ZuoTi.Pro
Question

Show the ERD for the following piece of the problem statements. Show only entities (or dependent...

Show the ERD for the following piece of the problem statements. Show only entities (or dependent entities), relationships, multiplicities, primary keys and foreign keys. Create an appropriate primary key if necessary. You don’t need to specify other attributes. If a relationship is M:N, then show two diagrams: both the M:N relationship diagram and its decomposition into two 1:N relationships.

(a) A book has one or many keywords and one keyword can be used in zero or many books.

(b) A file drawer has zero or many folders. A folder is stored only in one file drawer and each folder is identified by a sequence line number within each file drawer (e.g, the 1st folder, 2nd folder in the first drawer, and then the 1st folder, 2nd folder in the second drawer, etc.)

engineering   Computer-Science   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
Show the ERD for the following piece of the problem statements. Show only entities (or dependent...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • In the box below, draw a relational model(not ERD) that illustrates the date represented by the...

    In the box below, draw a relational model(not ERD) that illustrates the date represented by the ERD described. Specify all primary and foreign keys. The ERD contains three entities: The first entity is called STUDENT and contains STUDENTID, StudentLastName, and StudentEmail as attributes. The StudentID attribute is the primary key for the STUDENT entity. The second entity is called CLASS and contains classID, className, and classcredit as attributes. The ClassID attribute is the primary key for the CLASS entity The...

  • QUESTION 1 1. Use the following business rules to draw the fully labeled Crow's Foot ERD...

    QUESTION 1 1. Use the following business rules to draw the fully labeled Crow's Foot ERD in Visio. The diagram must include all entities, attributes, and relationships. Primary keys and foreign keys must be clearly identified on the diagram. Write all appropriate connectivities and cardinalities on the ERD. a). Each city may have many sport teams. The number of teams is limited to 20 per city. b). Each team belongs to one and only city. c). Each team has at...

  • QUESTION 1 1. Use the following business rules to draw the fully labeled Crow's Foot ERD...

    QUESTION 1 1. Use the following business rules to draw the fully labeled Crow's Foot ERD in Visio. The diagram must include all entities, attributes, and relationships. Primary keys and foreign keys must be clearly identified on the diagram. Write all appropriate connectivities and cardinalities on the ERD. a). Each city may have many sport teams. The number of teams is limited to 20 per city. b). Each team belongs to one and only city. c). Each team has at...

  • Create an Entity-Relationship Diagram (ERD). In the ERD include the following:

    Create an Entity-Relationship Diagram (ERD).In the ERD include the following: entities primary keys for all entities attributes - use "good" names for attributes, use only single-valued attributes relationships - use Crow's foot or UML notation; name relationships that could be ambiguous cardinality - minimum (optional/mandatory) and maximum (one or many) on both ends of the relationship - use reasonable assumptions if there is insufficient information in the descriptionStudent/Course registration system for a universityStudents have a unique identification number, first name, middle initial, last name, year...

  • QUESTION 1 What is the most common relationship within a relational database? Select the best answer...

    QUESTION 1 What is the most common relationship within a relational database? Select the best answer from the following. One-To-One relationship. o One-To-Many relationship. Many-To-Many relationship. Zero-To-Zero relationship. QUESTION 2 What is an "entity'? Select the best answer from the following. An entity, for our purposes, is the same as a table in the database. An entity represents one of the columns in an individual table. There are no entities in a relational database. Entities are only part of NoSQL...

  • Name Use complete sentences if possible The following StudentGrade relation (table) stores the Student, Major, and Course information Each student has unique StudentID. Assume that a student has...

    Name Use complete sentences if possible The following StudentGrade relation (table) stores the Student, Major, and Course information Each student has unique StudentID. Assume that a student has only one major. One student can take multiple courses in one SemesterYear. One course can be taken by many students in each SemesterYear. Given values for StudentID, Course Number, and SemesterYear, one can determine all the rest of values for a record. However only Grade is functionally dependent on StudentlD, CourseNumber and...

  • Create an ERD using Lucid Chart for the following description. Be sure to include all necessary...

    Create an ERD using Lucid Chart for the following description. Be sure to include all necessary entities, attributes, and correct cardinality in relationships between entities. Don’t forget foreign keys. You have been asked to build a database for a technology company called TechNow. The company owner needs to keep track of the customers that buy their products, the employees that work at TechNow, the offices that the employees use, the vendors that provide them with products, and the products themselves....

  • This is about ERD. Question: The Gotham Buildings Department (GBD) is a city agency that tracks...

    This is about ERD. Question: The Gotham Buildings Department (GBD) is a city agency that tracks all the buildings within a metropolitan area in the northeast United States. The GBD maintains data about the location, size, and construction date of each building. It also keeps track of specific renovations made to each building over time, and also demolition of a building, if that occurs. For each building, the GBD keeps data about the building's lot number, which is unique, the...

  • Database design Part One (Conceptual Database Design) As a database developer, you have been asked to...

    Database design Part One (Conceptual Database Design) As a database developer, you have been asked to design a new database the operation of the new project within the Liverpool John Moores University (LJMU). LJMU i planning to deliver a number of professional training courses in Al. Each course is delivered by one member of staff at LJMU's Training Centre; each staff is allocated a staff number. The policy of LJMU is to record the start working date of each staff,...

  • In this phase of the project you will create an ERD based upon the following requirements and bus...

    In this phase of the project you will create an ERD based upon the following requirements and business rules. Limit your ERD to entities and relationships based on the business rules showed here. In other words, do not add realism to your design by expanding or refining the business rules. However, make sure you include all attributes needed that would permit the model to be successfully implemented, including all primary and foreign keys. 1. Trinity College (TC) is divided into...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT