Task: Text to Code
Input (English): Step 1: For each row in Customers table, find the corresponding rows in Customer_Contact_Channels table.
Step 2: find customer_name, date_became_customer of the results of step 1 whose channel_code equals Email
Output (English): SELECT T1.customer_name , T1.date_became_customer FROM Customers AS T1 JOIN Customer_Contact_Channels AS T2 ON T1.customer_id = T2.customer_id WHERE T2.channel_code = "Email"