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Write SQL for a Specific Problem
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Write SQL for a Specific Problem

MediumSQL · PostgreSQL

Problem

Create a SQL to solve one specific problem

Use the customers and orders tables to calculate completed-order metrics for calendar year 2025. Include every customer, including customers without qualifying orders.

Output

  1. One row per customer with customer_name, completed_order_count, completed_amount, and customer_status.
  2. Classify totals of at least 1000 as Priority; classify all other customers as Other.
  3. Order by completed_amount descending, then customer_name ascending.

Schema

customers
ColumnTypeDescription
customer_idPKINTUnique customer identifier
customer_nameVARCHAR(100)Customer name
customer_statusVARCHAR(20)Current customer account status
orders
ColumnTypeDescription
order_idPKINTUnique order identifier
customer_idINTCustomer associated with the order
order_dateDATEDate the order was placed
order_statusVARCHAR(20)Current order state
amountDECIMAL(10,2)Order amount
Tablescustomersorders
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Your question is Write SQL for a Specific Problem. Start with the requirements and the two tables in the Question tab.

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