Multi Table Join — Solution & ExplanationProblems / Multi Table Join / EditorialApproach

Start from orders as the base table.

JOIN to customers on customer_id to get the customer name.

JOIN to products on product_id to get the product name and price.

Compute line_total = quantity * price.

Order by order_id.

Key InsightMulti-table joins are chained sequentially. Each JOIN adds columns from another table. The order of joins doesn't affect the result for INNER JOINs, but starting from the fact table (orders) is a common and readable pattern.Hints

Chain two JOINs: first join orders to customers, then join the result to products.

Each JOIN has its own ON clause with a different key column.

Compute line_total as a derived column using quantity * price.

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