Chapter 16 Working with Data Portals Data portals provide FileMaker with extremely rapid relational data- base capabilities. They are an essential feature of FileMaker and have been a major selling point of the product for years. Portals are tables within a FileMaker layout containing a list of related records, com- monly from a one-to-many relationship, that can be created, edited, and deleted without any additional scripting for connecting the foreign keys of the two records together. The FileMaker API for the first time allows portal records to be created, edited, and deleted; previously