How to Group by Two Columns in SQL

Grouping by Two Columns in SQL

Have you ever wanted to group data by two columns in your database? If so, you're in luck! SQL has a handy way of grouping data by two columns that can help you get the answer you need.

The Solution

The solution is to use the GROUP BY clause. This clause takes two arguments, which are the two columns you want to group by. For example, if you wanted to group data by the name and age columns of your database, you would use the following query:

SELECT * FROM table_name GROUP BY name, age;

Examples

Let's look at a few examples of how this clause can be used. Suppose you have a table called users with the following data:

name      age
----------------
John      25
Jane      30
John      25
Bob       20

If you wanted to group the data by the name and age columns, you would use the following query:

SELECT * FROM users GROUP BY name, age;

This query would return the following result:

name      age
----------------
John      25
Jane      30
Bob       20

Additional Info

The GROUP BY clause is supported by most major databases, including MySQL, PostgreSQL, and SQL Server. However, the syntax may vary slightly depending on the database you are using. For more information, check out the documentation for your particular database. 🤓