Learn the pros and cons of subqueries and joins in SQL, and how to decide when to use them in your database development projects. Sign in to view more content ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

If you use the SQL command line to mine the records in your tables, you’ll discover that a JOIN may be the best tool for finding the information you need. This week, I’ll explain the basic ...