FUNDAMENTALS OF DATABASE SYSTEMS PPT MANUAL

Database Systems, 9th Edition 10 Keys (contd.) Composite key Composed of more than one attribute Key attribute Any attribute that is part of a key Superkey Any key that uniquely identifies each row Candidate key A superkey without unnecessary attributes 11. Database Systems, 9th Edition 8 Keys Each row in a table must be uniquely identifiable Key is one or more attributes that determine other attributes Keys role is based on determination If you know the value of attribute A, you can determine the value of attribute B Functional dependence Attribute B is functionally dependent on A if all rows in table that agree in value for A also agree in value for B 9. Database Systems, 9th Edition 5 Tables and Their Characteristics Logical view of relational database is based on relation Relation thought of as a table Table: two-dimensional structure composed of rows and columns Persistent representation of logical relation Contains group of related entities (entity set) 6. Database Systems, 9th Edition 4 A Logical View of Data Relational model View data logically rather than physically Table Structural and data independence Resembles a file conceptually Relational database model is easier to understand than hierarchical and network models 5. Database Systems, 9th Edition 3 Objectives (contd.) About relational database operators, the data dictionary, and the system catalog How data redundancy is handled in the relational database model Why indexing is important 4. Database Systems, 9th Edition 2 Objectives In this chapter, students will learn: That the relational database model offers a logical view of data About the relational models basic component: relations That relations are logical constructs composed of rows (tuples) and columns (attributes) That relations are implemented as tables in a relational DBMS 3. Database Systems: Design, Implementation, and Management Ninth Edition Chapter 3 The Relational Database ModelДў. Slides Notice that you can safely skip partВ 3 unless you want a summary again of the previous lecture session. Part 3 (8:14В mins, recap of parts 1 and 2), Topic 10: Transactions and Concurrency Control Material of the lecture session: slides with quizzes Topic 9: Introduction to Transaction Processing Recording of the lecture: part 1 (49:50В mins), Video lecture for the second lecture session on the topic: Video lecture for the first lecture session on the topic: Topic 6: Functional Dependencies and Normalization Topic 5: Mapping of EER Diagrams to Relations

FUNDAMENTALS OF DATABASE SYSTEMS PPT MANUAL

Recording of second lecture sessionВ (1:33:16)Д¬heck also MySQL 8.0 Reference Manual (Chapter 13 - SQL Statements) Topic 4: EER Modeling Recording of first lecture sessionВ (1:20:35), Material of the lecture sessions: slides with quizzes and exercises, Video lecture for the second SQL-related lecture session: part 1 (43:29В mins) and Part 2 (49:12В mins) these videos are accessible only to people at LiU Video lecture for the first SQL-related lecture session: part 1 (43:32В mins) and Material of the lecture session: slides with quizzes and exercises, Video lecture: video (92:07В mins) this video is accessible only to people at LiU please watch this video before the corresponding lecture session and, while you do so, take notes on things that are unclear to you so that we can clarify them in the lecture session. Old material: slides from previous traditional lecture Material of the lecture session: slides about logistics, Video lecture: video (1h) please watch this video before the first lecture session and, while you do so, take notes on things that are unclear to you. Topic 12: Query Processing and Optimization.Topic 10: Transactions and Concurrency Control.Topic 9: Introduction to Transaction Processing.Topic 7: Stored Procedures and Triggers.Topic 6: Functional Dependencies and Normalization.Topic 5: Mapping of EER Diagrams to Relations.Fundamentals of Database Systems, Addison Wesley).ДЄre the slides that have used in earlier versions of the course. The reading guides refer to the textbook for the courseВ (Elmasri, R. This page contains lecture material including reading guides for all the lectures.

Fundamentals of database systems ppt