Database creating for product comparison site

I'm launching a website that will compare different products. I need someone to create a database where the fields can be sorted by the customer. For example, they could click on the price column to show "low to high." I'm also looking for each column to be able to expand and collape by clicking a button since there will be a lot of columns for data. We'll need admin access to the database so we can enter the data. This needs to look very professional and I would want to see examples of databases you've done in the past. I do not have a frame of reference for setting the bidding price so I'm choosing the "small project" category but I will view all bids.