Consider Case Study (2): World's Trend Catalog Division. If you know that the parent process (3) - PRODUCE PICKING LIST have the following child subprocesses: 1. Read Item Record (from Items File) 2. Create Order Record (to Order Item File) 3. Sort Item by Location in Warehouse (to sorted orders file) 4. Get Customer Records (from Customer File) 5. Print Order Picking Slip

Consider Case Study (2): World's Trend Catalog Division. If you know that the parent process (3) - PRODUCE PICKING LIST have the following child subprocesses: 1. Read Item Record (from Items File) 2. Create Order Record (to Order Item File) 3. Sort Item by Location in Warehouse (to sorted orders file) 4. Get Customer Records (from Customer File) 5. Print Order Picking Slip

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Instructions: Create a dimensional model for a particular business process involving gym membership. A customer can sign up for a membership of say one, three, six or twelve months. I want to make it easy to query to identify current members, members who expired in the last month, members who renewed in the last month, those who are pending expiry etc. If I have a basic model with a fact table representing a gym membership say start_date_key end_date_key membership_attribute_key customer_atrribute_key fee with associated dimension table for date, membership attributes such as length, customer attributes and so forth. On a particular day, the active members are those with a start date before the day and an end date after that day. Those who will expire next month are those where the end date is in a particular date range.
Create an ER diagram that correctly describes the database for exams at Campus in Bäcksvängen in accordance with the following description: (Own assumptions must be clearly described.) Staff for various functions are involved in the exams. All staff have a full name and a unique staff code. Some people are examiners on one or more courses. A course has one name and one unique ladok code. For a course, you can add up its points based on the associated elements. One part is part of a course (for example an exam, a laboratory or project). A course can have several different parts. An element has a name, a description, a torque code, one point and two or more grades (eg: U, G, VG). An element can only belong to one course. Since the database is to process the exams, it is obvious that a part like described as an examination has an examination opportunity that is identified, among other things, by the date, start time, end time and that it is possible to calculate total writing time. A…
James River Jewelry is a small jewelry shop. While James River Jewelry does sell typical jewelry purchased form jewelry vendors, including such items as rings, necklaces, earrings, and watches, it specializes in hard-to-find Asian jewelry. Although some Asian jewelry is manufactured jewelry purchased from vendors in the same manner as the standard jewelry is obtained, many of the Asian jewelry pieces are often unique single items purchased directly from the artisan who created the piece (the term “manufactured” would be an inappropriate description of these pieces). It has a small but loyal clientele, and it wants to further increase customer loyalty by creating a frequent buyer program. In this program, after every 10 purchases, a customer will receive a credit equal to 50 percent of the sum of his or her 10 most recent purchases. This credit must be applied to the next (or “11th”) purchase. Figure D-1 shows data that James River Jewelry collects for its frequent buyer program.…
Draw the ER diagram based on the following specification. A tutorial school is using a database to manage information about teachers, courses, and students. Each teacher is identified by staff_id, has a name, an email address, and a phone number. Each student is identified by student_id, has a name, an email address, and a registration date. Each course is identified by course_id, year, and semester. In addition, each course has a name. Each course is associated with multiple lessons. A lesson has a lesson number, a location, a date, a start-time, and an end-time. Lesson numbers are sequentially numbers, starting from 1, generated separately for each course. Each teacher teaches at least one course. Each student takes at least one course. Each course is taught by one teacher. Each course can be taken by many students.
Normalize to third normal form and complete the crow's foot ER Diagram for the following: Career Services would like to keep track of internships. A first attempt at a "database" placed information in an excel worksheet - here is an example: Stu-Name Stu-Cell 223334433 Gimli Gloin 980-224-3333 2169 Stu-ID Stu-Advisor-ID Stu-Advisor-Name Arwen Elrond Stu-Advisor-email Internship-ID/Internship-Desc/Internship-Company/Hire-Date arwen@uncc.edu 01 - DB Analyst - Wells Fargo - 1/1/2021 55 - DB Analyst2 - Bank of America - 6/2/2021 39 - Programmer - Food Lion - 9/2/2021 Business Rules: • A student can have zero to many internships. • An internship can have zero to many students • A student has one and only one advisor • An advisor has one to many students • You do not have to subdivide elements (i.e. turn Stu-Name into Stu-First and Stu-Last)
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Use the class diagram to specify the database for the followingbusiness processes at a university The Tuition Fee Payment Process
Imagine you have been tasked with cataloging the information found in books. Either more books need to be added, or the ones on one side of the shelf need to be rotated out. Find the optimal data structure and explain why it works here. Add books to the shelf in a dynamic fashion. When new information must be added to an existing database but there isn't enough space, what happens?
The CVT Company is a leader in the manufacture of work clothes. You are hired as database administrator for the company and your IT supervisor asked you to solve a retrieval speed problem they used to have with a large file for item records. Your supervisor mentioned that they have sorted the file but the problem didn’t improve, so they need to create a B+ tree index to solve the problem. Your supervisor outlined the way to do it: “The best way to accomplish this task is to scan the file, record by record, inserting each one using the B+ tree insertion procedure.” Being a fresh graduate, you noticed that since the file is already sorted there is a better way to do it. What performance and storage utilization problems are there with your supervisor’s approach? Explain how the bulk-loading algorithm provides a better alternative than the proposed scheme.
Study the details below and create ERD diagram for each question below. Drone / Video: a Drone may take many Videos; a Video is taken by one Drone. A Video instance is optional for a Drone; a Drone instance is required for a Video. A Facility may be recorded by many Videos; a Video records one Facility. A Video instance is optional for a Facility; a Facility instance is required for a Video. A Video may be the basis of many Analyses; an Analysis is based on one Video. An Analysis instance is optional for a Video; a Video instance is required for an Analysis
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