Reports are the best way to create a printed copy of information that is extracted or calculated from data in your database. Reports have two principal advantages over other methods of printing data.
Reports can compare, summarize, subtotal, and total large sets of data.
Reports can be created to produce attractive invoices, purchase orders, mailing labels, presentation materials, and other output you might need in order to efficiently conduct business.
Reports are designed to group data, to present each grouping separately, and to perform calculations. They work as follows:
You can define up to 10 grouping criteria to separate the levels of detail.
You can define separate headers and footers for each group.
You can perform complex calculations ...