/PLMB/S_SAM_NODE_FIELDS 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 "SAM Node Fields" 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_/PLMB/S_SAM_NODE_FIELDS TYPE /PLMB/S_SAM_NODE_FIELDS.
The /PLMB/S_SAM_NODE_FIELDS table consists of various fields, each holding specific information or linking keys about SAM Node Fields data available in SAP. These include OTYPE_NAME (Object Type), FIELDNAME (Technical Name of Field Set for Object Type), VALUE (Value to Be Set for Object Type in Field)... 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. .