BUMP_S_SCREEN 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 "Screen fields for mass data posting" 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_BUMP_S_SCREEN TYPE BUMP_S_SCREEN.
The BUMP_S_SCREEN table consists of various fields, each holding specific information or linking keys about Screen fields for mass data posting data available in SAP. These include SPERFR (First period), SPERTO (Last Period), SFYEAR (Fiscal Year), SBUDCAT (Budget Category)... 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. .