ABC Supply Company needs to keep track of their office and computer inventory in order to reduce costs, manage reorder points, and better track item locations within their facilities. They need to track which buildings contain what products and be able to contact the manager of each building to verify inventory and reorder products, when necessary. The New Technology Center (NTC) is a building managed by Ingrid B. Johnson, while the Candice Simms Foundation (CSF) Building is managed by Mary B. Carter. Both managers have access to the central building phone number. Currently, one of the administrative assistants keeps track of office furniture, computers, servers, printers, scanners, printer toner, etc. using a simple spreadsheet. It looks something like this, with just a sample of five of the items tracked:

Item Number Item Name Building Room Number(s) Vendor ID Vendor Name Item Quantity on Hand Item Quantity on Order
231134-678 HP DeskJet 895Cse New Technology Center 325,100 555 Sam’s Supply Store 6 0
342245-225 HP Toner New Technology Center 325 555 Sam’s Supply Store 12 2
254668-449 DT Scanner Candice Simms Foundation Building 123 456 John’s Warehouse 18 1
254678-449 DT Hard Drive Candice Simms Foundation Building 100 987 Electronic Depot, Inc. 4 2
254278-450 DT 400 Cable New Technology Building 100 987 Electronic Depot, Inc. 2 1

follow SQL programs to extract the data to answer these questions:

a. Which items are currently on order and from what vendor?
b. What is the list of inventory (items), along with the location (building and room) and the quantity on hand of each. 3) What is the aggregated count of items in each building? Each room of each building?
c. What is the manager name and phone number of each building and the products stored in that building?
d. What is the aggregated count of all items in all buildings by vendor name?