CMPB_ASGN_DYN 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 "Dynamic Part of CMPB_ASSGN" 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_CMPB_ASGN_DYN TYPE CMPB_ASGN_DYN.
The CMPB_ASGN_DYN table consists of various fields, each holding specific information or linking keys about Dynamic Part of CMPB_ASSGN data available in SAP. These include STUNR (Step number), ZAEHK (Condition counter), KOLNR (Access sequence - Access number)... 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. .