Aggregate SQL query grouping by month

Question

I have a database of Transactions (Access 2007) that are recorded in hourly, daily and monthly intervals. I would like to view them in a meaningful way (instead of hour-by-

Answer 1

something like...

SELECT Month(UsageTable.TransactionDate) & '/' & Year(UsageTable.TransactionDate) AS BillingPeriod, Sum(UsageTable.Usage) AS Usage
FROM UsageTable
WHERE (((UsageTable.TransactionDate) Between [Some Start Date] And [Some End Date]))
GROUP BY Month(UsageTable.TransactionDate) & '/' & Year(UsageTable.TransactionDate);