我有一个允许用户创建数据库表和字段的应用程序。 我们使用SQL管理对象（SMO）（Microsoft.SqlServer.Smo）来执行表更改。
更新现有表的代码执行以下操作：
using (System.Transactions.TransactionScope ts = new System.Transactions.TransactionScope(System.Transactions.TransactionScopeOption.Required, new TimeSpan(0, 15, 0)))
{
using (SqlConnection sqlConnection = new SqlConnection(connectionSettings.ConnectionString))
{
ServerConnection serverConnection = new ServerConnection(sqlConnection);
SMO.Server server = new SMO.Server(serverConnection);
SMO.Database database = server.Databases[sqlConnection.Database];
SMO.Table table = database.Tables[targetTableName];
// perform table operations such as add new columns
}
在尝试访问tables集合的行中，我们收到错误： 与当前连接关联的事务已完成但尚未处理。必须先处理事务，然后才能使用连接执行SQL语句。
奇怪的是，此代码适用于我们环境中的30台不同机器以及其他客户站点。但是在一个客户站点，代码会生成此错误。
我们在调用检索表之前添加了跟踪，显示System.Transactions.Transaction.Current.TransactionInformation.Status为Active。 System.Transactions.TransactionManager.MaximumTimeout的跟踪显示10分钟。
客户在两台不同的机器上复制了问题。 客户运行旧版本的代码，它可以运行。
在版本之间，我们更新了使用最新的SQL Server 2016 SMO dll。但同样，这适用于其他客户站点并使用旧版本的代码。
将SMO相关的DLLS复制到我们的BIN目录中并没有解决问题。 从Nuget更新到最新的SMO相关DLLS并没有解决问题。
问题：
有关如何确定此错误原因的任何建议？
我们不确定我们在这里缺少什么。
编辑：这是堆栈跟踪。
at System.Data.SqlClient.SqlInternalConnectionTds.CheckEnlistedTransactionBinding()
at System.Data.SqlClient.TdsParser.TdsExecuteSQLBatch(String text, Int32 timeout, SqlNotificationRequest notificationRequest, TdsParserStateObject stateObj, Boolean sync, Boolean callerHasConnectionLock)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet)
at Microsoft.SqlServer.Management.Common.ConnectionManager.ExecuteTSql(ExecuteTSqlAction action, Object execObject, DataSet fillDataSet, Boolean catchException)
at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteWithResults(String sqlCommand)
at Microsoft.SqlServer.Management.Smo.ExecuteSql.ExecuteWithResults(String query)
at Microsoft.SqlServer.Management.Smo.ExecuteSql.Execute(StringCollection query)
at Microsoft.SqlServer.Management.Smo.ExecuteSql.ExecuteWithResults(String query, Object con)
at Microsoft.SqlServer.Management.Smo.PostProcessDatabaseInsideAttribs.InitializeRowCollection(DataProvider dp)
at Microsoft.SqlServer.Management.Smo.PostProcessDatabaseInsideAttribs.GetColumnData(String name, Object data, DataProvider dp)
at Microsoft.SqlServer.Management.Smo.DataProvider.ManipulateRowDataPostProcess()
at Microsoft.SqlServer.Management.Smo.DataProvider.GetTable()
at Microsoft.SqlServer.Management.Smo.SqlObjectBase.FillData(ResultType resultType, StringCollection sql, Object connectionInfo, StatementBuilder sb)
at Microsoft.SqlServer.Management.Smo.SqlObjectBase.FillDataWithUseFailure(SqlEnumResult sqlresult, ResultType resultType)
at Microsoft.SqlServer.Management.Smo.SqlObjectBase.BuildResult(EnumResult result)
at Microsoft.SqlServer.Management.Smo.DatabaseLevel.GetData(EnumResult res)
at Microsoft.SqlServer.Management.Sdk.Sfc.Environment.GetData()
at Microsoft.SqlServer.Management.Sdk.Sfc.Environment.GetData(Request req, Object ci)
at Microsoft.SqlServer.Management.Sdk.Sfc.Enumerator.GetData(Object connectionInfo, Request request)
at Microsoft.SqlServer.Management.Smo.ExecutionManager.GetEnumeratorDataReader(Request req)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.GetInitDataReader(String[] fields, OrderBy[] orderby)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.ImplInitialize(String[] fields, OrderBy[] orderby)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.Initialize(Boolean allProperties)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.OnPropertyMissing(String propname, Boolean useDefaultValue)
at Microsoft.SqlServer.Management.Smo.PropertyCollection.RetrieveProperty(Int32 index, Boolean useDefaultOnMissingValue)
at Microsoft.SqlServer.Management.Smo.PropertyCollection.GetPropertyObject(Int32 index)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.GetPropertyOptional(String propName)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.GetDbComparer(Boolean inServer)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.InitializeStringComparer()
at Microsoft.SqlServer.Management.Smo.AbstractCollectionBase.get_StringComparer()
at Microsoft.SqlServer.Management.Smo.SchemaCollectionBase.InitInnerCollection()
at Microsoft.SqlServer.Management.Smo.SmoCollectionBase.GetObjectByKey(ObjectKeyBase key)
