PROC SQL allows you to specify the ORDER BY clause in the CREATE VIEW statement. Every time a view is accessed ... especially if the view's underlying tables are large. It is more efficient to omit ...

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 your business uses relational databases to store data, it helps to use the SQL ... a new table from the results of two separate queries with the UNION keyword. Build a SELECT statement similar ...

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 ...