RSPLF_S_MSG_PARAM_CONTEXT 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 "Message Context for Parameter" 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_RSPLF_S_MSG_PARAM_CONTEXT TYPE RSPLF_S_MSG_PARAM_CONTEXT.
The RSPLF_S_MSG_PARAM_CONTEXT table consists of various fields, each holding specific information or linking keys about Message Context for Parameter data available in SAP. These include PARNM (Parameter Name), COMPNM (Parameter Name), PARAM_INDX (Line Index)... 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. .