at Microsoft.SqlServer.Management.Smo.TableCollection.get_Item(String name)
at UpdateForm(FormInfo updatedForm)
编辑：在测试应用中重现
我创建了一个测试应用程序，该应用程序也适用于多个测试环境，但在客户的计算机上失败。
using Microsoft.SqlServer.Management.Common;
using System;
using System.Data.SqlClient;
using System.Reflection;
using System.Transactions;
using SMO = Microsoft.SqlServer.Management.Smo;
namespace TestSMO
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine($"{"-".PadLeft(25, '-')}");
Console.WriteLine("Test Start");
string connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["DEFAULT"].ConnectionString;
TraceTransactionStatus();
TimeSpan timeSpanOption = new System.TimeSpan(0, 15, 0);
TransactionOptions options = new TransactionOptions();
options.IsolationLevel = IsolationLevel.ReadCommitted;
options.Timeout = timeSpanOption;
Console.WriteLine(" Start Transaction");
using (System.Transactions.TransactionScope ts = new System.Transactions.TransactionScope(System.Transactions.TransactionScopeOption.Required, options))
{
TraceTransactionStatus();
Console.WriteLine(" Using SQL Connection");
using (SqlConnection sqlConnection = new SqlConnection(connectionString))
{
try
{
TraceTransactionStatus();
Console.WriteLine(" New SQL Connection");
ServerConnection serverConnection = new ServerConnection(sqlConnection);
Console.WriteLine(" New SQL Connection...done");
TraceTransactionStatus();
Console.WriteLine(" New SMO Server");
SMO.Server server = new SMO.Server(serverConnection);
Console.WriteLine(" New SMO Server...done");
TraceTransactionStatus();
Console.WriteLine(" Access database");
SMO.Database database = server.Databases[sqlConnection.Database];
Console.WriteLine(" Access database...done");
TraceTransactionStatus();
Console.WriteLine(" Access document table");
SMO.Table table = database.Tables["Document"];
Console.WriteLine(" Access document table...done");
TraceTransactionStatus();
}
catch(Exception e)
{
Console.WriteLine($"{"*".PadLeft(25, '*')}");
Console.WriteLine($"Exception: {e.Message}");
Console.WriteLine($"{"*".PadLeft(25, '*')}");
TraceTransactionStatus();
}
}
GetAssemblies();
}
Console.WriteLine("Test Complete");
Console.WriteLine($"{"-".PadLeft(25, '-')}");
Console.WriteLine("Press enter to continue");
Console.ReadKey();
}
private static void TraceTransactionStatus()
{
if (System.Transactions.Transaction.Current != null)
{
Console.WriteLine($" Current Transaction Status: {Enum.GetName(typeof(System.Transactions.TransactionStatus), System.Transactions.Transaction.Current.TransactionInformation.Status)}");
Console.WriteLine($" Current Transaction Distributed ID: {System.Transactions.Transaction.Current.TransactionInformation.DistributedIdentifier}");
Console.WriteLine($" Current Transaction Local ID: {System.Transactions.Transaction.Current.TransactionInformation.LocalIdentifier}");
}
else
{
Console.WriteLine($" Current Transaction Status: None");
}
}
public static void GetAssemblies()
{
Assembly[] asms = AppDomain.CurrentDomain.GetAssemblies();
foreach(Assembly assembly in asms)
{
Console.WriteLine($"{"-".PadLeft(25, '-')}");
Console.WriteLine($"Fullname: {assembly.FullName}");
Console.WriteLine($"CodeBase: {assembly.CodeBase}");
Console.WriteLine($"ImageRTV: {assembly.ImageRuntimeVersion}");
Console.WriteLine($"Location: {assembly.Location}");
}
}
}
}
这是输出：
-------------------------
Test Start
Current Transaction Status: None
Start Transaction
Current Transaction Status: Active
Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
Using SQL Connection
Current Transaction Status: Active
Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
New SQL Connection
New SQL Connection...done
Current Transaction Status: Active
Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
New SMO Server
New SMO Server...done
Current Transaction Status: Active
Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
Access database
Access database...done
Current Transaction Status: Active
Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
Access document table
*************************
Exception: The transaction associated with the current connection has completed
but has not been disposed. The transaction must be disposed before the connecti
on can be used to execute SQL statements.
