You can, but it required modifying the database using the 'alter database' command which you don't just give to anyone (espically on a production server!).
Also remember after setting the recovery model back to 'full' you will need a full backup, otherwise your translaction logs will not be usuable.
e.g.
alter database pubs set RECOVERY FULL
alter database pubs set RECOVERY SIMPLE
Perhaps it would be better to look at rewriting your query.