Question

我想在我编写的联接中使用order by子句，但是它显示了一个错误，我无法解决此问题：

SELECT 
    products_details.*, master_category.title as cat1 
FROM  
    products_details 
JOIN 
    master_category ON products_details.product_category = master_category.id 
ORDER BY 
    products_details.product_name 
WHERE
    1 = 1 
    AND products_details.status != 2;

有人可以帮忙吗？

Answer 1

WHERE在ORDER BY之前：

SELECT
    pd.*,
    mc.title AS cat1 
FROM products_details pd
INNER JOIN master_category mc
    ON pd.product_category = mc.id
WHERE
    pd.status != 2
ORDER BY
    pd.product_name;

此外，我在查询表的过程中引入了别名，使其更易于阅读。

Answer 2

您的order by子句必须在where条件之后。如下所示：-

    SELECT 
        products_details.*, master_category.title as cat1 
    FROM  
        products_details 
    JOIN 
        master_category ON products_details.product_category = master_category.id 
    WHERE
        1 = 1  AND products_details.status != 2
    ORDER BY 
        products_details.product_name;

我无法在我的SQL语句中解决此错误

2 个答案: