MDST_KEY_KEYLIST 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 "Structure for the Value Transfer to the Key Mapping" 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_MDST_KEY_KEYLIST TYPE MDST_KEY_KEYLIST.
The MDST_KEY_KEYLIST table consists of various fields, each holding specific information or linking keys about Structure for the Value Transfer to the Key Mapping data available in SAP. These include SOURCE_OBJECTKEY (UKM: Key Value), TARGET_OBJECTTYPE (Synchronization Object), TARGET_OBJECTKEY (UKM: Key Value)... 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. .