bash - Use diff to find difference in the output of two grep command

Is it possible to diff the output of two grep commands?

I am currently searching for files, using different exclude patterns, and the output it pretty long, so i wanted to see if my new pattern worked, or the output is still the same..

Is it possible to somehow pipe two grep command into a diff or something like that?

grep --exclude=*{.dll, pdb} --ril "dql"
grep  --ril "dql"