Hi,
in order to get rid of the warning "W:The database ..." one needs to add the pragma
##DB_FEATURE_MODE[VIEWS_WITH_PARAMETERS]
to the 'select from view' statement.
Of course, the 'select from view' statement should only be executed when "cl_abap_dbfeatures=>use_features ..." returns true, so the warning is a reminder that you check that you introduced the "cl_abap_dbfeatures=>use_features ..." properly in your program.
And then you can suppress the warning.
Regards, Christian