FVD_BO_SAVE 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 "BO: Save Informtaion for Business Operations" 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_FVD_BO_SAVE TYPE FVD_BO_SAVE.
The FVD_BO_SAVE table consists of various fields, each holding specific information or linking keys about BO: Save Informtaion for Business Operations data available in SAP. These include DBUDAT (Posting Date in the Document), XBKTXT (Text length 25), SPROTOCOL (Print log), PPERIOD (Fiscal Period)... 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. .