Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 1, Problem 5RQ
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Structural Independence and its importance:
- Structural Independence is making changes in the
database structure without affecting the access of data...
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Chapter 1 Solutions
Database Systems: Design, Implementation, & Management
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Prob. 5RQCh. 1 - Prob. 6RQCh. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - Prob. 9RQCh. 1 - Prob. 10RQ
Ch. 1 - Prob. 11RQCh. 1 - Prob. 12RQCh. 1 - Prob. 13RQCh. 1 - What are some basic database functions that a...Ch. 1 - Prob. 15RQCh. 1 - Prob. 16RQCh. 1 - Prob. 17RQCh. 1 - Prob. 1PCh. 1 - Prob. 4PCh. 1 - Prob. 5PCh. 1 - Prob. 6PCh. 1 - Prob. 7PCh. 1 - Prob. 8PCh. 1 - Prob. 9PCh. 1 - Prob. 10PCh. 1 - Using your schools student information system,...
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- In the section “Disadvantages of File Processing Systems,” the statement is made that the disadvantages of file processing systems can also be limitations of databases, depending on how an organization manages its databases. First, why do organizations create multiple databases, not just one all-inclusive database supporting all data processing needs? Second, what organizational and personal factors are at work that might lead an organization to have multiple, independently managed databases (and, hence, not completely follow the database approach)?arrow_forward35. What are strict and loose name equivalence?arrow_forwardWhat are the distinctions between avoiding and avoiding stalemate?arrow_forward
- Could you describe the duties of a database administrator for me? What ought to be his primary priorities at work, if there are any?arrow_forwardWhat characteristics are associated with normalisation processes that make use of functional dependencies?arrow_forwardWhat is the reason that normalized relations may not compromise an efficient physical implementation structure?arrow_forward
- The readers and writers dilemma may be posed in a number of different ways, depending on the order in which different categories of activities might be initiated. Speculate on three potential permutations of the issue, each of which may favor one set of procedures over another. Describe in detail the behavior of each variant when a reader or writer is ready to access the database and after a procedure has finished.arrow_forward1. Which of the studied data structures in this course would be the most appropriate choice for the following tasks? And Why? To be submitted through Turnitin. Maximum allowed similarity is 15%. a. A training institute needs to maintain a database of 2000 identification numbers of trainees who received an ICDL certification. The goal is to find rapidly whether or not a given ID is in the database. Ordering information among the identification numbers is not important; speed of response is very important; efficient use of memory is also important, but not as important as speed of response. b. A large fixed content of data needs to be maintained. It is sorted and the admin needs to search for and retrieve existing items, but no new/existing items will be inserted/deleted. You may assume that the data can fit inside the memory of the computer. c. A transposition table is a cache of previously seen positions in a game tree generated by a computer game playing program. If a position recurs…arrow_forwardQuestion 2 for a new chain of pharmacies with the following specifications: Utilize the different concepts we discussed to design a database (single ER diagram) 1. Patients are identified by SSN (Social Security Number), and the name, address, and age must be recorded for each patient. 2. Doctors are identified by SSN, and the names, specialties, and years of experience must be recorded for each doctor. 3. Every patient has a doctor, and every doctor has at least one patient. 4. Each pharmaceutical company is identified by name and has more than one phone number. 5. For each drug, the trade name and formula must be recorded. Each drug is sold by a given pharmaceutical company, pharmaceutical company is deleted, you need not keep track of its drugs any longer. 6. Doctors prescribe drugs for patients. A doctor could prescribe one or more drugs for several patients, and a patient could obtain prescriptions from several doctors. Each prescription has a date and a quantity associated with…arrow_forward
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