C# TRANCOUNT不匹配
这是我正在使用的示例存储过程C# TRANCOUNT不匹配,c#,sql-server,entity-framework,C#,Sql Server,Entity Framework,这是我正在使用的示例存储过程 CREATE PROCEDURE [dbo].[CreateCustomer] @firstName nvarchar(50) = null, @lastName nvarchar(50) = null, @emailAddress nvarchar(50), @contactNumber varchar(15) =null, @street1 nvarchar(50) = null,
CREATE PROCEDURE [dbo].[CreateCustomer]
@firstName nvarchar(50) = null,
@lastName nvarchar(50) = null,
@emailAddress nvarchar(50),
@contactNumber varchar(15) =null,
@street1 nvarchar(50) = null,
@street2 nvarchar(50) = null,
@city nvarchar(50) = null,
@State nvarchar(50)= null,
@Country nvarchar(50)=null,
@postalCode varchar(5) = null,
@middleName nvarchar(50),
@password nvarchar(50),
@membershipExpieryDate datetime,
@status int OUT
AS
BEGIN TRY
BEGIN TRANSACTION
SAVE TRANSACTION initialP
DECLARE @lastAccessed datetime = GETDATE()
DEClARE @uniqueCustomerID UNIQUEIDENTIFIER= NEWID()
BEGIN TRANSACTION
INSERT INTO Customers(CustomerID, FirstName, LastName, EmailAddress, LastAccessed, ContactNumber,
Street1, Street2, City, State, Country, PostalCode, MiddleName, Password, MembershipExpieryDate)
VALUES(@uniqueCustomerID,@firstName, @lastName, @emailAddress, @lastAccessed, @contactNumber, @street1, @street2,
@city, @State, @Country, @postalCode, @middleName, @password, @membershipExpieryDate)
INSERT INTO Roles(CustomersCustomerID,Role) VALUES(@uniqueCustomerID,'V')
COMMIT
SELECT CustomerID, FirstName, LastName, EmailAddress, LastAccessed, ContactNumber,
Street1, Street2, City, State, Country, PostalCode, MiddleName, MembershipExpieryDate FROM Customers WHERE EmailAddress = @emailAddress
SET @status =1
COMMIT
END TRY
BEGIN CATCH
IF(@@TRANCOUNT > 0)
BEGIN
ROLLBACK TRANSACTION initialP
END
SET @status =2
END CATCH
这是我用来获取查询数据的代码:
ObjectParameter status = new ObjectParameter("status", typeof(int));
var dataSet = Entity.CreateCustomer(newCustomer.FirstName, newCustomer.LastName,
newCustomer.EmailAddress, newCustomer.ContactNumber, newCustomer.Street1, newCustomer.Street2,
newCustomer.City, newCustomer.State, newCustomer.Country, newCustomer.PostalCode, newCustomer.MiddleName,
newCustomer.Password, newCustomer.MembershipExpieryDate, status);
但在执行此存储过程时,会出现一个错误,指出Trans count不匹配。
据我所知,trans count
在begin transaction
发生时被1证明有罪,而在commit
发生时被1证明有罪。
我已经在函数导入中映射了函数,因为它可以返回复杂类型
我无法理解这方面的问题。对我来说似乎没问题。我想知道我这样做是正确的还是没有一些细节。谢谢
编辑:
这是我通过编写示例代码发现的。我第一次想到的是开始行动和承诺。但事实并非如此它允许选择在commit语句之前插入的值(如果我错了,请更正)。
我创建了一个有3列的测试表(test1惟一标识符、test2 int、test3 int)
我创建了一个存储过程调用测试:
其结果如下:
CREATE PROCEDURE dbo.TestForCommit
(
@test11 int,
@test111 int,
@status int OUTPUT
)
AS
begin try
declare @test1 uniqueidentifier = NEWID()
begin transaction
insert into TestT1(Test1, Test11, Test111) values(@test1, @test11, @test111)
