Database

Powerful Essays

Open Document

Open Document

View Writing Issues

2550 Words

Grammar

Grammar

Plagiarism

Plagiarism

Writing

Writing

Score

Score

Database

Designing Databases: Building a Conceptual Data Model [1]

Fundamentals of Databases

Alvaro A A Fernandes

School of Computer Science

University of Manchester

Acknowledgements 2

These slides are minor adaptaAons of material

authored and made available to instructors by

Ramez Elmasri and Shamkant B. Navathe

to accompany their textbook

Database Systems: Models, Languages, Design, and ApplicaGon Programming,

6th (Global) EdiGon

Addison-‐Wesley Pearson, 2011, 978-‐0-‐13-‐214498-‐8

Copyright © 2011 Pearson EducaAon, Inc., whom I thank.

All errors are my responsibility.

Outline 3

§
§
§
§
§
§
§
§

What are database applicaAons? Why conceptual modelling? What are the phases in the design of database applicaAons? What is enAty-‐relaAonship (ER) modelling? What are enAty types and enAty sets, aRributes and value sets? What are relaAonship types, relaAonship sets and roles? What structural constraints are used in ER modelling? What guidelines are used for ER modelling?

Conceptual Design of Database ApplicaAons 4

§

§

§

§

Database ApplicaGons § comprise a parAcular database and those applicaAon programs that implement queries and updates to that

Continue Reading

You May Also Find These Documents Helpful

Good Essays
CMGT 400 Week 1 DQs
- 676 Words
- 3 Pages
CMGT 400 Week 1 DQs

The project for CIS336 is designed to touch all aspects of the fundamental concepts of database design and logical data modeling covered during the class. The project is team centered and each team will be responsible for designing, developing, and demonstrating the functionality of a database created based on a defined set of business specifications. At the end of the session, each project team will submit the database designed by the team and demonstrate the database's ability to deliver the required information as outlined in the project specifications. All aspects of the project will be ...…
- 676 Words
- 3 Pages
Good Essays

Read More
Good Essays
Cis 515week 3
- 1024 Words
- 4 Pages
Cis 515week 3

Bibliography: (2012). Database systems: Design, implementation, and management. (10 ed.). United States of America: Joe Sabatino.…
- 1024 Words
- 4 Pages
Good Essays

Read More
Good Essays
Nt1320 Unit 7
- 2041 Words
- 9 Pages
Nt1320 Unit 7

Answer: A database is a model of how the users view their business world. This means that the users are the final judges as to what data the database should contain and how the records in that database should be related to one another. The easiest time to change the database structure is during the data modeling stage. So the user should be actively involved in the modeling process. The user review of a data model is crucial. When a database is developed, the user must carefully review the data model.…
- 2041 Words
- 9 Pages
Good Essays

Read More
Satisfactory Essays
Database
- 504 Words
- 4 Pages
Database

Copy and paste the specified ipconfig /all command output from the Windows CLI into the Task 1 box provided below.…
- 504 Words
- 4 Pages
Satisfactory Essays

Read More
Good Essays
Assignment 1 Business Rules and Data Models
- 906 Words
- 3 Pages
Assignment 1 Business Rules and Data Models

References: Coronel, C., Morris, S., & Rob, P. (2013). Database systems: Design, implementation, and management (10th ed.). Independence, KY: Cengage.…
- 906 Words
- 3 Pages
Good Essays

Read More
Good Essays
Data Base
- 2312 Words
- 10 Pages
Data Base

* Each value manipulated by an Oracle database possesses a data type. The data type of a value links a selection of attributes to the value. These attributes of the value differentiate one data type from the others. Oracle treats certain data types in a distinct way. For instance, one can add values of NUMBER data type, but not values of RAW data type. When one builds a table or a cluster, one must assign data types for all its columns. In Oracle, the arguments of a procedure or stored function also need to be allocated data types. The data types specify the domain of values which…
- 2312 Words
- 10 Pages
Good Essays

Read More
Satisfactory Essays
Database Sql Server
- 328 Words
- 2 Pages
Database Sql Server

Data mining uses business intelligence tools and techniques on a variety of data sources brought together in a data warehouses. true…
- 328 Words
- 2 Pages
Satisfactory Essays

Read More
Satisfactory Essays
Database
- 330 Words
- 2 Pages
Database

There are three problems. First is deletion problem, second is update problem, third is insertion problem.…
- 330 Words
- 2 Pages
Satisfactory Essays

Read More
Good Essays
Database concepts
- 586 Words
- 3 Pages
Database concepts

Then the functional dependency A → C (which follows from 1 and 3 by the axiom of transitivity) is a transitive dependency.…
- 586 Words
- 3 Pages
Good Essays

Read More
Good Essays
Database
- 797 Words
- 3 Pages
Database

1) Which account is designated as the owner of a relation? What privileges does the owner of a relation have?…
- 797 Words
- 3 Pages
Good Essays

Read More
Satisfactory Essays
Database Proposal
- 503 Words
- 3 Pages
Database Proposal

Islamabad college for Girls f-6/2 was founded in May 1968 as Islamabad Model School for Girls. This prestigious education institution of Islamabad started its classes in an under-construction building without even a boundary wall and with a student population of only 64. Today it has a student enrollment of nearly 4,000. Initially, Islamabad College for Girls, popularly known as I.C.G. at home and abroad, had classes up to the Matric Level but was upgraded to the intermediate level in 1975 and graduate level in 1985. M.A. English classes were introduced in 1989 followed by the programme of M.Sc. in Applied Psychology. The college is affiliate with the Punjab University at the graduate and post graduate level.. This institution has classes from Prep to Post-graduate level.…
- 503 Words
- 3 Pages
Satisfactory Essays

Read More
Powerful Essays
database
- 1854 Words
- 8 Pages
database

Concessionaires converge at the two-storey University Canteen to give students a wide array of choices for snacks and meals. Presented fast-food style, students serve themselves and recharge their energies in a multi-colored canteen to make mealtime a joyful moment with classmates and teachers. But since this is where food for the day is handled, utmost cooperation is needed to keep it clean, orderly and efficient. After taking their meals, students must put trash in waste cans, and trays and utensils in racks where they belong. With nutritious food and clean surroundings, all are assured of enjoyable mealtimes. The Food court is open from 7:00 a.m. to 5:00 p.m., Monday to Saturday.…
- 1854 Words
- 8 Pages
Powerful Essays

Read More
Powerful Essays
dbms
- 19259 Words
- 78 Pages
dbms

The language that requires a user to specify the data to be retrieved without specifying…
- 19259 Words
- 78 Pages
Powerful Essays

Read More
Powerful Essays
DBMS
- 1589 Words
- 7 Pages
DBMS

*kapag may mali sa functionalities paki bago nln nandyan naman na ung mga links at paki ayos nalan to. Pasensya na tlga…. Nag rurush din ako, at ang openoffice ndi naman tlga siya parang mysql na pure data base…
- 1589 Words
- 7 Pages
Powerful Essays

Read More
Better Essays
Databases in My Organization
- 986 Words
- 4 Pages
Databases in My Organization

Databases have been in use since the early days of computing programs. An Information Technology services company, such as Getronics, not only utilizes databases for information and record management, it earns revenue by providing database management services. Getronics uses Microsoft SQL Server 2000 as its database software. The clients that contract Getronics for Information Technology services rely and depend on the accuracy and currency of the database information that is stored. Databases will continue to exist and expand as more companies become more of aware of the importance of record and data management.…
- 986 Words
- 4 Pages
Better Essays

Read More

Related Topics