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Translation of ER-diagram into Relational Schema

Translation of ER-diagram into Relational Schema

CS 157A Lecture 7. Translation of ER-diagram into Relational Schema. Prof. Sin-Min Lee Department of Computer Science. Learning Objectives. Define each of the following database terms Relation Primary key Foreign key Referential integrity Field Data type Null value.

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1.1k views • 64 slides
W hat is a Database Management System?

W hat is a Database Management System?

W hat is a Database Management System?. Spring 2008. Lecture slides by Dr. Sara Cohen. What and Why. A database management system is a program used to: Store large amounts of data Allow easy access to the data (using a query language) Separate the physical schema from the logical schema.

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847 views • 51 slides
Why ER Model?

Why ER Model?

Why ER Model?. ER modeling is relatively easy to learn and use ERD shows a concise representation of the real-world in terms of entities and relationships We know how to translate ERDs into relational schema Most CASE tools support one or more variation of ERDs. ER Model (Peter Chen 1976).

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559 views • 50 slides
Eliciting Honest Feedback

Eliciting Honest Feedback

Eliciting Honest Feedback. Minimum Payments that Reward Honest Feedback (Jurca, Faltings). Eliciting Honest Feedback: The Peer-Prediction Model (Miller, Resnick, Zeckhauser). Nikhil Srivastava. Hao-Yuh Su. Eliciting Feedback. Fundamental purpose of reputation systems Review: general setup.

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562 views • 37 slides
Mapping ER Diagram to a Relational Database

Mapping ER Diagram to a Relational Database

Mapping ER Diagram to a Relational Database. Step 1: - Map the strong entities in the ER diagram.

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668 views • 37 slides
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??? ??????. ???? ?????? (Entity Relationship Model ? E-R Model) ????????????????????????????? (Objects) ???? (Entities) ?????????????????? (Relationship) ????????????????????????????????????????????????????????????????????. ????. 1-1 ??. 1-4 ???. 1-2 ??. 1-5 ?????. 1-3 ??.

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584 views • 36 slides
Book Chapter 3 (part 2 )

Book Chapter 3 (part 2 )

From ER to Relational Model. Book Chapter 3 (part 2 ). name. ssn. lot. Employees. Logical DB Design: ER to Relational. Translate Entity sets to tables:. CREATE TABLE Employees (ssn CHAR(11), name CHAR(20), lot INTEGER,

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438 views • 32 slides
Book Chapter 3 (part 2 )

Book Chapter 3 (part 2 )

From ER to Relational Model. Book Chapter 3 (part 2 ). name. ssn. lot. Employees. Logical DB Design: ER to Relational. Translate Entity sets to tables:. CREATE TABLE Employees (ssn CHAR(11), name CHAR(20), lot INTEGER,

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369 views • 32 slides
COMP102: Introduction to Databases, 30

COMP102: Introduction to Databases, 30

COMP102: Introduction to Databases, 30. Dr. Muhammad Sulaiman Khan Department of Computer Science The University of Liverpool U.K. 10 May 2011. Material Revision Lecture. Lecture 1&2. All stuff from these lectures !!! Data vs Information

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293 views • 20 slides
Data Modeling with ER Diagrams

Data Modeling with ER Diagrams

Data Modeling with ER Diagrams. What is an Entity-Relationship Model? How is an E-R model represented as an E-R diagram? How can a video store be modeled as an E-R diagram? What is a role in a relationship type? How can we record the history of video rentals?

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317 views • 14 slides
The transformation of an ER or EER model into a relational model

The transformation of an ER or EER model into a relational model

The transformation of an ER or EER model into a relational model. Transforming an ER model into a relational model. ER model - not supported directly by any DBMS needs to be translated into a model that is supported by DBMSs transformation / mapping process non-deterministic

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508 views • 11 slides
Amity School of Engineering & Technology B. Tech. (CSE/IT), III Semester

Amity School of Engineering & Technology B. Tech. (CSE/IT), III Semester

Amity School of Engineering & Technology B. Tech. (CSE/IT), III Semester Database Management Systems Jitendra Rajpurohit.

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229 views • 11 slides
Modeling Theory

Modeling Theory

Modeling Theory. Objectives. Allow modeling to be done ontologically (high level of abstraction, real-world modeling, application specific) Then, systematically transform the application model into an efficient implementation.

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185 views • 5 slides

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