COMT_MV_APPEND_STRUC 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 Deleting Multiple-Value Attributes" 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_COMT_MV_APPEND_STRUC TYPE COMT_MV_APPEND_STRUC.
The COMT_MV_APPEND_STRUC table consists of various fields, each holding specific information or linking keys about Structure for Deleting Multiple-Value Attributes data available in SAP. These include TYPE (Data Type of Attribute)... 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. .