GRAC_S_DEFAULT_ROLE_SYS 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 "Default Role - Role and 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_GRAC_S_DEFAULT_ROLE_SYS TYPE GRAC_S_DEFAULT_ROLE_SYS.
The GRAC_S_DEFAULT_ROLE_SYS table consists of various fields, each holding specific information or linking keys about Default Role - Role and System data available in SAP. These include CONNECTOR (Connector Id), CONN_DESCN (Connector Description), ROLE_NAME (Role Name), DESCN (Description)... 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. .