Seek advise for slice & dice a table

hi,

im having a table which holds a lot of information. i would like to
slice & dice in a BI-manner the table. u guys have any suggestions?
table looks a bit like this:
user
app [appa, appb, appc]
action [actiona, actionb, actionc]
timestamps

so it would be cool to sort, drill in&up based on the various
dimensions.

im not asking for a full bi-solution, but maybe the one or the other
faced a similar situation.

thx