how to delete an entry in "series"

[Martin d'Anjou]

Hi,

A user created a data set (a series) that we do not want. I can see the 
entry in the MySQL database. Is it just a matter of droping the entries in 
the database directly or is there more to it? e.g. is the following 
enough:

select series_id from series where name='test_data_set';
# write down id number on paper
drop from series where series_id=<the_id>;
drop from series_data where series_id=<the_id>;

Thanks,
Martin