Transparent Tables

SAP uses another concept called transparent tables, which are SAP database tables that contain only data at runtime. When a table is activated in the ABAP/4 Data Dictionary, a transparent table is created automatically in the database. This transparent table encloses the same name as your database table contained in the ABAP/4 Dictionary. Each of its fields contains the same names as their database counterparts though the sequence of the fields might get varied. This unstable field sequence makes it possible to insert new fields into the table without having to convert it, all of which pays a way for more rapid access to data during runtime.