Related
I have the following query:
var trains = queryableTrains.Select(t => new TrainDto
{
Id = t.Id,
Prefix = t.Prefix,
Color = t.Color,
PlannedMovements = t.TrainMovementPlans
.Where(p => trackCircuitIds.Contains(p.TrackCircuitId) && p.TimeStamp >= start && p.TimeStamp <= end)
.Select(p => new TrainMovementDto
{
SgfId = null,
Prefix = t.Prefix,
BlockSectionId = p.TrackCircuit.TrackCircuitGroupId ?? p.TrackCircuitId,
Timestamp = p.TimeStamp,
IsExit = false
})
.GroupBy(o => o.BlockSectionId)
.Select(o => o.First())
//.OrderBy(d => d.Timestamp)
.ToList(),
// ...
It's a lot to code to share everything so I will share the concept hoping it helps.
Basically my data model is as follows:
Train has several PlannedMovements
I want to use GroupBy to remove "duplicates", i.e., movements that has the same BlockSectionId (after the projection).
When I run the above code, even with the OrderBy commented, I get the following exception:
[17:00:55 ERR] Failed executing DbCommand (9ms) [Parameters=[#_outer_Prefix='?' (Size = 4000), #__start_2='?' (DbType = DateTime2), #__end_3='?' (DbType = DateTime2), #_outer_Id2='?' (DbType = Int64)], CommandType='"Text"', CommandTimeout='30']
SELECT #_outer_Prefix AS [Prefix], COALESCE([p.TrackCircuit3].[YRCTCGID], [p5].[YSBTRCID]) AS [BlockSectionId], [p5].[YSBTIMES], CAST(0 AS bit) AS [IsExit], [p.TrackCircuit3].[YRCTCGID], [p5].[YSBTRCID]
FROM [YSBPLTMT] AS [p5]
INNER JOIN [YRCTRCIT] AS [p.TrackCircuit3] ON [p5].[YSBTRCID] = [p.TrackCircuit3].[YRCTRCID]
WHERE (([p5].[YSBTRCID] IN ( _HUGE_GROUP_I_HAVE_TO_CHANGE_FOR_A_JOIN_ ) AND ([p5].[YSBTIMES] >= #__start_2)) AND ([p5].[YSBTIMES] <= #__end_3)) AND (#_outer_Id2 = [p5].[YSBTRAID])
ORDER BY COALESCE([p.TrackCircuit3].[YRCTCGID], [p5].[YSBTRCID]), [BlockSectionId]
System.Data.SqlClient.SqlException (0x80131904): A column has been specified more than once in the order by list. Columns in the order by list must be unique.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.ExecuteReader()
at Microsoft.EntityFrameworkCore.Storage.Internal.RelationalCommand.Execute(IRelationalConnection connection, DbCommandMethod executeMethod, IReadOnlyDictionary`2 parameterValues)
ClientConnectionId:f68441e8-baa8-4c16-aa66-0cae875ba173
Error Number:169,State:1,Class:15
[17:00:55 ERR] An exception occurred while iterating over the results of a query for context type 'GCO.Data.GcoContext'.
System.Data.SqlClient.SqlException (0x80131904): A column has been specified more than once in the order by list. Columns in the order by list must be unique.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.ExecuteReader()
at Microsoft.EntityFrameworkCore.Storage.Internal.RelationalCommand.Execute(IRelationalConnection connection, DbCommandMethod executeMethod, IReadOnlyDictionary`2 parameterValues)
at Microsoft.EntityFrameworkCore.Storage.Internal.RelationalCommand.ExecuteReader(IRelationalConnection connection, IReadOnlyDictionary`2 parameterValues)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable`1.Enumerator.BufferlessMoveNext(DbContext _, Boolean buffer)
at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](TState state, Func`3 operation, Func`3 verifySucceeded)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable`1.Enumerator.MoveNext()
at Microsoft.EntityFrameworkCore.Query.QueryMethodProvider._InjectParameters[TElement](QueryContext queryContext, IEnumerable`1 source, String[] parameterNames, Object[] parameterValues)+MoveNext()
at Microsoft.EntityFrameworkCore.Query.QueryMethodProvider._GroupBy[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector)+MoveNext()
at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source, Int32& length)
at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
at System.Linq.OrderedEnumerable`1.GetEnumerator()+MoveNext()
at System.Linq.Enumerable.SelectIPartitionIterator`2.MoveNext()
at System.Collections.Generic.List`1.AddEnumerable(IEnumerable`1 enumerable)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at lambda_method(Closure , TransparentIdentifier`2 )
at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ExceptionInterceptor`1.EnumeratorExceptionInterceptor.MoveNext()
ClientConnectionId:f68441e8-baa8-4c16-aa66-0cae875ba173
Error Number:169,State:1,Class:15
System.Data.SqlClient.SqlException (0x80131904): A column has been specified more than once in the order by list. Columns in the order by list must be unique.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.ExecuteReader()
at Microsoft.EntityFrameworkCore.Storage.Internal.RelationalCommand.Execute(IRelationalConnection connection, DbCommandMethod executeMethod, IReadOnlyDictionary`2 parameterValues)
at Microsoft.EntityFrameworkCore.Storage.Internal.RelationalCommand.ExecuteReader(IRelationalConnection connection, IReadOnlyDictionary`2 parameterValues)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable`1.Enumerator.BufferlessMoveNext(DbContext _, Boolean buffer)
at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](TState state, Func`3 operation, Func`3 verifySucceeded)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable`1.Enumerator.MoveNext()
at Microsoft.EntityFrameworkCore.Query.QueryMethodProvider._InjectParameters[TElement](QueryContext queryContext, IEnumerable`1 source, String[] parameterNames, Object[] parameterValues)+MoveNext()
at Microsoft.EntityFrameworkCore.Query.QueryMethodProvider._GroupBy[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector)+MoveNext()
at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source, Int32& length)
at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
at System.Linq.OrderedEnumerable`1.GetEnumerator()+MoveNext()
at System.Linq.Enumerable.SelectIPartitionIterator`2.MoveNext()
at System.Collections.Generic.List`1.AddEnumerable(IEnumerable`1 enumerable)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at lambda_method(Closure , TransparentIdentifier`2 )
at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ExceptionInterceptor`1.EnumeratorExceptionInterceptor.MoveNext()
ClientConnectionId:f68441e8-baa8-4c16-aa66-0cae875ba173
Error Number:169,State:1,Class:15
Exception thrown: 'System.Data.SqlClient.SqlException' in Microsoft.EntityFrameworkCore.dll
[17:00:55 INF] Executed action GCO.App.Controllers.MareysChart.MareysChartController.GetInitialData (GCO.App) in 331.5571ms
[17:00:55 INF] Executed endpoint 'GCO.App.Controllers.MareysChart.MareysChartController.GetInitialData (GCO.App)'
Exception thrown: 'System.Data.SqlClient.SqlException' in System.Private.CoreLib.dll
[17:00:55 ERR] An unhandled exception has occurred while executing the request.
