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Selection Portals

We've covered the basics of portals thus far, and discussed the idea that portals are used to display records from a related table and that the records themselves, well, “relate” in a meaningful way. In other words, the related records shown in a portal correspond to the active record—Parents to their own children, Class to its attending students, Company to its own employees, Neighborhoods to houses and so on.

These relationships are often thought of as “primary.” They're the relationships that you depend on to define and determine a database's core architecture. Your users, likewise, will intuitively understand the process of entering data for, say, a class and then fleshing out its roster of students. There's a direct correlation between a primary data structure and the information that users expect to view, enter, and report on.


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