A practical example of merges would be that of looking up customer names from orders. To demonstrate this in pandas, we will use the following two DataFrame objects. One represents a list of customer details and the other represents the orders made by the customers and what day the order was made. They will be related to each other using the CustomerID columns in each:
Now, suppose we would like to ship the orders to the customers. We would need to merge the orders data with the customers detail data ...
