What is the relationship between a table of Movies and a table of ActorsActresses and how might it be implemented in a relational database?

Expert Solution

Given that one movie can have many actors or actresses and one actor or actress can star in many movies, the two entities have a many-to-many relationship. To implement this data in a relational database a third table, a junction table, would have to be established that was on the “many” side of a one-to-many relationship to both the Movies and ActorActresses tables. The junction table might be called Castings.

Implement many-to-many relationship with junction table "Castings" linking Movies and ActorActresses tables.

Junaid answered 9 months ago

Describe what a database system is and how it is used. What is a relational database...

Describe what a database system is and how it is used. What is a relational database system and how used in a company to benefit an organization? What does it mean to run a query?

What is Relational Database in healthcare? Provide examples and explain how it works.

tableA is a table in a relational database with a composite prime key consisting of fields...

tableA is a table in a relational database with a composite prime key consisting of fields F1 and F2. You have determined that tableA is 1NF. There are four other fields in tableA. Two of them, F10 and F12, are functionally determined by F1. The other two, F50 and F55, are functionally determined by F2. Because all fields are functionally determined by at least a portion of the key, is tableA 2NF? If you believe the table is not yet...

What are some of the advantages of a relational database system?

tableA is a table in a relational database with a composite prime key. You have determined...

tableA is a table in a relational database with a composite prime key. You have determined that the table is 2NF. Owing to the fact that it is 2NF and the key is composite, is it automatically 3NF? Explain your answer. (4 points) Lack of normalization of database tables may cause update, delete, and/or insert anomalies. You have a 2NF table, tableA, in a relational database. Give an example of an anomaly to which tableA might still be subject. Give...

Database - Relational Theory The state of a table or relation relates to its current content....

Database - Relational Theory The state of a table or relation relates to its current content. Consider the formal terminology of the relational model. 1) Which descriptive term of a relation applies to the state of a relation? 2) Which descriptive term of a relation is not affected a change in the state of the relation? 3) In addition to identifying these terms, provide a brief definition of each of term.

Compare the Data Modeling difference between relational database and NoSQL MongoDB.

how can object -relational database be used to implement an SDBMS?

What is a relation? What is a relational DB or database? What is an unnormalized relation?...

What is a relation? What is a relational DB or database? What is an unnormalized relation? Is it a relation according to the definition of the word relation? What is a primary key? What is the primary key for each table in the Colonial Adventure Tours database shown in Figures 1-15, 1-16, 1-17, 1-18, and 1-19 in Chapter 1?

What RAD?What is a relational database?What are the other types of DBMS?What is...

What RAD?What is a relational database?What are the other types of DBMS?What is a composite key?What is a primary key?What is a surrogate key?What is a foreign key?

Question