E2KNBKM 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 "Master customer master bank details (KNBK)" 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_E2KNBKM TYPE E2KNBKM.
The E2KNBKM table consists of various fields, each holding specific information or linking keys about Master customer master bank details (KNBK) data available in SAP. These include BANKS (Bank country key), BANKL (Bank number), BANKN (Bank account number), BKONT (Bank Control Key)... 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. .