在sql-server-2005上工作
SELECT A.specific_customization_id ,
A.customization_id ,
A.customization_value ,
A.customization_price ,
A.customization_cost ,
A.customization_code ,
A.customization_check ,
A.sort_order ,
A.option_code ,
A.product_id ,
A.image_1 ,
A.image_2 ,
A.MainProductID ,
A.customization_product_id ,
A.inactive ,
A.customization_description ,
A.customization_select ,
A.UOM ,
A.allow_recur ,
auto_reorder = CASE A.MainProductID --it's an int type column
WHEN NULL THEN A.allow_recur
ELSE ( SELECT allow_recur
FROM wc_product
WHERE product_id = A.MainProductID
)
END
FROM dbo.wc_product_specific A
WHERE A.product_id = 1133
使用上面的查询我想设置auto_reorder列值.want来设置两个登录
我的逻辑2)工作正常,不明白为什么1)不工作?帮我解决这个问题?
如果有任何疑问,请提前致谢。
答案 0 :(得分:1)
这是否有效:?
SELECT A.specific_customization_id ,
A.customization_id ,
A.customization_value ,
A.customization_price ,
A.customization_cost ,
A.customization_code ,
A.customization_check ,
A.sort_order ,
A.option_code ,
A.product_id ,
A.image_1 ,
A.image_2 ,
A.MainProductID ,
A.customization_product_id ,
A.inactive ,
A.customization_description ,
A.customization_select ,
A.UOM ,
A.allow_recur ,
A.auto_reorder = CASE --it's an int type column
WHEN A.MainProductID IS NULL THEN A.allow_recur
ELSE B.allow_recur
END
FROM dbo.wc_product_specific A
left outer join wc_product B on B.product_id = A.MainProductID
WHERE A.product_id = 1133