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 ...

Eventually when you need to combine multiple tables in order to fetch the data, reducing database calls becomes very meaningful. Although in CakePhp's model, by default if the association between ...

An interesting Power Query nugget for you: you can compare two tables using the Value.Equals() function. For example, take the following worksheet with five Excel tables on it: The following Power ...

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 ...