I am trying to learn the relationships and links between the various SAP database tables (SAP FI-AA, SAP SD, SAP MM, SAP HR and so on) for correctly extracting data from them. Especially I am expressing an interest in the SAP database tables on SAP FI-AA, SAP SD, SAP MM, SAP HR. Could somebody provide me with documentations about the relationships and links between them. I will be very grateful if somebody can provide me with links.
Thanks and regards