The Ch07_LargeCo database stores data for a company that sells paint products . The company tracks the sale of products to customers . The database keeps data on customers (LGCUSTOMER) , sales (LGINVOICE), products (LGPRODUCT), which products are on which invoices (LGLINE), employees (LGEMPLOYEE), the salary history of each employee (LGSALARY_HISTORY), departments (LGDEPARTMENT), product brands (LGBRAND), vendors (LGVENDOR), and which vendors supply each product (LGSUPPLIES) . Some of the tables contain only a few rows of data , while other tables are quite large . Given the structure of the Ch07_LargeCo database shown above , use sql commands to answer the problems