Question

当我运行此SQL查询时，它会忽略日期WHERE。

任何人都可以解释我做错了什么吗？尝试了一个子查询，但这也不起作用！ SQL新手，但我觉得这是一个相对简单的查询有点难过。

SELECT c.Customer_No, c.Name, c.Lat, c.Lon, o.Order_ref, o.Currency, 
    o.Salesperson_code, o.Date, sum(o.Amount) as order_total, 
    count(DISTINCT o.Order_ref) as order_count  
FROM navision_orders o, navision_customers c 
WHERE c.Customer_No = o.Customer_No
    and o.Date > '2013-01-09' 
    and o.Date < '2014-01-01' 
GROUP BY c.Name
ORDER BY order_total DESC
LIMIT 20

Answer 1

您正在使用WHERE子句，因为您应该使用JOIN子句。所以试试这个：

FROM navision_orders o
INNER JOIN navision_customers c ON c.Customer_No = o.Customer_No
Where o.Date > '2013-01-09' and o.Date < '2014-01-01'

SQL忽略WHERE语句

1 个答案: