DTYPETEXT_MR_DATA 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 Maintaining Set Type DTYPETEXT" 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_DTYPETEXT_MR_DATA TYPE DTYPETEXT_MR_DATA.
The DTYPETEXT_MR_DATA table consists of various fields, each holding specific information or linking keys about Structure for Maintaining Set Type DTYPETEXT data available in SAP. These include CLIENT (Client), FRG_GUID (Set GUID), ELEMENT (MDF Text Element, like Set Type), SUBELEM (Subelement (Attribute of Set Type))... 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. .