Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE Financial_transactions (transaction_type VARCHAR, transaction_amount INTEGER)
### Question:
Show the transaction types and the total amount of transactions.
### Answer:
SELECT transaction_type, SUM(transaction_amount) FROM Financial_transactions GROUP BY transaction_type