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Display the result in a new column name “Remaining Balance”. Include the project number and project name in the result output.

Display the result in a new column name “Remaining Balance”. Include the project number and project name in the result output.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Based on the ERD below, for each project calculate the difference between the project value and the project balance. Display the result in a new column name “Remaining Balance”. Include the project number and project name in the result output.

The image depicts a database entity-relationship (ER) diagram that includes four entities: JOB, EMPLOYEE, ASSIGNMENT, and PROJECT. Each entity contains a set of attributes, and primary keys are represented with a key icon. The relationships between the entities are shown with lines connecting them, and cardinality is indicated with symbols. ### Entities and Attributes: 1. **JOB** - **Primary Key:** JOB_CODE - Attributes: - JOB_DESCRIPTION - JOB_CHG_HOUR - JOB_LAST_UPDATE 2. **EMPLOYEE** - **Primary Key:** EMP_NUM - Attributes: - EMP_LNAME (Last Name) - EMP_FNAME (First Name) - EMP_INITIAL - EMP_HIREDATE - JOB_CODE (Foreign Key) - EMP_YEARS 3. **ASSIGNMENT** - **Primary Key:** ASSIGN_NUM - Attributes: - ASSIGN_DATE - PROJ_NUM (Foreign Key) - EMP_NUM (Foreign Key) - ASSIGN_JOB - ASSIGN_CHG_HR - ASSIGN_HOURS - ASSIGN_CHARGE 4. **PROJECT** - **Primary Key:** PROJ_NUM - Attributes: - PROJ_NAME - PROJ_VALUE - PROJ_BALANCE - EMP_NUM (Foreign Key) ### Relationships: - **JOB to EMPLOYEE:** - One-to-Many Relationship (1 to ∞) - A job can be associated with multiple employees. - **EMPLOYEE to ASSIGNMENT:** - One-to-Many Relationship (1 to ∞) - An employee can have multiple assignments. - **PROJECT to ASSIGNMENT:** - One-to-Many Relationship (1 to ∞) - A project can include multiple assignments. The diagram visually represents how these entities interact with each other within a database, emphasizing the relationships and dependencies between various data elements. It serves to illustrate the structure of a database for managing jobs, employees, assignments, and projects.
Transcribed Image Text:The image depicts a database entity-relationship (ER) diagram that includes four entities: JOB, EMPLOYEE, ASSIGNMENT, and PROJECT. Each entity contains a set of attributes, and primary keys are represented with a key icon. The relationships between the entities are shown with lines connecting them, and cardinality is indicated with symbols. ### Entities and Attributes: 1. **JOB** - **Primary Key:** JOB_CODE - Attributes: - JOB_DESCRIPTION - JOB_CHG_HOUR - JOB_LAST_UPDATE 2. **EMPLOYEE** - **Primary Key:** EMP_NUM - Attributes: - EMP_LNAME (Last Name) - EMP_FNAME (First Name) - EMP_INITIAL - EMP_HIREDATE - JOB_CODE (Foreign Key) - EMP_YEARS 3. **ASSIGNMENT** - **Primary Key:** ASSIGN_NUM - Attributes: - ASSIGN_DATE - PROJ_NUM (Foreign Key) - EMP_NUM (Foreign Key) - ASSIGN_JOB - ASSIGN_CHG_HR - ASSIGN_HOURS - ASSIGN_CHARGE 4. **PROJECT** - **Primary Key:** PROJ_NUM - Attributes: - PROJ_NAME - PROJ_VALUE - PROJ_BALANCE - EMP_NUM (Foreign Key) ### Relationships: - **JOB to EMPLOYEE:** - One-to-Many Relationship (1 to ∞) - A job can be associated with multiple employees. - **EMPLOYEE to ASSIGNMENT:** - One-to-Many Relationship (1 to ∞) - An employee can have multiple assignments. - **PROJECT to ASSIGNMENT:** - One-to-Many Relationship (1 to ∞) - A project can include multiple assignments. The diagram visually represents how these entities interact with each other within a database, emphasizing the relationships and dependencies between various data elements. It serves to illustrate the structure of a database for managing jobs, employees, assignments, and projects.
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