Peak data usage of the day

[Arty]

Hello,

I have a table where I need to get of everyday the peak data usage.
the table look like this:
Date( Time) , Name , Data Usage,
2009-01-01 00:00:00 , Client1 , 1234567,
2009-01-01 00:00:00 , Client2 , 7654321,


ect
ect

How can I get the the peak data usage of a client every day?

Thank you

[dcrake]

Group by client by date sort by date by client ascending and usage descending in a query

[Arty]

I think i didn't explain it good.

I have a list of a lot of clients every day
The thing is that i want to know which client has the max usage data every day.

[dcrake]

If you group by date ans sort by usage descending