How to Get All Possible Combinations of Rows From Two Tables in SQL

To get all possible combinations of rows from two tables in SWL, use the JOIN clause. This clause allows you to combine data from two or more tables by matching values in specified columns. For example, if you wanted to get all possible combinations of rows from two tables, table1 and table2, you would use the following query:

SELECT * FROM table1 JOIN table2 ON table1.column1 = table2.column2;

Examples

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

If you wanted to get all possible combinations of rows from these two tables, you would use the following query:

SELECT * FROM users JOIN orders ON users.name = orders.user_name;

This query would return the following result:

Additional Info

The JOIN clause is supported by most major databases, including MySQL, PostgreSQL, and SQL Server.

However, the syntax may vary slightly depending on the database you're using. For more guidance, check out the documentation for your particular database. 🤓