RMSAS_STD_LAY_HT_DB 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 "RMS-ATL: Text Table Layout (Database 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_RMSAS_STD_LAY_HT_DB TYPE RMSAS_STD_LAY_HT_DB.
The RMSAS_STD_LAY_HT_DB table consists of various fields, each holding specific information or linking keys about RMS-ATL: Text Table Layout (Database Structure) data available in SAP. These include MANDT (Client), LAYOUT (Standardization Layout), SPRAS (Language Key), TEXT (Standardization Layout Name)... 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. .