CMS_STR_PCN_CKY 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 "Process control key attributes" 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_CMS_STR_PCN_CKY TYPE CMS_STR_PCN_CKY.
The CMS_STR_PCN_CKY table consists of various fields, each holding specific information or linking keys about Process control key attributes data available in SAP. These include PROC_OBJ (Process Object), PROC_CKY (Process Control Key), NAME (Process Control Key Name)... 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. .