FMRES_SCREEN_PARAM 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 Structure for Installment Parameters" 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_FMRES_SCREEN_PARAM TYPE FMRES_SCREEN_PARAM.
The FMRES_SCREEN_PARAM table consists of various fields, each holding specific information or linking keys about Screen Structure for Installment Parameters data available in SAP. These include INTERVAL_TYPE (Installment Interval Type), INTERVAL_TEXT (Installment Interval Text), FREQUENCY (Frequency at which installments must be paid), NO_OF_INSTLMTS (Number of Installments)... 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. .