Design the following database schema containing three tables:
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department:
- id - INT PRIMARY KEY
- name - VARCHAR(30) to hold department name
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role:
- id - INT PRIMARY KEY
- title - VARCHAR(30) to hold role title
- salary - DECIMAL to hold role salary
- department_id - INT to hold reference to department role belongs to
-
employee:
- id - INT PRIMARY KEY
- first_name - VARCHAR(30) to hold employee first name
- last_name - VARCHAR(30) to hold employee last name
- role_id - INT to hold reference to role employee has
- manager_id - INT to hold reference to another employee that manager of the current employee. This field may be null if the employee has no manager
Command-line application that allows you to:
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Add departments, roles, employees
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View departments, roles, employees
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Update employee roles
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Update employee managers
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View employees by manager
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Delete departments, roles, and employees
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View the total utilized budget of a department -- ie the combined salaries of all employees in that department
NPM packages:
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MySQL NPM package to connect to your MySQL database and perform queries.
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InquirerJs NPM package to interact with the user via the command-line.
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console.table to print MySQL rows to the console. There is a built-in version of
console.table, but the NPM package formats the data a little better for our purposes.