GRRM_OB_S_CHANGED 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 "Change attributes" 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_GRRM_OB_S_CHANGED TYPE GRRM_OB_S_CHANGED.
The GRRM_OB_S_CHANGED table consists of various fields, each holding specific information or linking keys about Change attributes data available in SAP. These include CHANGED_ON (Changed on), CHANGED_ON_TIME (Time)... 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. .