Modify your query from Challenge 1 to show only the top 3 (or a chosen number) categories where you spend the most
Question
Modify your query from Challenge 1 to show only the top 3 (or a chosen number) categories where you spend the most.
Solution
It seems like you're asking for a modification to a SQL query from a previous challenge. Although you didn't provide the original query, I'll assume it's a simple query selecting expenses from different categories. Here's how you could modify such a query to show only the top 3 categories where you spend the most:
SELECT category, SUM(amount) as total_amount
FROM expenses
GROUP BY category
ORDER BY total_amount DESC
LIMIT 3;
Here's a step-by-step explanation:
-
SELECT category, SUM(amount) as total_amount
: This selects the category and the total amount of expenses in each category. TheSUM(amount)
function adds up all the expenses in each category. -
FROM expenses
: This specifies the table where the data is coming from, in this case, anexpenses
table. -
GROUP BY category
: This groups the results by the category, so you get a sum of expenses for each category. -
ORDER BY total_amount DESC
: This orders the results by the total amount of expenses in descending order, so the categories where you spend the most come first. -
LIMIT 3
: This limits the results to the top 3 categories. You can replace3
with any number to get the top N categories.
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