COMC_PRVIEW_DEF is a standard SAP Table which is used to store Product Workbench Default Setting Views data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The COMC_PRVIEW_DEF table consists of various fields, each holding specific information or linking keys about Product Workbench Default Setting Views data available in SAP. These include SETTYPE_GUID (Internal Key of a Set Type), VIEW_ID (View ID), VIEWSET_POS (Position of Set Type in View)... 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. .