'Students sid' presentation slideshows

Database Management Systems Chapter 3

Database Management Systems Chapter 3. The Relational Model. Why Study the Relational Model?. Most widely used model. Vendors: IBM, Informix, Microsoft, Oracle, Sybase, etc. Simple data representation and it can express complex queries. Recent competitor: object-oriented model

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The Relational Model

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The Relational Model

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The Relational Model

The Relational Model. Chapter 3. Modified by Donghui Zhang. Why Study the Relational Model? . Most widely used model. IBM, Informix, Microsoft, Oracle, Sybase, etc. Older models hierarchical model, network model Recent competitor: object-oriented model ObjectStore, Versant, Ontos

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Introduction to Relational Databases

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Database - mysql

Database - mysql. ??? euny@sparcs.kaist.ac.kr. Contents. Database DBMS Relational model SQL MySQL. Database. Database a collection of data Entity, relationship DBMS Database management system. DBMS. Why use a DBMS? efficient access reduced application development time

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CS146

CS146. References: ORACLE 9i PROGRAMMING A Primer Rajshekhar Sunderraman http://www.answers.com/ http://www.wikipedia.org/. Where ?. Run sql queries directly from http://phpmyadmin.student.seas.gwu.edu/. Tables. A relation from the relational data model translates to a table.

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CS146

CS146. References: ORACLE 9i PROGRAMMING A Primer Rajshekhar Sunderraman http://www.answers.com/ http://www.wikipedia.org/. Where ?. Run sql queries directly from http://phpmyadmin.student.seas.gwu.edu/. Tables. A relation from the relational data model translates to a table.

184 views • 18 slides

Tutorial 6 : Relational Def / Updates / Triggers

Tutorial 6 : Relational Def / Updates / Triggers. Question: Create three tables using SQL: Students, Courses, and Enrolled. In table definitions, you must enforce the following constraints: Students: sid, sname, major, year_of_study, gpa Courses: cid, cname, enroll_count, lecturer

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