Cryptic MSSQL错误消息

Question

以前的相关主题：Join in Query WHERE clause

我收到了这个错误：

com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near '.'.

我的SQL声明：

SELECT products.id, products.name products.extended_description, products.catalogid, products.image1, products.image2, products.stock, products.price, manufacturer.manufacturer, products.weight 
FROM products 
JOIN manufacturer ON (products.manufacturer = manufacturer.id) 
JOIN product_category ON (product_category.catalogid = products.catalogid) 
JOIN category ON (category.id = product_category.id) 
WHERE category.category_name = ?;

这里有什么问题？我的陈述对我来说是正确的......

Answer 1

您错过了products.name和products.extended_description之间的逗号。它认为products.extended_description是别名。如果它然后放在它周围。 [products.extended_description]。否则请输入缺少的逗号。

SELECT products.id, products.name, products.extended_description, products.catalogid,
    products.image1, products.image2, products.stock, products.price, 
    manufacturer.manufacturer, products.weight 
FROM products 
JOIN manufacturer ON (products.manufacturer = manufacturer.id) 
JOIN product_category ON (product_category.catalogid = product.catalogid) 
JOIN category ON (category.id = product_category.id) 
WHERE category.category_name = ?;

Answer 2

您忘记了products.name

之后的逗号

应该是：

SELECT products.id, products.name, products.extended_description, ...