Oracle has a cube function for groupby clause which takes 2 or more columns and groups the results set in all possible combinations of columns passed to the cub
tiki-wiki
many-to-many
needleman-wunsch
ocelot
cakeyframeanimation
mssql-scripter
email-ext
oracle-cdc
electron-webview
mdp
nimbus
document-template
servicestack
unusernotification
adobe-reader
coil
tags
componentlistener
proyecto26.restclient
rsyslog
client-certificates
google-ad-exchange
canalyzer
spamassassin
fselector
roi
onbackpressed
dsharp+
jql
gradle-multi-project-build