Answer
See the explanation
Work Step by Step
To design a relational database containing information about employees of different companies and their salaries, we can create two tables: one for employees and one for salaries. Here's a basic schema for the database:
1. **Employees table:**
- Employee ID (Primary Key)
- First Name
- Last Name
- Company ID (Foreign Key)
2. **Salaries table:**
- Salary ID (Primary Key)
- Employee ID (Foreign Key)
- Salary Amount
- Date
With this schema:
- Each employee will have a unique Employee ID.
- Each company can have multiple employees.
- Each salary entry will be associated with a specific employee.
- We can track the date of each salary entry for historical purposes.
This design avoids redundancies by separating the employee information from the salary information, allowing for flexibility in managing employee data and salary records.
