ACCESS_DYNP 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 "iPPE Access - Dialog Structure" 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_ACCESS_DYNP TYPE ACCESS_DYNP.
The ACCESS_DYNP table consists of various fields, each holding specific information or linking keys about iPPE Access - Dialog Structure data available in SAP. These include ACCESS_TYPE (Number of the following screen), OTYPE (Object Type for iPPE Workbench), PNAME (iPPE Node Description), PNTYPE (iPPE Node Type, Alternative Type, or Variant Type)... 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. .