Yes, in the advanced Query builder, place a check next to the column you want to perform the aggregate function, in the Advanced Builder tab, click the <func> place holder and select the function to use.
see attached screen shot.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.