Table schema:
CREATE TABLE Financial_transactions (account_id VARCHAR); CREATE TABLE Accounts (account_name VARCHAR, account_id VARCHAR)

Question: Show the account id and name with at least 4 transactions.
SQL: SELECT T1.account_id, T2.account_name FROM Financial_transactions AS T1 JOIN Accounts AS T2 ON T1.account_id = T2.account_id GROUP BY T1.account_id HAVING COUNT(*) >= 4