Most databases have multiple tables of data that are related in some way. Additionally, with Tableau 10 and later, you are able to join together tables of data across various data connections for many different data sources. As we'll see, Tableau makes it very easy to join together tables of data relatively easy.
Consider, for example, tables such as these:
The primary table is the Hospital Visit table, which has a record for every visit of a patient to the hospital and includes details such as admission type (examples include inpatient, outpatient, and ER). It also contains key fields that link a visit to a Primary Physician ...
