GRPG_COSBA_SUM 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 "Grouping/Pegging: Variances/Results Analyses summary" 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_GRPG_COSBA_SUM TYPE GRPG_COSBA_SUM.
The GRPG_COSBA_SUM table consists of various fields, each holding specific information or linking keys about Grouping/Pegging: Variances/Results Analyses summary data available in SAP. These include OBJNR (Object number), GJAHR (Fiscal Year), WRTTP (Value Type), VERSN (Version)... 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. .