SQL Ground With Having | Dataford Interview Questions

Explain how you would use GROUP BY and HAVING in a SQL query, and when you would choose each.

Using the provided customers and orders tables, write a query that returns customers with at least two completed orders and more than 500 in completed order value.

Output

One row per qualifying customer with customer_id, customer_name, completed_order_count, and total_completed_amount.
Sort by total_completed_amount descending, then customer_id ascending.

Schema

customers

Column	Type	Description
customer_idPK	INT	Unique customer identifier
customer_name	VARCHAR(100)	Customer display name

orders

Column	Type	Description
order_idPK	INT	Unique order identifier
customer_id	INT	Customer associated with the order
status	VARCHAR(20)	Order processing status
amount	NUMERIC(10,2)	Order value

Your question is SQL Ground With Having. Start with the requirements and the two tables in the Question tab.

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Problem