SELECT transaction_type_code FROM TRANSACTIONS GROUP BY transaction_type_code ORDER BY COUNT(*) ASC LIMIT 1
Show the transaction type code that occurs the fewest times.
SELECT transaction_type_code FROM TRANSACTIONS GROUP BY transaction_type_code ORDER BY COUNT ( * ) ASC LIMIT 1
select transaction_type_code from transactions group by transaction_type_code order by count ( * ) asc limit value
Show the transaction type code that occurs the fewest times .