BAPILOAN_VDUNTR 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 "Loan Documents in a File" 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_BAPILOAN_VDUNTR TYPE BAPILOAN_VDUNTR.
The BAPILOAN_VDUNTR table consists of various fields, each holding specific information or linking keys about Loan Documents in a File data available in SAP. These include CONTRACT_NO (Contract Number), DOC_NO_1 (Number of Document in a File), FILENUMBER (File number of file for loan application), DOCUMENT (Document Type)... 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. .