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MANCHESTER -CLASS-5-Miguel-Cabral-SQL-Coursework-WEEK-2 #189
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savagematt
reviewed
Feb 25, 2023
| 3. Retrieve all the products whose name contains the word `socks` | ||
| A = SELECT * FROM products WHERE lower(product_name) LIKE '%socks%'; |
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Excellent that you've made the casing match on both sides, and correctly used LIKE with wildcards % at each end
| 8. Retrieve all orders, including order items, from customer ID `1`. Include order id, reference, date and total cost (calculated as quantity * unit price). | ||
| A = SELECT orders.id, orders.order_reference, orders.order_date, order_items.quantity * product_availability.unit_price AS total_cost |
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Putting an explicit name for the calculated column as total_cost is good!
You've split the rest of the query on to one line per clause, which makes this easy to read. Sometimes it's good to split each field in the select clause into a separate line as well so I can quickly see exactly what fields are returned, without my eyes need to scan past commas.
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