The image displays the schema of a relational database with multiple tables. Here is a detailed description of each table and its fields:1. **Book Table:** - **isbn**: varchar - The International Standard Book Number for the book. - **name**: varchar - The name of the book. - **type**: varchar - The genre or type of the book. - **pub_id**: int - A foreign key that links to the Publisher table. - **price**: decimal - The price of the book. - **advance**: decimal - The advance amount paid. - **ytd_sales**: int - Year-to-date sales figures. - **pubdate**: date - The publication date of the book.2. **Publisher Table:** - **pub_id**: int - The unique identifier for the publisher. - **name**: varchar(40) - The name of the publisher. - **address**: varchar(40) - The address of the publisher. - **city**: varchar(20) - The city where the publisher is located. - **state**: varchar(2) - The state code of the publisher's location.3. **BookAuthor Table:** - **author_id**: int - A foreign key that links to the Author table. - **isbn**: varchar - A foreign key linking back to the Book table. - **author_order**: int - The order of the author's name if multiple authors exist. - **royaltyshare**: decimal - The author's share in terms of royalties.4. **Author Table:** - **author_id**: int - The unique identifier for authors. - **ssn**: varchar - Social Security Number of the author. - **lastname**: varchar - The author's last name. - **firstname**: varchar - The author's first name. - **phone**: varchar - The contact number of the author. - **address**: varchar - The author's address. - **city**: varchar - The city where the author resides. - **state**: varchar - The state code of the author's location. - **zip**: varchar - The ZIP code of the author's address.5. **BookEditor Table:** - **editor_id**: int - A foreign key that links to the Editor table 10. Write a query to list the first name and last name of all authors. Concatenate the first and last names so that the result set has only one column. If an author and editor are the same person (same name), show them only once. *Hint: UNION.*

We need to select the name of both editor and author and do the union. The query for the same as per…

.Write a query to list the first name and last name of all authors. Concatenate the first and last names so that the result set has only one column. If an author and editor are the same person (same name), show them only once. Hint: UNION.

.Write a query to list the first name and last name of all authors. Concatenate the first and last names so that the result set has only one column. If an author and editor are the same person (same name), show them only once. Hint: UNION.

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

Intermediate SQL Concepts

A query is a request for data or information from one or more database tables. This information could be presented in the form of pictorials, graphs, or complicated findings which helps in easy interpretation. Structured Query Language (SQL) is the most widely used programming language for retrieving and organizing data from relational databases. Collection of tables with rows and columns is referred to as a database. SQL is the language of databases. It makes it easier to extract specific data from databases, which can then be used for analysis.

Question

The image displays the schema of a relational database with multiple tables. Here is a detailed description of each table and its fields:

1. **Book Table:**
- **isbn**: varchar - The International Standard Book Number for the book.
- **name**: varchar - The name of the book.
- **type**: varchar - The genre or type of the book.
- **pub_id**: int - A foreign key that links to the Publisher table.
- **price**: decimal - The price of the book.
- **advance**: decimal - The advance amount paid.
- **ytd_sales**: int - Year-to-date sales figures.
- **pubdate**: date - The publication date of the book.

2. **Publisher Table:**
- **pub_id**: int - The unique identifier for the publisher.
- **name**: varchar(40) - The name of the publisher.
- **address**: varchar(40) - The address of the publisher.
- **city**: varchar(20) - The city where the publisher is located.
- **state**: varchar(2) - The state code of the publisher's location.

3. **BookAuthor Table:**
- **author_id**: int - A foreign key that links to the Author table.
- **isbn**: varchar - A foreign key linking back to the Book table.
- **author_order**: int - The order of the author's name if multiple authors exist.
- **royaltyshare**: decimal - The author's share in terms of royalties.

4. **Author Table:**
- **author_id**: int - The unique identifier for authors.
- **ssn**: varchar - Social Security Number of the author.
- **lastname**: varchar - The author's last name.
- **firstname**: varchar - The author's first name.
- **phone**: varchar - The contact number of the author.
- **address**: varchar - The author's address.
- **city**: varchar - The city where the author resides.
- **state**: varchar - The state code of the author's location.
- **zip**: varchar - The ZIP code of the author's address.

5. **BookEditor Table:**
- **editor_id**: int - A foreign key that links to the Editor table

10. Write a query to list the first name and last name of all authors. Concatenate the first and last names so that the result set has only one column. If an author and editor are the same person (same name), show them only once. *Hint: UNION.*

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