Database Diagram
I'm trying to create master Info table that has all his fields additionally to other 3 tables. so, the master info table has many phone number, many encoder numbers and many control room numbers. therefore, I have made them in this way but I'm not sure that what if i need to do the opposite, like put the statin_No in each table? instead of putting each table primary key in the masterInfoTable like, putting Audio_keyNo in MasterInfoTable?
the masterInfo table contains( Station_No, Encoder_make, Encoder_Model, Audio_keyNo, ControlRoom_keyNo, and Encoder_KeyNo) the AudioTable has( Audio_KeyNO, Audio_No) The ControlRoom table and Encoder table have the keyno and control room or encoder no. any thing end with KeyNO is a primary Key.