commit
select Test1, Test11, Test111 from TestT1 where Test1 = @test1
SET @status = 1
end try
begin catch
Rollback Transaction
set @status =2
end catch
/* SET NOCOUNT ON */
RETURN
我已经在实体模型中的中创建了一个功能导入,我使用它的方式如下:
ObjectParameter status = new ObjectParameter("status", typeof(int));
SchoolEntities test = new SchoolEntities();
var dataSet = test.TestForCommit(1, 1, status);
//A:
//(XXXXXXXXXXXXX)Console.WriteLine((int)status.Value);
foreach (var item in dataSet)
{
TestForCommit_Result t = item;
Console.WriteLine("{0} , {1} , {2}", t.Test1, t.Test11, t.Test111);
}
//B:
Console.WriteLine((int)status.Value);
Console.ReadLine();
此//A:零件导致问题。这将产生一个空引用异常。但是//B:part正在工作并给出状态值。我仍在寻找它为什么会这样工作。谢谢我的建议。(将Xact_中止设置为On)
如果发生错误,您将回滚,但外部事务(脚本中的第一个开始事务)仍处于活动状态<代码>回滚事务保存点\u name不会从中递减@@TRANCOUNT,因此我应该将其完全设置为一对“开始转换”和“提交”。您不需要嵌套事务来插入两条记录。我删除了嵌套的tran和commit,但我没有这样做。我没有删除set status,因为我想在代码中进一步引用它。您是否从
捕获块中删除了IF(@@tracount>0)
等?是的,我删除了它,但是当我删除set@status时,我也更改了代码以获得复杂类型。因为雕像返回为空。如果出现任何错误,我也希望得到该值。我已经在程序中向用户提供了反馈。这些天代码一直在工作。非常感谢你。但很抱歉,问题在于编码。我正在就问题本身编辑它。再次感谢。抱歉,由于生病导致活动减少:(是的,这段代码工作得很好。谢谢。你看到我的编辑了吗。RGI你是最好的。非常感谢!!但是我不能像我在编辑的问题中提到的那样首先获得状态值,我只能在从存储过程中获得数据集后才能获得状态值。现在我使用这段代码来完成我的工作。但是我很好奇关于当前问题。非常感谢您的支持。干杯!!
Begin Try
Set NoCount On
Set Xact_Abort On
Begin Tran
--Your Query
Commit Tran
End Try
Begin Catch
Rollback Tran
End Catch
CREATE PROCEDURE [dbo].[CreateCustomer]
@firstName nvarchar(50) = null,
@lastName nvarchar(50) = null,
@emailAddress nvarchar(50),
@contactNumber varchar(15) =null,
@street1 nvarchar(50) = null,
@street2 nvarchar(50) = null,
@city nvarchar(50) = null,
@State nvarchar(50)= null,
@Country nvarchar(50)=null,
@postalCode varchar(5) = null,
@middleName nvarchar(50),
@password nvarchar(50),
@membershipExpieryDate datetime,
@status int OUT
AS
BEGIN TRY
Set NoCount ON
Set XAct_Abort ON
DECLARE @lastAccessed datetime = GETDATE()
DEClARE @uniqueCustomerID UNIQUEIDENTIFIER= NEWID()
BEGIN TRANSACTION
INSERT INTO Customers(CustomerID, FirstName, LastName, EmailAddress, LastAccessed, ContactNumber,
Street1, Street2, City, State, Country, PostalCode, MiddleName, Password, MembershipExpieryDate)
VALUES(@uniqueCustomerID,@firstName, @lastName, @emailAddress, @lastAccessed, @contactNumber, @street1, @street2,
@city, @State, @Country, @postalCode, @middleName, @password, @membershipExpieryDate)
INSERT INTO Roles(CustomersCustomerID,Role) VALUES(@uniqueCustomerID,'V')
COMMIT
SELECT CustomerID, FirstName, LastName, EmailAddress, LastAccessed, ContactNumber,
Street1, Street2, City, State, Country, PostalCode, MiddleName, MembershipExpieryDate FROM Customers WHERE EmailAddress = @emailAddress
SET @status =1
COMMIT Tran
END TRY
BEGIN CATCH
ROLLBACK TRANSACTION
SET @status =2
END CATCH