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ER diagram between the PROMOTION and the BOOKS tables. What kind of relationships do you think it is

ER diagram between the PROMOTION and the BOOKS tables. What kind of relationships do you think it is

Database System Concepts
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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However, there IS a relationship depicted in the ER diagram between the PROMOTION and the BOOKS tables. What kind of relationships do you think it is? Which commands did you use and what the results . you see?
### JustLee Books Database: Table Structures After Normalization #### Figure 1-5 The figure illustrates the table structures of the JustLee Books database after the normalization process. The tables include information about customers, orders, books, book authors, publishers, and promotions. This normalized structure ensures data is organized efficiently, eliminating redundancy and ensuring data integrity. The relationships between tables are shown through connecting lines, representing foreign key associations. #### Table Structures 1. **CUSTOMERS** - **Attributes:** - `Customer#` (Primary Key) - `Lastname` - `Firstname` - `Email` - `Address` - `City` - `State` - `Zip` - `Referred` - `Region` 2. **ORDERS** - **Attributes:** - `Order#` (Primary Key) - `Customer#` (Foreign Key, linked to CUSTOMERS table) - `Orderdate` - `Shipdate` - `Shipstreet` - `Shipcity` - `Shipstate` - `Shipzip` - `Shipcost` 3. **ORDERITEMS** - **Attributes:** - `Order#` (Primary Key, Foreign Key linked to ORDERS table) - `Item#` (Primary Key) - `ISBN` (Foreign Key, linked to BOOKS table) - `Quantity` - `Paideach` 4. **BOOKS** - **Attributes:** - `ISBN` (Primary Key) - `Title` - `Pubdate` - `PubID` (Foreign Key, linked to PUBLISHER table) - `Cost` - `Retail` - `Discount` - `Category` 5. **BOOKAUTHOR** - **Attributes:** - `ISBN` (Primary Key, Foreign Key linked to BOOKS table) - `AuthorID` (Primary Key, Foreign Key linked to AUTHOR table) 6. **AUTHOR** - **Attributes:** - `AuthorID` (Primary Key) - `Lname` - `Fname` 7. **PUBLISHER** - **Attributes:** - `PubID` (Primary Key) - `Name` - `Contact` - `Phone` 8. **PROMOTION** -
Transcribed Image Text:### JustLee Books Database: Table Structures After Normalization #### Figure 1-5 The figure illustrates the table structures of the JustLee Books database after the normalization process. The tables include information about customers, orders, books, book authors, publishers, and promotions. This normalized structure ensures data is organized efficiently, eliminating redundancy and ensuring data integrity. The relationships between tables are shown through connecting lines, representing foreign key associations. #### Table Structures 1. **CUSTOMERS** - **Attributes:** - `Customer#` (Primary Key) - `Lastname` - `Firstname` - `Email` - `Address` - `City` - `State` - `Zip` - `Referred` - `Region` 2. **ORDERS** - **Attributes:** - `Order#` (Primary Key) - `Customer#` (Foreign Key, linked to CUSTOMERS table) - `Orderdate` - `Shipdate` - `Shipstreet` - `Shipcity` - `Shipstate` - `Shipzip` - `Shipcost` 3. **ORDERITEMS** - **Attributes:** - `Order#` (Primary Key, Foreign Key linked to ORDERS table) - `Item#` (Primary Key) - `ISBN` (Foreign Key, linked to BOOKS table) - `Quantity` - `Paideach` 4. **BOOKS** - **Attributes:** - `ISBN` (Primary Key) - `Title` - `Pubdate` - `PubID` (Foreign Key, linked to PUBLISHER table) - `Cost` - `Retail` - `Discount` - `Category` 5. **BOOKAUTHOR** - **Attributes:** - `ISBN` (Primary Key, Foreign Key linked to BOOKS table) - `AuthorID` (Primary Key, Foreign Key linked to AUTHOR table) 6. **AUTHOR** - **Attributes:** - `AuthorID` (Primary Key) - `Lname` - `Fname` 7. **PUBLISHER** - **Attributes:** - `PubID` (Primary Key) - `Name` - `Contact` - `Phone` 8. **PROMOTION** -
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