Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Chapter 1, Problem 10HOA
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Entity Relationship model
- An entity-relationship model describes interrelated things of interest in a specific domain of knowledge.
- It is composed of entity types and specifies...
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Chapter 1 Solutions
Oracle 12c: SQL
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Discuss the problems that can be caused by data...Ch. 1 - Explain the role of a primary key.Ch. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - What type of relationship can’t be stored in a...Ch. 1 - Identify at least three reasons an organization...
Ch. 1 - Prob. 1MCCh. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Which of the following has no partial or...Ch. 1 - Prob. 9MCCh. 1 - Which of the following has no partial dependencies...Ch. 1 - Which of the following has no repeating groups but...Ch. 1 - Prob. 12MCCh. 1 - Prob. 13MCCh. 1 - A unique identifier for a data row that consists...Ch. 1 - Which of the following symbols represents an...Ch. 1 - Prob. 16MCCh. 1 - Which of the following represents a field in a...Ch. 1 - Which of the following defines a relationship in...Ch. 1 - When part of the data in a table depends on a...Ch. 1 - Which of the following is used to join data...Ch. 1 - Which tables and fields would you access to...Ch. 1 - Prob. 2HOACh. 1 - Prob. 3HOACh. 1 - Prob. 4HOACh. 1 - Access path A database table is composed of...Ch. 1 - Prob. 6HOACh. 1 - Prob. 7HOACh. 1 - Prob. 8HOACh. 1 - Prob. 9HOACh. 1 - Prob. 10HOA
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- Source Data Automation is defined briefly, with examples of how it is utilised.arrow_forwardA new sales ordering system needs a relational database that contains a customer table, a product inventory table, and an order table. Use a word-processing, graphics, or spread-sheet program to draw an entity-relationship diagram showing the relationships among these entities. Next, design each of these tables showing the keys and attributes to be included in each table. Include five sample records for each table.arrow_forwardIn what specific ways may the Requests for Information be tracked all the way back to the place where they first originated?arrow_forward
- When data systems aren't properly linked, what types of issues and complications might arise?arrow_forwardConsider a school system in which data is recorded about the movie industry. The data requirements are summarized as follows: Each subject is owned by a department and each department ismanaged by a teacher, called Head of Department (HOD). Eachdepartment has a name and a unique code number. Each subjecthas a name, unique number and credit value. All teachers have aunique ID. A HOD cannot manage more than one department at atime. Also, a HOD does not teach subjects. A subject cannot betaught by more than one teacher. Finally, the system needs toknow each student’s contact details, including, full name, studentID, address, age and gender, as well as date of enrolment in thesubject. Design an Entity-Relationship diagram for the movie databasearrow_forwardData processing tasks and how they are linked, as well as a diagram representing that connectionarrow_forward
- A major information system has 1140 modules. There are 96 modules that perform control and coordination functions and 490 modules whose functions depends on prior processing. The system processes approximately 220 data objects that each has an average of three attributes. There are 140 unique database items and 90 different database segments. Finally 600 modules have single entry and exit points. Compute DSQI for the software.arrow_forwardDifferentiate between normalizing and standardizing. Explain your response by providing specific instances.arrow_forward
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