*************************
Current Transaction Status: Aborted
Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
-------------------------
Fullname: mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
ImageRTV: v4.0.30319
Location: C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll
-------------------------
Fullname: TestSMO, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
CodeBase: file:///E:/testAppDir/TestApp/TestApp/TestSMO.exe
ImageRTV: v4.0.30319
Location: E:\testAppDir\TestApp\TestApp\TestSMO.exe
-------------------------
Fullname: System.Transactions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Transactions/v4.0_4.0.0.0__b77a5c561934e089/System.Transactions.dll
ImageRTV: v4.0.30319
Location: C:\Windows\Microsoft.Net\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll
-------------------------
Fullname: System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
ImageRTV: v4.0.30319
Location: C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll
-------------------------
Fullname: System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
ImageRTV: v4.0.30319
Location: C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll
-------------------------
Fullname: System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
ImageRTV: v4.0.30319
Location: C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll
-------------------------
Fullname: System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
ImageRTV: v4.0.30319
Location: C:\Windows\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll
-------------------------
Fullname: Microsoft.SqlServer.ConnectionInfo, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.ConnectionInfo/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.ConnectionInfo.dll
ImageRTV: v2.0.50727
Location: C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.ConnectionInfo\13.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.ConnectionInfo.dll
-------------------------
Fullname: Microsoft.SqlServer.Smo, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.Smo/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.Smo.dll
ImageRTV: v2.0.50727
Location: C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.Smo\13.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.Smo.dll
-------------------------
Fullname: Microsoft.SqlServer.Management.Sdk.Sfc, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.Management.Sdk.Sfc/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.Management.Sdk.Sfc.dll
ImageRTV: v2.0.50727
Location: C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.Management.Sdk.Sfc\13.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.Management.Sdk.Sfc.dll
-------------------------
Fullname: Microsoft.SqlServer.SqlEnum, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.SqlEnum/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.SqlEnum.dll
ImageRTV: v2.0.50727
Location: C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.SqlEnum\13.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.SqlEnum.dll
-------------------------
Fullname: System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
ImageRTV: v4.0.30319
Location: C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll
-------------------------
Fullname: System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.EnterpriseServices/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll
ImageRTV: v4.0.30319
Location: C:\Windows\Microsoft.Net\assembly\GAC_32\System.EnterpriseServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.dll
-------------------------
Fullname: Microsoft.SqlServer.SqlClrProvider, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.SqlClrProvider/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.SqlClrProvider.dll
ImageRTV: v2.0.50727
Location: C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.SqlClrProvider\13.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.SqlClrProvider.dll
-------------------------
Fullname: System.Numerics, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
ImageRTV: v4.0.30319
Location: C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll
Test Complete
-------------------------
Press enter to continue
编辑：更多研究
我们创建了三个版本的测试应用程序。每个编译针对不同版本的SQL管理对象DLL：v12，v13和v14。
v12按预期工作。 v13在标题中抛出异常。 v14引发了一个不同的例外：属性DefaultSchema不适用于Database＆＃39; [databaseName]＆＃39;。 此属性可能不存在，或者由于in可能无法检索 足够的访问权限。
用户使用Windows身份验证进行身份验证。
用户存在于SQL Server中并与数据库关联。默认架构为[dbo]。
用户还属于SQL Server中与域名相关联的域组。域组的默认架构为[dbo]。
我不确定这是一条线索还是一条红鲱鱼＆＃34;。
答案 0 :(得分：0)
我们的问题的解决方案（解决方法）是在客户端计算机和SQL Server计算机上配置MSDTC（Microsoft分布式事务处理协调器）。
我们的猜测是在Microsoft.SQLServer.SMO版本12和Microsoft.SQLServer.SMO版本13和14之间发生了变化，它将事务提升为分布式事务。版本12不需要MSDTC。
注意：如果您不使用事务，或者使用带有suppress选项的事务范围，代码也不会失败。