There are two (E) ERDS in this assignment. Transform the following (E) ERDS into Relations(tables) with primary keys (PK) and foreign keys (FK) as needed. Download the word doc, insert your answers under the (E) ERDS and submit it. You must specify primary keys and foreign keys. You must show referential integrity constraints. Use either of the following notations ex.) Pk-primary key, Fk - Foreign key Rental( MID {pk, fk}, CID {pk, fk}, date) - references Customer(CID) and Movie (MID) Customer(CID{pk}, name) Movie (MID{pk}, title) EMPLOYEE Date Hired PERSON SSN Name Address City State Zip Code Telephone VOLUNTEER {Skill} DONOR Donates ITEM

There are two (E) ERDS in this assignment. Transform the following (E) ERDS into Relations(tables) with primary keys (PK) and foreign keys (FK) as needed. Download the word doc, insert your answers under the (E) ERDS and submit it. You must specify primary keys and foreign keys. You must show referential integrity constraints. Use either of the following notations ex.) Pk-primary key, Fk - Foreign key Rental( MID {pk, fk}, CID {pk, fk}, date) - references Customer(CID) and Movie (MID) Customer(CID{pk}, name) Movie (MID{pk}, title) EMPLOYEE Date Hired PERSON SSN Name Address City State Zip Code Telephone VOLUNTEER {Skill} DONOR Donates ITEM

Database Systems: Design, Implementation, & Management

12th Edition

ISBN:9781305627482

Author:Carlos Coronel, Steven Morris

Publisher:Carlos Coronel, Steven Morris

Chapter3: The Relational Database Model

Section: Chapter Questions

Problem 19P: Do the tables exhibit referential integrity? Answer yes or no, and then explain your answer. Write...

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Based on the following functional dependencies, for the relation SCHEDULE bring it into a set of 3NF relations. Dependencies: Section#, CourseID, Semester ID → RoomNo Section#, CourseID, Semester ID → Inst_ID Section#, CourseID, Semester ID → Week_day Section#, CourseID, Semester ID → Start_time Section#, CourseID, Semester ID → End_time Course_ID → Course Name RoomNo → Occupancy Instr_ID → Instr_name SCHEDULE CourseID, Section#, Semester ID, Course Name ,RoomNo, Occupancy, Inst_ID, Instr_Name, Week_day, Start_time, End_time)
To prevent modification anomalies, which of the following are created for a relation? Group of answer choices: 1. foreign keys 2. functional dependencies 3. referential integrity constraints 4. multi-valued attributes 5. primary keys 6. normal forms
For each table, identify the primary key and the foreign key(s). If a table does not have a foreign key, write None in the space provided. Do the tables exhibit entity integrity and referential integrity? Answer yes or no and then explain your answer. In the case of Referential Integrity write NA (Not Applicable) if the table does not have a foreign key. iii. Describe the type(s) of relationship(s) between STORE and REGION Create the ERD to show the relationship between STORE and REGION.6 Describe the type(s) of relationship(s) between EMPLOYEE and STORE. (Hint: Each store employs many employees, one of whom manages the store.) Draw the ERD to show the relationships among EMPLOYEE, STORE and REGION.
Put the answer if you are 100% sure of the answer, otherwise no To transform a relation from 1st NF to 2nd NF we must remove which of the following? All partial-key dependencies All inverse partial-key dependencies All repeating groups All transitive dependencies Al the following are integrity constraints, EXCEPT: Primary Key Distinct Unique Check How many cases there are for creating a DB trigger based on the time and the event of the Trigger ? Three Cases Four Cases Five Cases Six Cases
The WorkOrders table contains a foreign key, ClientNum, which must match the primary key of the Client table. What type of update to the WorkOrders table would violate referential integrity? If deletes do not cascade, what type of update to the Client table would violate referential integrity? If deletes do cascade, what would happen when a client was deleted?
Consider the follow relations’ schemas to answer the following questions: Student (sid, name, level, address) Book(bid, title, author) BorrowedBook(sid, bid, date) 1) Assume that, there are 10,000 Student records stored on 1,000 pages/blocks, 50,000 Book records stored on 5,000 pages, 300,000 BorrowedBook records stored on 15,000 pages, and there are 500 different authors. Find out what is the record size for each of the previous relation?, and what is the blocking factor for each relation?
Create a form of the hybrid merge-join method that is appropriate for the situation in which both relations are not physically sorted, but both have a sorted secondary index on the attributes that are to be combined.
Set up relationships (determining foreign keys) bymapping your ER/EER to relations and showing whatare FK and PK in your relations.
Do the tables exhibit referential integrity? Answer yes or no, and then explain your answer. Write NA (Not Applicable) if the table does not have a foreign key. FIGURE P3.17 THE CH03_TRANSCO DATABASE TABLES
What is a cross join? Give an example of its syntax.

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