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WebCT-chapter05sols

WebCT-chapter05sols - Answers to Chapter 5 Problems 1...

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2/23/2011 Answers to Chapter 5 Problems 1 Answers to Chapter 5 Problems 1. Customer CustNo CustFirstName CustLastName CustCity CustState CustZip CustBal Order OrdNo OrdDate OrdName OrdCity OrdState OrdZip Places All data types should be variable length character strings (VARCHAR) except for CustNo, OrdNo, and OrdDate. CustNo and OrdNo should be INTEGER. OrdDate can be either DATE or TIMESTAMP (include time and date). 2. Customer CustNo CustFirstName CustLastName CustCity CustState CustZip CustBal Order OrdNo OrdDate OrdName OrdCity OrdState OrdZip Places Employee EmpNo EmpFirstName EmpLastName EmpPhone EmpEMail EmpDeptName EmpCommRate Takes
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2/23/2011 Answers to Chapter 5 Problems All data types should be variable length character strings (VARCHAR) except for EmpNo and EmpCommRate. EmpNo should be INTEGER, and EmpCommRate should be DECIMAL. 3. Customer CustNo CustFirstName CustLastName CustCity CustState CustZip CustBal Order OrdNo OrdDate OrdName OrdCity OrdState OrdZip Places Employee EmpNo EmpFirstName EmpLastName EmpPhone EmpEMail EmpDeptName EmpCommRate Takes Manages 2
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2/23/2011 Answers to Chapter 5 Problems 4. Customer CustNo CustFirstName CustLastName CustCity CustState CustZip CustBal Order OrdNo OrdDate OrdName OrdCity OrdState OrdZip Places Employee EmpNo EmpFirstName EmpLastName EmpPhone EmpEMail EmpDeptName EmpCommRate Takes Manages Product ProdNo ProdName ProdQOH ProdPrice ProdNextShipDate Contains Qty 3
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2/23/2011 Answers to Chapter 5 Problems 5. Customer CustNo CustFirstName CustLastName CustCity CustState CustZip CustBal Order OrdNo OrdDate OrdName OrdCity OrdState OrdZip Places Employee EmpNo EmpFirstName EmpLastName EmpPhone EmpEMail EmpDeptName EmpCommRate Takes Manages Product ProdNo ProdName ProdQOH ProdPrice ProdNextShipDate ProdOrd Qty Contains UsedIn 6. If your ERDs look like the solutions to problems 4 and 5, the ER Assistant will not report any errors.
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  • Spring '08
  • Staff
  • Entity-relationship model, weak entity, CustFirstName CustLastName CustCity, CustLastName CustCity CustState, CustCity CustState CustZip, OrdName OrdCity OrdState

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