MCAFIH_SYSTEM is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Comm. structure: Order - tmestamp system" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_MCAFIH_SYSTEM TYPE MCAFIH_SYSTEM.
The MCAFIH_SYSTEM table consists of various fields, each holding specific information or linking keys about Comm. structure: Order - tmestamp system data available in SAP. These include ERDAT (Date on Which Record Was Created), ERFZEIT (Time, at Which Record Was Added), AENAM (Name of Person Who Changed Object), AEDAT (Changed On)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .