BUKF_S_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 "Key Figures - Output parameters of the evaluation" 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_BUKF_S_PARAM TYPE BUKF_S_PARAM.
The BUKF_S_PARAM table consists of various fields, each holding specific information or linking keys about Key Figures - Output parameters of the evaluation data available in SAP. These include TABLE_TYPE (Name of table type), TITLE (ALV Control: Title bar text), FIELDNAME_LINENB (Field Name)... 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. .