique values in the column in question. This tutorial shows …

Jul 18, 2024 · Counting unique values in a SQL column is straightforward with the DISTINCT keyword. Here, let’s see how to effectively count distinct entries and apply filters for more …

To count the number of different values that are stored in a given column, you simply need to designate the column you pass in to the COUNT function as DISTINCT.

In this tutorial, you will learn how to use the SQL Server COUNT DISTINCT to get the total number of unique values in a column of a table.

Here’s the basic syntax for using the COUNT DISTINCT function: FROM table_name; Code language: SQL (Structured Query Language) (sql) In this syntax: COUNT DISTINCT: The …

Aug 16, 2023 · Need to count distinct values in SQL? Learn how to do that using the COUNT function in this article, and a common mistake to avoid.