Database tables and Pega Platform metadata

Every persistent object in the Pega Platform database has an associated class ( Rule-Obj-Class rule type). The Pega Platform uses a simple algorithm and information in Data-Admin-DB-Table instances to determine which table contains objects of which classes.

When in memory and on the clipboard, objects are known as instances and have an XML-like structure consisting of property names and text property values. These can be reviewed with the Clipboard tool.

When saved into the database, objects become rows of a table, with columns corresponding to scalar properties.