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

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

If you join two tables that both have missing rows, you can combine the effect of a left and a right join by using a full join. The following figure shows the results of this query.

When multiple tables, views, or query-expressions are listed in the FROM clause, they are processed to form one table. The resulting table contains data from each contributing table. These queries are ...

-- 7. Using the tables payment and customer and the JOIN command, list the total paid by each customer. -- Bonus: Which is the most rented film? The answer is Bucket Brotherhood. This query might ...

The Construction Market Information System provides information about; Employees and their work details, Departments and Employees duties in these departments, Customers and Products purchased by ...

To import a table or view in your database all you have to do is right-click on your data source and choose Import New Tables; my blog post from September last year describes how to do this, and how ...

Notice how the original SQL query I used as the source of the table is used as a subquery in this query. This is how Power BI generates its SQL and this is why there are limitations on the SQL you can ...