In response to previous SQL lessons, TechRepublic members including Michael M. and Jason P. have posted comments requesting a basic explanation of the types of JOINs available in SQL.. If you use ...

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 ...

Analyze database contents using basic, intermediate and advanced SQL statement syntax and usage. Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database ...