COMT_PME_CLASSES 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 "PME Class Description" 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_PME_CLASSES TYPE COMT_PME_CLASSES.
The COMT_PME_CLASSES table consists of various fields, each holding specific information or linking keys about PME Class Description data available in SAP. These include CLASS_KEY (Name of OO class), KB_NAME (Name of OO class), LOGSYS (Logical system), ORGID (Organizational Unit)... 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. .