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
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2616-2621 Design of a Hospital-Based Database System (A Case Study of BIRDEM) Rosina Surovi Khan Department of Computer Science and Engineering Ahsanullah University of Science and Technology (AUST) Dhaka‚ Bangladesh Email: surovi99@yahoo.com Abstract— As technology advances‚ information in different organizations of Bangladesh can no more be maintained manually. There is a growing need for the information to become computerized so that it can be suitably stored. This is where databases come into
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1 Database Design and Implementation Candidate Name: Course Name: Date of Submission: Authorization: MAY MYAT SWE Database Design and Implementation 7‚ April 2012 University of Greenwich June 2012 KMD Yangon Center MAY MYAT SWE 2 Database Design and Implementation Table of Contents No Description Page Assumption ........................................................................................ 3 1. 2. 3. 4. 5. 6. Conceptual Data Model ........................
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__________________________________________________________________________________ DATABASE DESIGN I. Introduction Database Application What is an Employment Agency System? An employment agency is an organization which matches employers to employees. In all developed countries there is a publicly funded employment agency and multiple private businesses which also act as employment agencies. Business Rules Business Rules One or more Agencies fall into one or more Reference Agency
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PHYSICAL DATABASE DESIGN EXAMPLES Example 1 – Consider the following relational database for the Super Baseball League. It keeps track of teams in the league‚ coaches and players on the teams‚ work experience of the coaches‚ bats belonging to each team‚ and which players have played on which teams. Note the following facts about this environment: The database keeps track of the history of all of the teams that each player has played on and all of the players who have played on each team. The
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CIT 214 – Assignment 1 – Logical Database Design‚ The Big Boys and Girls Gym Database View 1 MEMBER (MEM_ID‚ MEM_LAST‚ MEM_FIRST‚ MEM_EMAIL‚ MEM_LEVEL‚ MEM_BDAY) AK MEM_EMAIL SK MEM_LAST EMAIL (EMAIL_ID‚ MEM_ID‚ C_ID‚ EVENT_ID‚ EMAIL_DESCRIP) SK MEM_ID‚ C_ID‚ EVENT_ID FK MEM_ID ( MEMBER FK C_ID ( CLASS FK EVENT_ID ( EVENT CLASS (C_ID‚ C_NUMBER‚ C_NAME‚ C_START_TIME‚ C_END_TIME‚ C_ACTUAL_DATE) SK C_NUMBER EVENT (EVENT_ID‚ EVENT_DESCRIP) SK
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BOGAZICI UNIVERSITY MANAGEMENT INFORMATION SYSTEMS Dormitory Database By Serpil Erdoğan and Barış Çimen May‚24‚2011 For: Assistant Professor Sona Mardikyan MIS132:Introduction to Database English Table of Contents Page Introduction..............................................................................................................................4 1.General View of the Database.........................................
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If the stock market rises instead of fall as David expected‚ the price of stock market index future contract will decrease and the price of the stocks goes up. In general‚ the systematic risk of the portfolio that cannot be reduced by diversification has been hedged. A hedge is an investment position intended to offset potential losses/gains that may be incurred by a companion investment. In simple language‚ a hedge is used to reduce any substantial losses/gains suffered by an individual or an
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FOREIGN TRADING SYSTEMDATE:SRSINTRODUCTION This project emphasizes about the Foreign Trade System which is an interface between the Accountholder and the market. In the initial phase details about the various currencies and the profit and loss of currency hold is collected PROBLEM STATEMENT: The practice of currency trading is also commonly referred to as foreign exchange‚ Forex or FX for short.All currency has a value relative to other currencies on the planet. Currency trading system uses thepurchase
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The entity-relationship model (or ER model) is a way of graphically representing the logical relationships of entities (or objects) in order to create a database. entity type is a collection of entity instances sharing similar properties Strong Entity Vs Weak Entity An entity set that does not have sufficient attributes to form a primary key is termed as a weak entity set. An entity set that has a primary key is termed as strong entity set. A weak entity is existence dependent. That is the
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