Database Systems: Design, Implementation, & Management
11th Edition
ISBN: 9781285196145
Author: Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher: Cengage Learning
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Chapter 1, Problem 9P
Program Plan Intro
Data redundancy:
- Data redundancy is the presence of repeated data in the storage device. It consists of duplicate data that is additional to the actual data.
- In this case, the data related to a folder can be seen in other folders. For example, file related to science folder can be seen in mathematics or social.
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Database Systems: Design, Implementation, & Management
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- I understand the purpose of a database, which is to make data record-keeping easier for any company. And I'm aware of the hardware requirements. The concept of programming the rules and structure of a database is the area in which I am most confused. A database, in my mind, is a chart (or many charts) containing fields that are used to hold records. Then, of course, those records in one chart interweave with those in other charts, necessitating the creation of chart linkages. The concept of developing a framework for the data to fit into is where I get stuck. Are we creating metaphysical venues to store data, or are we just recording relationships between data saved on a variety of platforms?arrow_forwardProduce the 3NF for the following: Scenario 1 This is a simple list table of a company trying to keep track of parts that they sell and orders that came in purchasing those parts (in other words, not a database but a flat one table file) You will design a database for this company so that they won't be relying on a simple 1 table list system to keep track of their data. Looking at the table below, produce the IN of the data OrderDate 10/20/2010 10/20/2010 10/20/2010 10/21/2010 10/21/2010 10/23/2010 10/21/2010 10/23/2010 10/23/2010 OrderNum 21608 PartNum AT94 DR93 NumOrdered 11 1 Description QuotedPrice $21.95 $495.00 $399.99 $329.95 S595 00 $794.95 $150.00 $495.00 00 0621S Iron 21610 Gas Range 21610 21613 DW11 Washer KL62 Dryer Dishwasher Home Gym Microwave Oven Gas Range Treadmill 21614 21617 ктоз 21617 CDS2 4. 21619 DR93 1. 21523 KV29arrow_forwardDo database designers need to be aware of any specific technique that, when used in certain situations, has the potential to have a significant impact on a database's performance?arrow_forward
- Normalization the table below to 3NF to overcome the problems in it SID CID S_name C_name Grade Faculty F_phone 1 IS318 Adams Database A Howser 60192 1 IS301 Adams Program B Langley 45869 IS318 Jones Database A Howser 60192 3 IS318 Smith Database B Howser 60192 4 IS301 Baker Program A Langley 45869 IS318 Baker Database B Howser 60192 2. 4)arrow_forwardDo database designers need to be aware of any special technique that, depending on the circumstances, might have a major effect on the database's performance?arrow_forwardDo database designers need to be aware of any particular technique that, when used in certain situations, has the potential to have a significant impact on a database's performance?arrow_forward
- Question: A project is proposed to design a database to store details of laptops in a school. The shop has several laptops, where each laptop can be used by many users. Information to be stored about each laptop includes ID, users, type, and a list of software. Each chapter has exactly one main user and zero or more secondary users. A software has a unique name and validity. Each user has a name and a unique ID and it should be possible to search the database by users names, laptop IDs, and software keywords. Whenever any user uses a software on laptop, the date and time of usage should be recorded; this is used name and role (student, teacher, or administrator). r reporting when a software was last used, as well as recording the number of times a software was used. Each user is identified by a unique ID, has aarrow_forwardAre you familiar with the most typical uses of database triggers and stored procedures?arrow_forwardA database at a college must support the following requirements: a. For a department, store its number and name. b. For an advisor, store his or her number, last name, first name, and the department number to which the advisor is assigned. c. For a course, store its code and description (for example, DBA210, SQL Programming). d. For a student, store his or her number, first name, and last name. For each course the student takes, store the course code, course description, and grade earned. Also, store the number and name of the student's advisor. Assume that an advisor might advise any number of students but that each student has just one advisor. Design the database for the preceding set of requirements. Determine any functional dependencies. List the tables, columns, and relationships. In addition, represent your design with an E-R diagram.arrow_forward
- An index is an orderly arrangement used to logically access rows in a table. From a conceptual point of view, an index is composed of an index key and a set of pointers. In your opinion, explain the role indexes play in a relational database.arrow_forwardCreate a Visual Studio Application / Solution Project based on a real life situation to computerize its existing manual system. Imagine that you are told to develop a software system to manage Employee details of a company. a) Create a database called HOSPITAL and a table with a name PATIENT inside the database. The table should contain at least 8 columns of various data types. b) Add at least 15 records into the table PATIENT. c) Configure the database and display all the records from the table PATIENT on the Form with Details View as well as Data Grid View.arrow_forwardExplain the concept of data binding in the context of database applications. How does it differ from front-end data binding?arrow_forward
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