KPP0A 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 "CO planning processor: Structure char. table, fixed fields" 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_KPP0A TYPE KPP0A.
The KPP0A table consists of various fields, each holding specific information or linking keys about CO planning processor: Structure char. table, fixed fields data available in SAP. These include JOIN (Link number for bracketted dimensions/characteristics), VALUE (Value in Characteristics Table), INIT (Flag: Initial value chosen as select option), SCRTEXT_S (Short Field Label)... 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. .