读书笔记----WIDTH_BUCKET用法_StudySQLHardly的专栏_width_bucket

SELECT customer_id, cust_last_name, credit_limit, 
   WIDTH_BUCKET(credit_limit, 100, 5000, 10) "Credit Group"
   FROM customers WHERE nls_territory = 'SWITZERLAND'
   ORDER BY "Credit Group";
SELECT customer_id, cust_last_name, credit_