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SELECT orders.order_id, customers.customer_name FROM orders INNER JOIN customers ON orders.customer_id = customers.customer_id; Subqueries: A query nested inside another query (in SELECT , FROM , or WHERE ).

FUNCTION(column) OVER (PARTITION BY group_column ORDER BY order_column) the complete sql bootcamp 2020: go from zero to hero videos

WITH high_value_orders AS ( SELECT customer_id, SUM(amount) AS total FROM orders GROUP BY customer_id HAVING SUM(amount) > 1000 ) SELECT * FROM high_value_orders; The CASE expression works like an if-then-else statement. SELECT orders