CVIS_REL 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 Blocking Business Parnter Relationships" 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_CVIS_REL TYPE CVIS_REL.
The CVIS_REL table consists of various fields, each holding specific information or linking keys about Structure for Blocking Business Parnter Relationships data available in SAP. These include PARTNER1 (Business Partner Number), PARTNER2 (Business Partner Number), ALREADY_DONE (Data element for domain BOOLE: TRUE (='X') and FALSE (=' '))... 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. .