MCQOPTIONS
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| 1. |
In an inventory management system implemented at a trading corporation, there are several tables designed to hold all the information. Amongst these, the following two tables hold information on which items are supplied by which suppliers, and which warehouse keeps which items along with the stock-level of these items. Supply = (supplierid, itemcode) Inventory = (itemcode, warehouse, stocklevel) For a specific information required by the management, following SQL query has been writtenSelect distinct STMP.supplieridFrom Supply as STMPWhere not unique (Select ITMP.supplierid From Inventory, Supply as ITMP Where STMP.supplierid = ITMP.supplierid And ITMP.itemcode = Inventory.itemcode And Inventory.warehouse = 'Nagpur');For the warehouse at Nagpur, this query will find all suppliers who |
| A. | do not supply any item |
| B. | supply exactly one item |
| C. | supply one or more items |
| D. | supply two or more items |
| Answer» E. | |