AFVVI 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 "Include structure of the operation quantities/dates/values" 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_AFVVI TYPE AFVVI.
The AFVVI table consists of various fields, each holding specific information or linking keys about Include structure of the operation quantities/dates/values data available in SAP. These include UMREN (Denominator for converting rtg and op units of measure), UMREZ (Numerator for converting task list and oper. un. of measure), BMSCH (Base Quantity), ZMERH (Break)... 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. .