Filter land cover dataset (right click on file in library)
create new pipeline
drag two files over to new pipeline
then in tools drag utility->feature collection and coverage calculators
link the calculators to the coverage and boundary files
double click on collection calc and field name, and give the field name of the new field
turn off boundary file in library and turn on feature collection calculator. it will run the pipeline.
Then right click on collection calculator and export, using string
Data Source=(LOCAL);Initial Catalog=test;User Id=themainuser;Password=thepassword;