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6. Define the following terms: a. Key b. Superkey c. Candidate Key Primary Key d. e. Foreign Key f. Surrogate Key g. Entity Integrity Constraint Referential Integrity Constraint

6. Define the following terms: a. Key b. Superkey c. Candidate Key Primary Key d. e. Foreign Key f. Surrogate Key g. Entity Integrity Constraint Referential Integrity Constraint

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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I need help woth part E of this HW.........

transaction processing DBMSs. Topics we cover will include: Relational Model Concepts Relational Data Model Constraints Post-class assignment. Due dates are strictly enforced. 1. Look back at the restaurant dataset from your last homework, You may have found that some rows didn't contain the same data as other rows, when they should have matched. Please try to find a row and explain what's wrong. 2. In your Module 2 homework, you divided the restaurant columns (attributes) into three parts: Restaurant, Inspection, Violation. In your HW 2, you tried to create an ERD from this. Please draw the tables that come from the ERD entities (but not any relationships-that's the next module) 3. Look at your answer for (2). Please list all things that are present in your ERD from Module 2 that are missing from your answer for (2). 4. Please do Exercise 5.19 from your course textbook 5. Please do Exercise 5.20 from your course textbook 6. Define the following terms: a. Key b. Superkey c. Candidate Key d. Primary Key Foreign Key e. f. Surrogate Key g. Entity Integrity Constraint h. Referential Integrity Constraint Please hand in: Your submission must be a single Word (.docx) or PDF file.
Transcribed Image Text:transaction processing DBMSs. Topics we cover will include: Relational Model Concepts Relational Data Model Constraints Post-class assignment. Due dates are strictly enforced. 1. Look back at the restaurant dataset from your last homework, You may have found that some rows didn't contain the same data as other rows, when they should have matched. Please try to find a row and explain what's wrong. 2. In your Module 2 homework, you divided the restaurant columns (attributes) into three parts: Restaurant, Inspection, Violation. In your HW 2, you tried to create an ERD from this. Please draw the tables that come from the ERD entities (but not any relationships-that's the next module) 3. Look at your answer for (2). Please list all things that are present in your ERD from Module 2 that are missing from your answer for (2). 4. Please do Exercise 5.19 from your course textbook 5. Please do Exercise 5.20 from your course textbook 6. Define the following terms: a. Key b. Superkey c. Candidate Key d. Primary Key Foreign Key e. f. Surrogate Key g. Entity Integrity Constraint h. Referential Integrity Constraint Please hand in: Your submission must be a single Word (.docx) or PDF file.
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As you have asked only part E . So I am answering definition of the Foreign key.

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