Combining WHERE and HAVING
You are interested in knowing which countries are bringing in the most revenue for eSymphony. More specifically, you want to list the countries with a total invoice amount of over $100. You have been informed that the data registered in Paris might be incorrect, so you decide to exclude Parisian invoices from your analysis.
To answer this question, you will need to use both WHERE and HAVING to filter the data.
Deze oefening maakt deel uit van de cursus
Introduction to Oracle SQL
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
-- Select the BillingCountry and the total billing amount
SELECT ___, ___(___)
FROM Invoice
-- Group by billing country
___
-- Exclude groups with an invoice amount of more than 100
___