Learn how to link tables based on a condition with inner join, left join, right join, and full join in SQL queries.

SQL Joining Tables Tutorial This tutorial is designed to help you understand how to join tables in SQL to retrieve data from multiple related tables. Joining tables is a fundamental aspect of SQL ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

A join combines two or more tables side by side. If you do not specify how to join the tables, you get a Cartesian product. This means that SQL combines each row from the first table with every row ...

So lets say I have 5 databases, all with the same schema, but different data. I want to be able to build reports based on the data in all of those databases. How could I construct a view which ...