UPC_YS_STEPS_USAGE_DISPLAY 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 "Note on Using the Display Struture for Char. Relationships" 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_UPC_YS_STEPS_USAGE_DISPLAY TYPE UPC_YS_STEPS_USAGE_DISPLAY.
The UPC_YS_STEPS_USAGE_DISPLAY table consists of various fields, each holding specific information or linking keys about Note on Using the Display Struture for Char. Relationships data available in SAP. These include AREATXT (Name of Planning Area), PLEVEL (Planning level), PLEVELTXT (Name of Planning Level), STEP (Number of the Characteristic Relationship)... 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. .