GRAC_S_UI_REVDATA 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 "Item data in ALV grid for UAR" 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_UI_REVDATA TYPE GRAC_S_UI_REVDATA.
The GRAC_S_UI_REVDATA table consists of various fields, each holding specific information or linking keys about Item data in ALV grid for UAR data available in SAP. These include ITEM_TYPE (Line Item Type), APPLICATION (Application or Connector), TRANSACTION_USAGE (Data Element of Type String), APP_ACTION (UAR line item owner action)... 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. .