USRFLDLAB_ST 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 "Structure for field lables in user 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_USRFLDLAB_ST TYPE USRFLDLAB_ST.
The USRFLDLAB_ST table consists of various fields, each holding specific information or linking keys about Structure for field lables in user fields data available in SAP. These include SLWID (Key word ID for user-defined fields), KTEXT (Description for the key word ID), SWRT0 (Key word for user-defined fields), SWRT1 (Key word for user-defined fields)... 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. .