如何编写一个sql查询来获得这个输出？

Question

我与follwoing领域的数据库表：

id, loan_no, installment, status 

其中有像

贷款信息，如果贷款有24个分期付款将有24行包含相同loan_no和安装状态这是支付或unpiad 。

所以我想获得所有分期付款status = paid的loan_no。

是否可以写一个查询来获得结果？

Answer 1

试试这个：

SELECT loan_no FROM your_table 
WHERE loan_no NOT IN 
    SELECT DISTINCT loan_no FROM your_table 
    WHERE status = 'unpaid') 
GROUP BY loan_no 

Answer 2

SELECT DISTINCT loan_no FROM loan 
WHERE loan_no NOT IN (SELECT DISTINCT loan_no FROM loan WHERE status = 'unpaid') 

Answer 3

喜欢的东西

select distinct 
     i.loan_no, 
     i.status 
    from 
     info as i 
     left outer join info as i2 
      on i.loan_no = i2.loan_no and i2.status = 'unpaid' 
    where 
     i.status = 'paid' 
     and 
     i2.loan_no is null 
; 

Answer 4

SELECT loan_no FROM table where status = "paid" group by loan_no; 

Answer 5

SELECT A.loan_no FROM (
    SELECT loan_no, COUNT(status) AS installments 
    WHERE status = 'paid' 
    GROUP BY loan_no, status 
) AS A 
WHERE A.installments = 24 

因此，所有的贷款总会有24次付款？如果您想为所有已完成24次付款的所有贷款取消loan_no，那么类似上面的操作将会奏效。

Answer 6

SELECT loan_no FROM YOUR_TABLE 
WHERE id NOT IN (SELECT id FROM YOUR_TABLE WHERE status = 'unpaid') GROUP BY loan_no