text: CREATE TABLE staff (customer_details VARCHAR, staff_details VARCHAR); CREATE TABLE customers (customer_details VARCHAR, staff_details VARCHAR) -- Find the names of all the customers and staff members. SELECT customer_details FROM customers UNION SELECT staff_details FROM staff CREATE TABLE policies (policy_type_code VARCHAR) -- Find the number of records of each policy type and its type code. SELECT policy_type_code, COUNT(*) FROM policies GROUP BY policy_type_code CREATE TABLE customers (customer_details VARCHAR, customer_id VARCHAR); CREATE TABLE policies (customer_id VARCHAR) -- Find the name of the customer that has been involved in the most policies. SELECT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id GROUP BY t2.customer_details ORDER BY COUNT(*) DESC LIMIT 1 CREATE TABLE claims_processing_stages (claim_status_description VARCHAR, claim_status_name VARCHAR) -- What is the description of the claim status "Open"? SELECT claim_status_description FROM claims_processing_stages WHERE claim_status_name = "Open" CREATE TABLE claims_processing (claim_outcome_code VARCHAR) -- How many distinct claim outcome codes are there? SELECT COUNT(DISTINCT claim_outcome_code) FROM claims_processing CREATE TABLE customers (customer_details VARCHAR, customer_id VARCHAR); CREATE TABLE policies (start_date INTEGER); CREATE TABLE policies (customer_id VARCHAR, start_date INTEGER) -- Which customer is associated with the latest policy? SELECT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id WHERE t1.start_date = (SELECT MAX(start_date) FROM policies)