EFD_OBJKEY 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 "object key earmarked funds document" 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_EFD_OBJKEY TYPE EFD_OBJKEY.
The EFD_OBJKEY table consists of various fields, each holding specific information or linking keys about object key earmarked funds document data available in SAP. These include OBJKEY (Object key), OBJTYPE (Object Type), LOGSYS (Logical system)... 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. .