Database Modeling and Design: Logical Design 4th Edition Toby Teorey‚ Sam Lightstone‚ Tom Nadeau Lecture Notes Contents I. Introduction ................................................................………...……2 Relational database life cycle 3 Characteristics of a good database design process 6 II. The Entity-Relationship (ER) Model …………...……………….7 Basic ER concepts 7 Ternary relationships 11 III. The Unified Modeling Language (UML)………...…………….13 Class diagrams 13 Activity
Premium Data modeling Entity-relationship model Database normalization
CIS515 – CLASS #1 NOTES 1. Database – is a collection of related files (Tables) 2. File (Table) – is a collection of records (Rows) 3. Record (Rows) – is a collection of fields (Columns) 4. Field (Columns) – is a collection of characters (Bytes) 5. Character (Bytes) – is a collection of 8 bits 6. Bits – the smallest representation of data‚ it is either 1 (on voltage) or 0 (off voltage) Database File Table Record Rows Field Columns Character Bytes Bits
Premium Database Relational model SQL
Overview of Database Concepts TRUE/FALSE 1. A database is a physical storage device for data. ANS: F PTS: 1 REF: 2 2. A field is a basic unit of data also referred to as a record. ANS: F PTS: 1 REF: 3 3. A character is a basic unit of data and can consist of a number‚ letter‚ or special symbol. ANS: T PTS: 1 REF: 3 4. A collection of fields is a file. ANS: F PTS: 1 REF: 3 5. A collection of records is a file. ANS: T PTS: 1 REF: 3 6. A field in the logical design of a database corresponds
Premium Database normalization SQL Data modeling
the conventional data‚ much of this data is semi-structured or unstructured and not residing in conventional databases. “Big data” is essentially a huge data set that scales to multiple petabytes of capacity; it can be created‚ collected‚ collaborated‚ and stored in real-time or any other way. However‚ the challenge with big data is that it is not easily handled using traditional database management tools. It typically consists of unstructured data‚ which includes text‚ audio and video files‚ photographs
Premium Business intelligence Data management Data
Database Management Systems I Laboratory Exercise 1 – week 1 Year 1 Semester 2‚ 2013 Exercise 1: Group Activity Get into groups of 5‚ find details and do a 10 minutes presentation on the facts below. 1. Siripala Amarasinghe is a retail vendor of a small grocery shop. a) Explain how he maintains his sales information. b) Assume‚ now Siripala has expanded his business and is going to start a supermarket. Is it possible to handle purchase and sales information with his prevailing
Premium SQL Grocery store Database
Brief Introduction to Database Concepts Andrea Rodr´ ıguez Summer School - Castell´n 2004 o Department of Computer Science University of Concepci´n‚ Chile o http://www.inf.udec.cl/∼andrea andrea@udec.cl 1 Introduction Information and data are different. Information is understood by a person. Data are values stored on a passive medium like a computer disk. The purpose of a database management system (DBMS) is to bridge the gap between information and data - the data stored in memory or on disk
Premium Relational model Unified Modeling Language Entity-relationship model
donated their time to create a dozen Web sites and database applications for local charities. The APNC has a service program in which volunteers canvas the entire neighborhood every spring. They survey residents on numerous community health and well-being measures and then work to connect people with available services. The APNC needed a way to collect these surveys while out in the neighborhood and then synchronize the data back to the SQL Server database. This type of scenario occurs at many businesses
Premium Relational model Database SQL
Database Management Systems Memo Name: School: DBM-380 Database Concepts Instructor: Date: Database Management Systems Memo CST is a small company doing business for over 30 years. CST provides rehab services with several locations in the Los Angeles Metro area. Due to the nature and size of the business‚ there currently is no need for a huge network infrastructure. CST has a ten user network with two non-networked computers at each of its sites. The financial software is a product
Premium Database Database management system Computer
MIS5370: Database Design and Management Home work Question 1. After completing a course in database management‚ you have been asked to develop a preliminary ERD for a symphony orchestra. You discover the following entity types that should be included. • CONCERT SEASON: The season during which a series of concerts will be performed. Identifier is Opening_Date which includes Month‚ Day‚ and Year. • CONCERT: A given performance of one or more compositions
Free Database normalization Relational model
Migration of Databases – An XML Approach XML Database Migration is a project of migrating the existing databases into XML format. Conversion of databases to XML file format‚ the databases like Ms-Access‚ Oracle and MS-SQL‚ MySQL connects in the network or the oracle in the personal computer can be connected for the generation of XML code. Let us consider‚ user runs a firm with three companies with different database’s respectively. User planned to mingle the entire database’s of the firm in to
Premium XML PHP