找到银行中拥有账户但不是银行贷款的所有客户

Question

我有一些表格：

"branch" table(branch_name, branch_city, assets)
"customer" table(customer_name, customer_street, customer_city)
"account" table (account_number, branch_name, balance)
"loan"table (loan_number, branch_name, amount)
"depositor"table (customer_name, account_number)
"borrower" table (customer_name, loan_number)

现在我想找到所有有帐户但没有贷款的客户 我试过

SELECT customer_name 
FROM depositor 
MINUS 
SELECT customer_name 
FROM borrower

但它显示错误1064

Answer 1

我得到了答案

SELECT DISTINCT customer_name FROM depositor WHERE customer_name NOT IN（SELECT customer_name FROM borrower）;