Labels:text | screenshot | font OCR: invoice Line Item Fact Table Time dimension Time_key Customer_key Customer dimension Product dimension Product key Promotion key Promotion dimension Shipper dimension Shipper key Status_ key Status dimension Invoice Number Units Dollars Before Discount Discount Dollars After Discount Dollar Cost Figure 1. A Customer Invoices Data Mart. Each record in this fact table represents an invoice line item. The Invoice Number is a "degen- erate" dimension that allows line items on a particular invoice to be grouped.
