Research projects of Pewlett Hackard from 1980 to 2000 and analyze data.
Data modeling diagram with the relationship between the tables in the database
#### Data Analysis
Questions about employee's:
1. List the following details of each employee: employee number, last name, first name, sex, and salary.
2. List first name, last name, and hire date for employees who were hired in 1986.
3. List the manager of each department with the following information: department number, department name, the manager's employee number, last name, first name.
4. List the department of each employee with the following information: employee number, last name, first name, and department name.
5. List first name, last name, and sex for employees whose first name is "Hercules" and last names begin with "B."
6. List all employees in the Sales department, including their employee number, last name, first name, and department name.
7. List all employees in the Sales and Development departments, including their employee number, last name, first name, and department name.
8. In descending order, list the frequency count of employee last names, i.e., how many employees share each last name.
2. Create a histogram to visualize the most common salary ranges for employees.
3. Create a bar chart of average salary by title.
## Epilogue
Evidence in hand, you march into your boss's office and present the visualization. With a sly grin, your boss thanks you for your work. On your way out of the office, you hear the words, "Search your ID number." You look down at your badge to see that your employee ID number is 499942. HAPPY APRIL FOOL IN NOVEMBER-
CONTENT OF THIS PROJECT
* Imnage file of ERD. * .sql` file with queries.
* Jupyter Notebook with visualizations .