Understand How JOINs Work in SQL - An Illustrated Guide
The article on Data School explains different types of SQL joins, which are essential for effective data management in databases. SQL, or Structured Query Language, is the standard for managing data in relational systems. Joins allow for combining data from two or more tables, facilitating more comprehensive queries and analysis. The article discusses several types of joins, including INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN. Each type of join has its specific applications depending on the data requirements and format. For instance, INNER JOIN returns only those records that have matches in both tables, while LEFT JOIN returns all records from the left table along with matching records from the right table.