<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Write a SQL query to display the customer name, contact number and purchase amount for customers who made a purchase above $500.
Table name: Customer<|im_end|>
<|im_start|>assistant
SELECT customer_name, contact_number, purchase_amount 
FROM Customer 
WHERE purchase_amount > 500;<|im_end|>
