mysql - mysql为以下案例查找客户

Question

我有一张如下表：

我需要客户满足以下条件。

一个。谁下订单并付清所有款项。即，customer_id：34、42、70

湾。谁下了订单但没有付款。即，customer_id: 57, 80

C。谁下了订单但没有支付其中一些。即customer_id：45、62、65

注意： invoice_no: 0 表示订单未付款。

需要专家的建议。谢谢

Answer 1

案例A

SELECT customer_id 
FROM customers 
GROUP BY customer_id
HAVING MIN(invoice_no) > 0

案例B

SELECT customer_id 
FROM customers 
GROUP BY customer_id
HAVING MAX(invoice_no) = 0

案例C

SELECT customer_id
FROM customers 
GROUP BY customer_id
HAVING MIN(invoice_no) = 0 AND MAX(invoice_no) > 0

Answer 2

你可以试试这个

案例A

   SELECT  customers.* FROM customers  INNER JOIN (  SELECT customer_id , MIN(invoice_no) minInvoice ,MAX(invoice_no) maxinvoice FROM customers  GROUP BY  customer_id ) c
     ON c.customer_id  = customers.customer_id AND c.minInvoice > 0

案例B

SELECT customers .* FROM  customers  INNER JOIN (  SELECT customer_id , MIN(invoice_no) minInvoice ,MAX(invoice_no) maxinvoice FROM  customers  GROUP BY  customer_id) c
    ON c.customer_id  = customers.customer_id AND c.minInvoice = 0 AND c.maxinvoice = 0;

案例C

  SELECT  customers.* FROM customers  INNER JOIN (  SELECT customer_id , MIN(invoice_no) minInvoice ,MAX(invoice_no) maxinvoice FROM customers  GROUP BY  customer_id ) c
     ON c.customer_id  = customers .customer_id AND c.maxinvoice > 0 AND c.mininvoice=0