Task: Text to Code
Input (English): Step 1: For each row in Orders table, find the corresponding rows in Invoices table.
Step 2: find date_order_placed, Invoices's order_id of the results of step 1
Output (English): SELECT T1.date_order_placed , T2.order_id FROM Orders AS T1 JOIN Invoices AS T2 ON T1.order_id = T2.order_id