所以我试图执行我的存储过程,如下所示
String sql =
"SET NOCOUNT ON; " +
"DECLARE @id INT, @itemnumber nvarchar(20); " +
"SELECT @id= '" + car.ID + "'" +
"EXEC [file].[usp_iudCar] " +
"@p_ID=@id OUTPUT," +
"@p_Location= '" + location + "', " +
"@p_ItemNumber=@itemnumber OUTPUT, " +
"@p_DoerTicket= '" + userToken + "' " +
"SELECT @id AS id, @itemnumber AS itemNumber; ";
QueryParamCollection queryParams = new QueryParamCollection();
queryParams.AddInt32Param(QueryParamName.CarID, (object)car.ID);
queryParams.AddStringParam(QueryParamName.Location, (object)location);
queryParams.AddStringParam(QueryParamName.DoerTicket, (object)userToken);
var update = context.Database.SqlQuery<Int32>(sql).FirstOrDefault<Int32>();
return update;
类似于我从服务器上的查询中执行此操作
DECLARE @return_value int,
@p_ID int,
@p_ItemNumber nvarchar(20)
SELECT @p_ID = 1783999
EXEC @return_value = [file].[usp_iudCar]
@p_ID = @p_ID OUTPUT,
@p_ItemNumber = @p_ItemNumber OUTPUT,
@p_Location = N'test',
@p_DoerTicket = N'0x0100000057065fc3a91f34c3f1f9cad41e2f5889bac6a68d3eab408dddc1cd54e57ce240565294f481f4f248bca4fb772d38fd737a6448dcbbfd9d58'
SELECT @p_ID as N'@p_ID',
@p_ItemNumber as N'@p_ItemNumber'
SELECT 'Return Value' = @return_value
GO
但是我得到了一个execption
“ExceptionMessage”:“数据读取器有多个字段。多个字段对EDM原语或枚举类型无效。”,
所以我该如何解决这个问题?或者正确的方法是什么?
答案 0 :(得分:0)
此错误:
“ExceptionMessage”:“数据读取器有多个字段。多个字段对EDM原语或枚举类型无效。”,
表示您的存储过程返回的不仅仅是一个字段。这就是你告诉EF的事情:
$(document).ready(function(){
var arr = ["2","4","6","8","10"];
var index = ["1","5","9"];
var arrIndex = index.map(function(value){
return arr.indexOf(value);
})
console.log(arrIndex);
})
查询返回单个字段,但显然不是这种情况,或者您不会收到该错误。
这也不是如何使用EF数据库第一种方法调用存储过程。请参阅this问题和接受的答案,了解如何以正确的方式做您想做的事情。