You can expand the basic one-table dataset by creating joins with other relevant tables from same or other data stores. Combining data across multiple tables enhances the richness of the dataset considerably; it enables you to conduct much more meaningful research and produce insightful visual analytics.
There are two distinct approaches for creating data joins for the purpose of visualization.
cerealsand an external table
For step-by-step instructions on how to create and manage joins, read the following articles: