A SQL JOIN clause combines rows from tables, based on a field shared between them (often a joining or ID field). There are four types of JOINs: INNER JOIN: Show rows when there’s a match in BOTH tables LEFT JOIN: Show rows in the left table with the rows that match up from the right table RIGHT JOIN: Show rows in the right table with rows that match up in the left table FULL JOIN: Show rows with a match in at least one table In this article, we’ll use the same “Customers” table from our first articles: ID Site Contact Address City Zip Country 1 Krypted Charles Edge my house…