FMBGALV2 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 "GLV Structure for the Adjustment Document Report" 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_FMBGALV2 TYPE FMBGALV2.
The FMBGALV2 table consists of various fields, each holding specific information or linking keys about GLV Structure for the Adjustment Document Report data available in SAP. These include GJAHR (Fiscal Year), BELNR (Accounting Document Number), BLDAT (Document Date in Document), BUDAT (Posting Date in the Document)... 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. .