In this lab, you'll practice your knowledge on one-to-many and many-to-many relationships!
You will be able to:
- Query data using one-to-many and many-to-many joins
- Predict the resulting size of one-to-many and many-to-many joins
#Your code here
Return a dataframe with all of the employees including their first name and last name along with the city and state of the office that they work out of (if they have one). Include all employees and order them by their first name, then their last name.
#Your code here
Return a dataframe with all of the customers' first and last names along with details for each of their order numbers, order dates, and statuses.
# Your code here
Return a dataframe with all of the customers' first and last names along with details about their payments' amount and date of payment. Sort these results in descending order by the payment amount.
# Your code here
Return a dataframe with all of the customers' first and last names along with the product names, quantities, and date ordered for each of the customers and each of their orders. Sort these in descending order by the order date.
- Note: This will require joining 4 tables! This can be tricky! Give it a shot, and if you're still stuck, turn to the next section where you'll see how to write subqueries which can make complex queries such as this much simpler!
# Your code here
In this lab, you practiced your knowledge on one-to-many and many-to-many relationships!