Dear Wenzhuo Li,
the best way to check the level of the components is within the SAPGUI.
Logon to the system, pulldown-menue "System" and then "Status":
HCO_HBA.... is the SAP HANA Live Data Model, which is used for the execution of selects, e.g. in Fiori and Lumira.
Hope this answers your question.
Have a nice day.
Regards,
Robert
