COMT_CHANGED_SETTYPES 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 "Set Types with Change Information" 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_CHANGED_SETTYPES TYPE COMT_CHANGED_SETTYPES.
The COMT_CHANGED_SETTYPES table consists of various fields, each holding specific information or linking keys about Set Types with Change Information data available in SAP. These include UPDATE_TYPE (Type of Change), CALL_ORDER_SAVE_LOCAL (Call Sequence of Functions During Maintenance)... 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. .