Modern Database Management (12th Edition)
12th Edition
ISBN: 9780133544619
Author: Jeffrey A. Hoffer, Ramesh Venkataraman, Heikki Topi
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 7.64PAE
Rewrite your answer to Problem and Exercise 6-71 for each customer, not just customer 16.
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Below is the answer I got but it is incorrect
select PROJ_NUM, ROUND(SUM(ASSIGN_HOURS),2) as 'TOTAL_HOURS', ROUND(SUM(ASSIGN_CHARGE),2) as 'TOTAL_CHARGE'
from ASSIGNMENT -- from ASSIGNMENT table
group by PROJ_NUM; -- group by to aggregate per PROJ_NUM
Determine the results of the below query. Explain how the result was calculated.
SELECT TeamMember ID, SUM (Duration)
FROM Task
WHERE Duration > 1
GROUP BY TeamMember ID;
- The HR department needs a report to display employee information as shown from the job_history table. The months worked is the number of months from the start date to the end date. Only list those employees whose months worked is an even number. Order by months worked descending
Chapter 7 Solutions
Modern Database Management (12th Edition)
Ch. 7 - Prob. 7.1RQCh. 7 - Prob. 7.2RQCh. 7 - Prob. 7.3RQCh. 7 - Prob. 7.4RQCh. 7 - Prob. 7.5RQCh. 7 - Explain the relationship between EXISTS and...Ch. 7 - Prob. 7.7RQCh. 7 - Prob. 7.8RQCh. 7 - Prob. 7.9RQCh. 7 - Prob. 7.10RQ
Ch. 7 - Under what conditions can a UNION clause be used?Ch. 7 - Prob. 7.12RQCh. 7 - Prob. 7.13RQCh. 7 - List for advantages of SQL-invoked routines.Ch. 7 - Prob. 7.15RQCh. 7 - Prob. 7.16RQCh. 7 - Prob. 7.17RQCh. 7 - Prob. 7.18RQCh. 7 - Prob. 7.19RQCh. 7 - Prob. 7.20RQCh. 7 - Prob. 7.21RQCh. 7 - Prob. 7.22RQCh. 7 - Prob. 7.23RQCh. 7 - This chapter discusses the data dictionary views...Ch. 7 - Prob. 7.25PAECh. 7 - Prob. 7.26PAECh. 7 - Prob. 7.27PAECh. 7 - Are based on the class schedule 3NF relations...Ch. 7 - Prob. 7.29PAECh. 7 - Prob. 7.30PAECh. 7 - Prob. 7.31PAECh. 7 - Are based on Figure 7-17. This problem set...Ch. 7 - Prob. 7.33PAECh. 7 - Prob. 7.34PAECh. 7 - Prob. 7.35PAECh. 7 - Prob. 7.36PAECh. 7 - Prob. 7.37PAECh. 7 - Prob. 7.38PAECh. 7 - Prob. 7.39PAECh. 7 - Prob. 7.40PAECh. 7 - Prob. 7.41PAECh. 7 - Prob. 7.42PAECh. 7 - Prob. 7.43PAECh. 7 - Prob. 7.44PAECh. 7 - Write an SQL query to display the order number,...Ch. 7 - Prob. 7.46PAECh. 7 - Prob. 7.47PAECh. 7 - Prob. 7.48PAECh. 7 - Prob. 7.49PAECh. 7 - Prob. 7.50PAECh. 7 - Write an SQL query to list each customer who...Ch. 7 - Prob. 7.52PAECh. 7 - Modify Problem and Exercise 6-60 so that the list...Ch. 7 - Prob. 7.54PAECh. 7 - Prob. 7.55PAECh. 7 - Prob. 7.56PAECh. 7 - Prob. 7.57PAECh. 7 - Prob. 7.58PAECh. 7 - Prob. 7.59PAECh. 7 - Prob. 7.60PAECh. 7 - Prob. 7.61PAECh. 7 - Prob. 7.62PAECh. 7 - Prob. 7.63PAECh. 7 - Rewrite your answer to Problem and Exercise 6-71...Ch. 7 - Display the customer ID, name, and order ID for...Ch. 7 - Prob. 7.66PAECh. 7 - Prob. 7.67PAECh. 7 - Prob. 7.68PAECh. 7 - Prob. 7.69PAECh. 7 - Prob. 7.70PAECh. 7 - Prob. 7.71PAECh. 7 - Write an SQL query to list the order number,...Ch. 7 - Prob. 7.73PAECh. 7 - Prob. 7.74PAECh. 7 - Prob. 7.75PAECh. 7 - Prob. 7.76PAE
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- Problems 2932 are based on the following query: SELECT CUS_CODE, MAX(LINE_UNITSLINE_PRICE) FROM CUSTOMER NATURAL JOIN INVOICE NATURAL JOIN LINE WHERE CUS_AREACODE = '615' GROUP BY CUS_CODE; Assuming that you follow the recommendations you gave in Problem 29, how would you rewrite the query?arrow_forwardUsing tables named T1 and T2, write a query example for each of the three join types you described in Question 2. Assume that T1 and T2 share a common column named Cl.arrow_forwardAssuming that you completed Problem 10, write the query that will list the names and ages of your customers.arrow_forward
- Ensure that the only legal values for the BDRMS column in the CONDO_UNIT table are 1, 2, or 3.arrow_forwardGiven the employee information in Question 11, list the query output for the INTERSECT query.arrow_forwardHow is adding a NOT NULL constraint to an existing table different from adding other types of constraints?arrow_forward
- Problems 27 and 28 are based on the following query: SELECT P_CODE, P_DESCRIPT, P_QOH, P_PRICE, V_CODE FROM PRODUCT WHERE P_QOH P_MIN AND P_MIN = P_REORDER AND P_REORDER = 50 ORDER BY P_QOH; What indexes would you recommend? Write the commands to create those indexes.arrow_forwardProblems 2224 are based on the following query: SELECT P_CODE, P_DESCRIPT, P_PRICE, P.V_CODE, V_STATE FROM PRODUCT P, VENDOR V WHERE P.V_CODE = V.V_CODE AND V_STATE = 'NY' AND V_AREACODE = '212' ORDER BY P_PRICE; Write the command(s) used to generate the statistics for the PRODUCT and VENDOR tables.arrow_forwardInsert the data into the tables you created in Problem 1.arrow_forward
- Which type of constraint can be used to make certain the category for a book is included when a new book is added to inventory?arrow_forwardDesign a query of Stores with the following: Store Name, Store Size, Sum of order amounts, Percent of unpaid order amount, Weighted average volume discount. a. Volume discount: Percent difference between order amount and payment amount Design a query of Stores with the following: Store Name, Sum of all order amounts, Number of all orders, Top customer name, Top customer sum of invoice amounts, Top customer number of invoices, Top customer % of total invoice amount. (4 different tables : Orders table: orderid storeid customerid OrderDate OrderAmount paymentid PreferredOrder orderstatusid Customers table: customerid Name Company Type ContractDate PreferredEnrollmentDate PreferredVoidDate Payments Table: paymentid VolumeDiscount PaymentAmount PaymentDate PaymentMethod Stores Table : storeid Name Store Size Category ContractDate Type Order Status: orderstatusid Namearrow_forwardCreate the table that results from EMPLOYEE PRODUCT DEPT I am unsure of what to do here. I f the column DEPTNAME is in both tables do I put the column twice? Please explain what to do in this case and provide the result.arrow_forward
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