The key to each row of the entity table is the unique 32-bit identity number.

The columns of the entity table include class, type, and other product-defined fields.

The class column acts as the primary category for entries in the dictionary. Definition rows include all property fields defined by the SAPROPS.CFG and USRPROPS.TXT files, such as Volume, Edit Clause, and UpdateDate.

Each time a diagram is drawn, a symbol is placed, or a definition is stored, a new row is created in the entity table.