11. The distribution system for the Herman Company consists of three plants, two warehouses, and four customers. Plant capacities and shipping costs per unit (in $) from each plant to each warehouse are as follows: Warehouse Plant 1 Capacity 2 3 450 600 380 6 Customer demand and shipping costs per unit (in $) from each warehouse to each customer are as follows: a. Develop a network representation of this problem. b. Formulate a linear programming model of the problem. c. Solve the linear program to determine the optimal shipping plan. Customer Warehouse 1 3 6. 3 4 8 4 2 6. Demand 300 300 300 400

Discuss the role of query optimization in a database environment. Explain query execution plans and how they impact the performance of database queries.

Please provide a definition for each of the following terms: database

Please provide an example of an actual SQL database.