Question

我在此请求中遇到MYSQL 5.7错误。如何解决此错误？

＃1055 - SELECT列表的表达式＃3不在GROUP BY子句中，并且包含非聚合列＆＃39; test.c.customers_group_id＆＃39;它在功能上不依赖于GROUP BY子句中的列;这与sql_mode = only_full_group_by
不兼容

select  SQL_CALC_FOUND_ROWS  c.customers_firstname, 
                             c.customers_lastname, 
                             c.customers_group_id,
                             sum(op.products_quantity * op.final_price) as ordersum 
from customers c,
     orders_products op,
     orders o
where c.customers_id = o.customers_id 
and o.orders_id = op.orders_id 
group by c.customers_firstname, 
         c.customers_lastname 
order by ordersum DESC

Answer 1

也在group by子句中包含c.customers_group_id

Answer 2

您在c.customers_group_id子句中错过了GROUP BY。

相反，旧式逗号分隔的表格模式可以使用 ANSI JOIN 模式。

以下代码适用于您的情况：

SELECT  SQL_CALC_FOUND_ROWS  c.customers_firstname, 
                             c.customers_lastname, 
                             c.customers_group_id,
                             sum(op.products_quantity * op.final_price) as ordersum 
FROM customers c
JOIN orders o ON o.customers_id = c.customers_id 
JOIN orders_products op ON op.orders_id = o.orders_id
GROUP BY c.customers_firstname, 
         c.customers_lastname,
         c.customers_group_id -- you missed this
ORDER BY ordersum DESC

如何解析SELECT列表不在GROUP BY子句中并包含nonaggregated？

2 个答案: