class DBLayer:
    ODS: str = 'ods'  # operational data store
    DWD: str = 'dwd'  # data warehouse detail
    DWS: str = 'dws'  # data warehouse service
    DWM: str = 'dwm'  # data warehouse middle
    DIM: str = 'dim'  # public
    DW: str = 'dw'  # data warehouse
    APP: str = 'app'  # application
