where to find logical and/or technical data model?
I am new to SAP and trying to figure out where I can best find information on the logical/technical datamodel, including entity/table and field definitions. I also am looking forminfo on primary keys, foreign keys, relationships between entities/tables, data model overviews/graphs. What places should I go to get this information?
So I am NOT looking for a specific table, I would like to get a general overview of the logical/technical data structure.