SELECT transaction.tranid AS sales_order,
item.itemid AS item_name,
transactionlines.quantity AS quantity_sold
FROM transaction
INNER JOIN transactionlines
ON transaction.id = transactionlines.transaction
INNER JOIN item
ON transactionlines.item = item.id
WHERE transaction.type = 'SalesOrd'
AND transaction.trandate BETWEEN {today}-90 AND {today};
Combines data from transaction, transactionlines, and item tables using INNER JOIN.
Fetches sales order numbers (tranid), item names (itemid), and quantities sold (quantity).
Filters transactions of type SalesOrd from the last 90 days.