RIADM 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 "IO fields of function group IADM (PM: management data)" 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_RIADM TYPE RIADM.
The RIADM table consists of various fields, each holding specific information or linking keys about IO fields of function group IADM (PM: management data) data available in SAP. These include ERUHR (Time at which the object was created), ERNAM (Name of User Who Created the Object), AEDAT (Date on which the object was last changed), AEUHR (Time at which the object was changed)... 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. .