History of Relational Database Hao-Wei He Wilmington University October 9‚ 2010 Abstract Database system have been inseparable with our daily life‚ since IBM developed the hierarchical database management system in 1969‚ database system has been innovated many times‚ such as hierarchical database‚ network database‚ relational database‚ and object-oriented database. Nowadays‚ relational database still is the most popular model used by different industries; this article is going to introduce
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References: Documentations ➢ D. Maier and J. Stein‚ Indexing in an object-oriented DBMS. ➢ Alfons Kemper and Guido Moerkotte‚ Object-Oriented Database Management‚ 1994 Websites ➢ David Maier’s home page: www.cse.ogi.edu/~maier ➢ http://en.wikipedia.org/wiki/Object_database ➢ http://www.comptechdoc.org/independent/database/basicdb/dataobject.html
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constructing of Relational Database using an EER Model 4.1 The steps involved in the design of relational database are 1) Developing the conceptual model – Drawing the ER/ EER diagram 2) Transforming the Conceptual model into a set of relations – relational schema and 3) Normalizing the relations. Once ER / EER model has been developed for the application ‚ ER/ EER diagram can be mapped into a relational model . ER/ EER diagram consists of the following components. 1)
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The history began between Relational Databases and SQL. In 1970‚ Edgar F. Codd wrote the now-famous paper on relational data modeling: "A Relational Model of Data for Large Shared Data Banks." The original relational database language‚ developed by IBM‚ was called SEQUEL (Structured English Query Language) to support its prototype RDBMS (Relational Database Management System) called System/R. The name later was changed from SEQUEL to Structured Query Language. In the beginning Codd started out a
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MOBILE QUERY AND PROCESSING IN MOBILE DATABASE ENVIRONMENT Agustinus Borgy Waluyo1 1 Bala Srinivasan1 David Taniar2 School of Computer Science and Software Engineering‚ Monash University‚ Australia {Agustinus.Borgy.Waluyo‚ Bala.Srinivasan}@infotech.monash.edu.au. 2 School of Business Systems‚ Monash University‚ Australia David.Taniar@infotech.monash.edu.au Abstract Mobile database is a new context of database application in wireless environment. It introduces unique type of queries‚
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Trident University Anuj Kainth Module 2 SLP CSC 316 – Database Systems I Professor: Michael J. Pelosi 7 February 2014 "Database Design for the PC Store Project" Introduction The database design for the PC Store project needs to fulfill several requirements the management has to oversee the sales‚ operations and profits of the store. The requested data will include Sales Transactions List‚ Inventory Status List‚ Monthly Profit Reports‚ Monthly Report of PCs not selling and Inventory Status
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CHAPTER 1: Introducing Database System LEARNING OUTCOMES TOPIC At the end of this chapter‚ students should be able to: DATABASE CONCEPT BSIT 201 Explain what is data management Differentiate manual file system and computerised file system with database system INTRODUCING DATABASE SYSTEM CHAPTER 1 Define database system‚ database and database management system List the functions‚ advantages and disadvantages of database management system PREPARED BY: YEW CHERN
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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
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Database Organization Here at the College of Veterinary Medicine‚ the databases that I have used are Microsoft SQLServer‚ Microsoft Access‚ and ProISAM. ProISAM is the type of database that Vetstar (our Hospital system) uses. It is the proprietary database for the PROIV programming environment that Vetstar is written in. The main problem with this database is that it is not ODBC compatible which just means that you cannot
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sorts of people need access to companies’ databases. In addition to a company’s own employees‚ these include the company’s customers‚ potential customers‚ suppliers‚ and vendors of all types. It is possible for a company to have all of its databases concentrated at one mainframe computer site with worldwide access to this site provided by telecommunications networks‚ including the Internet. Although the management of such a centralized system and its databases can be controlled in a well-contained manner
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