Just let me know what to write for the SQL theory: Question: Write a query to display the first name of the employee and the count of the dependents that the employee has for only those employees that have more than 1 dependents. Rename the count column as ‘Dependent Count’. Order by the dependent count in the descending order. (Hint: Use Table joining, GROUP BY and HAVING) 2. Write an SQL Query to list the name(s) and address(es) of employees who work at the department named- 'Human Resources’? (Hint: Use Table Joining)
Just let me know what to write for the SQL theory: Question: Write a query to display the first name of the employee and the count of the dependents that the employee has for only those employees that have more than 1 dependents. Rename the count column as ‘Dependent Count’. Order by the dependent count in the descending order. (Hint: Use Table joining, GROUP BY and HAVING) 2. Write an SQL Query to list the name(s) and address(es) of employees who work at the department named- 'Human Resources’? (Hint: Use Table Joining)
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
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Just let me know what to write for the SQL theory:
Question:
- Write a query to display the first name of the employee and the count of the dependents that the employee has for only those employees that have more than 1 dependents. Rename the count column as ‘Dependent Count’. Order by the dependent count in the descending order.
(Hint: Use Table joining, GROUP BY and HAVING)
2. Write an SQL Query to list the name(s) and address(es) of employees who work at the department named- 'Human Resources’? (Hint: Use Table Joining)
Transcribed Image Text:The image is a relational database schema, illustrating the structure of multiple related tables. Each table contains specific attributes, with primary keys underlined. Below is a detailed explanation of each table:
1. **Employee Table**:
- **Primary Key**: `empNo`
- **Attributes**:
- `firstName`: The first name of the employee.
- `lastName`: The last name of the employee.
- `address`: The home address of the employee.
- `DOB`: The date of birth of the employee.
- `sex`: The gender of the employee.
- `position`: The job position of the employee.
- `deptNo`: The department number where the employee works (foreign key).
2. **Department Table**:
- **Primary Key**: `deptNo`
- **Attributes**:
- `deptName`: The name of the department.
- `mgrEmpNo`: The employee number of the manager (foreign key).
3. **Project Table**:
- **Primary Key**: `projNo`
- **Attributes**:
- `projName`: The name of the project.
- `deptNo`: The department number responsible for the project (foreign key).
4. **WorksOn Table**:
- **Composite Primary Key**: (`empNo`, `projNo`)
- **Attributes**:
- `hoursWorked`: The number of hours an employee worked on a project.
5. **Dependent Table**:
- **Composite Primary Key**: (`empNo`, `Dependent_name`)
- **Attributes**:
- `Sex`: The gender of the dependent.
- `Bdate`: The birth date of the dependent.
- `Relationship`: The relationship of the dependent to the employee.
Each component interrelates to maintain the integrity and structure of the organizational data represented within the database.
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