CREATE TABLE Customers_cards (customer_id VARCHAR(255), card_type_code VARCHAR(255)); CREATE TABLE Customers (customer_id VARCHAR(255), customer_first_name VARCHAR(255), customer_last_name VARCHAR(255))
How many credit cards does customer Blanche Huels have?
    
SQL: SELECT COUNT(*) FROM Customers_cards AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.customer_first_name = "Blanche" AND T2.customer_last_name = "Huels" AND T1.card_type_code = "Credit"