DIMA_A_DI 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 "IO: Direct Input Structure for Insurance Object" 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_DIMA_A_DI TYPE DIMA_A_DI.
The DIMA_A_DI table consists of various fields, each holding specific information or linking keys about IO: Direct Input Structure for Insurance Object data available in SAP. These include AKTYP (Activity Category), RLTP1 (BDT: Object part), RLTP2 (BDT: Object part), RLTP3 (BDT: Object part)... 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. .