这是我的sp查询:
-- --------------------------------------------------------------------------------
-- Routine DDL
-- Note: comments before and after the routine body will not be stored by the server
-- --------------------------------------------------------------------------------
DELIMITER $$
CREATE DEFINER=`root`@`%` PROCEDURE `USP_GetUserOrders`(UserId INT)
BEGIN
SELECT op.OrderId,
O.Number,
SUM(op.Price) Price,
(SELECT CONCAT(A.Detail, ' ',C.Name, ' / ', Ci.Name) FROM kobiakinlar.Address AS A
INNER JOIN County AS C ON C.CountyId = A.CountyId
INNER JOIN City AS Ci ON C.CityId = Ci.CityId
WHERE UserId = O.UserId) AS UserAddress,
( SELECT CASE WHEN O.Status =0 THEN 'Onay Bekliyor' WHEN O.Status =1 THEN 'Onaylandı' WHEN O.Status = 2 THEN 'Reddedildi' END) Status,
O.Creation,
( SELECT CASE WHEN O.IsDelivered =0 THEN 'Teslim Edilmedi' ELSE 'Teslim Edildi' END) IsDelivered,
group_concat(P.Name) Product
FROM
kobiakinlar.product P
JOIN
kobiakinlar.orderproduct op ON op.ProductId = P.productId
JOIN
kobiakinlar.order O ON O.orderId = op.OrderId
JOIN
kobiakinlar.address A ON A.addressId = O.AddressId
WHERE O.UserId = UserId
GROUP BY op.OrderId;
END
当我Error Code: 1242. Subquery returns more than 1 row
CALL USP_GetUserOrders(3)
但我只在查询选项卡中运行sql,它会运行并返回我想要的内容。您可以在图片中看到查询结果:
你有什么建议吗?
答案 0 :(得分:3)
我很确定原因是UserId和o.UserId之间的混淆。
在查询上下文中,它不知道你是指sp的参数。将arguemnt的名称更改为“arg_UserId”,并在适当的查询中替换它。
您还可以简化查询语法。案例陈述之外的SELECT
是多余的。此外,假设与县和城市的连接始终为1-1,您可以将查询重写为:
SELECT op.OrderId, O.Number, SUM(op.Price) Price,
CONCAT(A.Detail, ' ', C.Name, ' / ', Ci.Name) AS UserAddress,
(CASE WHEN O.Status =0 THEN 'Onay Bekliyor' WHEN O.Status =1 THEN 'Onaylandı' WHEN O.Status = 2 THEN 'Reddedildi' END) Status,
O.Creation,
(CASE WHEN O.IsDelivered =0 THEN 'Teslim Edilmedi' ELSE 'Teslim Edildi' END) IsDelivered,
group_concat(P.Name) as Product
FROM kobiakinlar.product P JOIN
kobiakinlar.orderproduct op
ON op.ProductId = P.productId JOIN
kobiakinlar.order O
ON O.orderId = op.OrderId JOIN
kobiakinlar.address A ON A.addressId = O.AddressId join
County C
ON C.CountyId = A.CountyId join
City AS Ci
ON C.CityId = Ci.CityId
WHERE O.UserId = arg_UserId
GROUP BY op.OrderId;