PRMPLCS_2 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 "BW Extraction Structure for Maintenance Planned Costs - Ext." 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_PRMPLCS_2 TYPE PRMPLCS_2.
The PRMPLCS_2 table consists of various fields, each holding specific information or linking keys about BW Extraction Structure for Maintenance Planned Costs - Ext. data available in SAP. These include FISCVAR (Fiscal year variant), FISCYEAR (Fiscal year), FISCPER3 (Posting period), START_DATE (Next planned date)... 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. .