Let's make the relationship between shows and networks N:N (a many-to-many relationship), i.e. each show can be associated with multiple networks, and each network has many shows). First, we need to create a junction table. Do the following, preferably using only one SQL command:a. Create a junction table named `show_network`, with `show_id` and `net_id` as fields.b. Make the primary key of the `show_network` table a composite key, made up of both fields. For syntax help, see here: [https://www.w3schools.com/sql/sql_primarykey.asp](https://www.w3schools.com/sql/sql_primarykey.asp)c. Make two foreign key constraints, one for `show_id` and one for `net_id`, to reference the tables `shows` and `networks` respectively.❖ Take a screenshot now and paste it here. ### MySQL Table Descriptions#### Table: `shows`This table, named `shows`, contains information about various television shows. It includes the following fields:- **ID**: An integer field (11 digits). This is the primary key and is auto-incremented. It cannot be null.- **Title**: A varchar field with a maximum of 80 characters. It cannot be null.- **Num_episodes**: An integer field (11 digits). It cannot be null.- **Country**: A varchar field with a maximum of 60 characters. It cannot be null.- **Start**: An integer field (11 digits) indicating the start year of the show. It cannot be null.- **End**: An integer field (11 digits) indicating the end year of the show. This field can be null.- **net_id**: An integer field (11 digits) that serves as a foreign key, referencing the `networks` table. This field can be null.The table has 7 rows defined in a time span of 0.70 seconds.#### Table: `networks`This table, named `networks`, includes details about television networks. It consists of the following fields:- **id**: An integer field (11 digits). This is the primary key and is auto-incremented. It cannot be null.- **name**: A varchar field with a maximum of 20 characters. This field can be null.The table includes 2 rows and was retrieved in 0.02 seconds.These table descriptions are fundamental for understanding the database structure used to store information about television shows and their respective networks.

Junction table is used while dealing with many-many relationships in SQL database. Example for many…

Let's make the relationship between shows and networks N:N (a many-to-many relationship), i.e. each show can be associated with multiple networks, and each network has many shows). First, we need to create a junc- tion table. Do the following, preferably using only one SQL command: a. Create a junction table named show_network ,with show_id and net_id as fields. b. Make the primary key of the show_network table a composite key, made up of both fields. For syntax help, see here: https://www.w3schools.com/sql/sql primarykey.asp С. Make two foreign key constraints, one for show_id and one for net_id, to reference the tables shows and networks respectively. Take a screenshot now and paste it here.

Let's make the relationship between shows and networks N:N (a many-to-many relationship), i.e. each show can be associated with multiple networks, and each network has many shows). First, we need to create a junc- tion table. Do the following, preferably using only one SQL command: a. Create a junction table named show_network ,with show_id and net_id as fields. b. Make the primary key of the show_network table a composite key, made up of both fields. For syntax help, see here: https://www.w3schools.com/sql/sql primarykey.asp С. Make two foreign key constraints, one for show_id and one for net_id, to reference the tables shows and networks respectively. Take a screenshot now and paste it here.

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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Concept explainers

SQL

SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.

Queries

A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.

Question

Let's make the relationship between shows and networks N:N (a many-to-many relationship), i.e. each show can be associated with multiple networks, and each network has many shows). First, we need to create a junction table. Do the following, preferably using only one SQL command:

a. Create a junction table named `show_network`, with `show_id` and `net_id` as fields.

b. Make the primary key of the `show_network` table a composite key, made up of both fields. For syntax help, see here: [https://www.w3schools.com/sql/sql_primarykey.asp](https://www.w3schools.com/sql/sql_primarykey.asp)

c. Make two foreign key constraints, one for `show_id` and one for `net_id`, to reference the tables `shows` and `networks` respectively.

❖ Take a screenshot now and paste it here.

### MySQL Table Descriptions

#### Table: `shows`
This table, named `shows`, contains information about various television shows. It includes the following fields:

- **ID**: An integer field (11 digits). This is the primary key and is auto-incremented. It cannot be null.
- **Title**: A varchar field with a maximum of 80 characters. It cannot be null.
- **Num_episodes**: An integer field (11 digits). It cannot be null.
- **Country**: A varchar field with a maximum of 60 characters. It cannot be null.
- **Start**: An integer field (11 digits) indicating the start year of the show. It cannot be null.
- **End**: An integer field (11 digits) indicating the end year of the show. This field can be null.
- **net_id**: An integer field (11 digits) that serves as a foreign key, referencing the `networks` table. This field can be null.

The table has 7 rows defined in a time span of 0.70 seconds.

#### Table: `networks`
This table, named `networks`, includes details about television networks. It consists of the following fields:

- **id**: An integer field (11 digits). This is the primary key and is auto-incremented. It cannot be null.
- **name**: A varchar field with a maximum of 20 characters. This field can be null.

The table includes 2 rows and was retrieved in 0.02 seconds.

These table descriptions are fundamental for understanding the database structure used to store information about television shows and their respective networks.

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