CCSEC_MIG_CC 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 "Auxiliary Structure for Migration Program for Payment Cards" 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_CCSEC_MIG_CC TYPE CCSEC_MIG_CC.
The CCSEC_MIG_CC table consists of various fields, each holding specific information or linking keys about Auxiliary Structure for Migration Program for Payment Cards data available in SAP. These include PARTNER (Business Partner Number), CCINS (Payment cards: Card type), CCNUM (Payment cards: Card number), CCDEF (BP: Standard Payment Card)... 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. .