System.Data.SqlClient.SqlException (0x80131904): A column has been specified more than once in the order by list. Columns in the order by list must be unique.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.ExecuteReader()
at Microsoft.EntityFrameworkCore.Storage.Internal.RelationalCommand.Execute(IRelationalConnection connection, DbCommandMethod executeMethod, IReadOnlyDictionary`2 parameterValues)
at Microsoft.EntityFrameworkCore.Storage.Internal.RelationalCommand.ExecuteReader(IRelationalConnection connection, IReadOnlyDictionary`2 parameterValues)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable`1.Enumerator.BufferlessMoveNext(DbContext _, Boolean buffer)
at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](TState state, Func`3 operation, Func`3 verifySucceeded)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable`1.Enumerator.MoveNext()
at Microsoft.EntityFrameworkCore.Query.QueryMethodProvider._InjectParameters[TElement](QueryContext queryContext, IEnumerable`1 source, String[] parameterNames, Object[] parameterValues)+MoveNext()
at Microsoft.EntityFrameworkCore.Query.QueryMethodProvider._GroupBy[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector)+MoveNext()
at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source, Int32& length)
at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
at System.Linq.OrderedEnumerable`1.GetEnumerator()+MoveNext()
at System.Linq.Enumerable.SelectIPartitionIterator`2.MoveNext()
at System.Collections.Generic.List`1.AddEnumerable(IEnumerable`1 enumerable)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at lambda_method(Closure , TransparentIdentifier`2 )
at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ExceptionInterceptor`1.EnumeratorExceptionInterceptor.MoveNext()
at System.Collections.Generic.List`1.AddEnumerable(IEnumerable`1 enumerable)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at GCO.App.MareysChart.Services.TrainService.GetTrains(DateTime start, DateTime end, List`1 trackCircuitIds) in C:\Projects\VSTS\GCO_server-dotnet\GCO\GCO\MareysChart\Services\TrainService.cs:line 66
at GCO.App.Controllers.MareysChart.MareysChartController.GetInitialData(Int64 tabId, String dateUtcString) in C:\Projects\VSTS\GCO_server-dotnet\GCO\GCO\Controllers\MareysChart\MareysChartController.cs:line 269
at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
at System.Threading.Tasks.ValueTask`1.get_Result()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeActionMethodAsync()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
at Microsoft.AspNetCore.Routing.EndpointMiddleware.Invoke(HttpContext httpContext)
at Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.Invoke(HttpContext httpContext)
at GCO.App.Middlewares.UserInfoMiddleware.InvokeAsync(HttpContext httpContext, GcoContext dbContext, ILuwakUserInfoAccessor userInfoAccessor) in C:\Projects\VSTS\GCO_server-dotnet\GCO\GCO\Middlewares\UserInfoMiddleware.cs:line 94
at Microsoft.AspNetCore.Cors.Infrastructure.CorsMiddleware.InvokeCore(HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)
ClientConnectionId:f68441e8-baa8-4c16-aa66-0cae875ba173
Error Number:169,State:1,Class:15
[17:00:55 INF] Request finished in 556.6788ms 500 text/html; charset=utf-8
If I remove the GroupBy altogether it works (but I have duplicated data).
Am I doing something wrong? Why is it generating duplicate order by's? Why is it generating Order By at all? Does Group By translates to an order by?
More strange, this happened to a collegue. In my database this was working just fine. I asked her to make a dump for me to debug. In both cases we have no data on the TrainMovementPlanned table...
I am constantly getting EntityCommandExecutionException while executing simple query.
The query occurs in context of transaction and this is usually happens when there are many threads locking some of the database tables.
I use serialized lock and have a retry pattern, although retries work when deadlock occur i cant figure out how to handle this error or why it could be thrown.
Time: 9/26/2016 9:01:53 PM
Message: System.Data.Entity.Infrastructure.DbUpdateException: An error occurred while updating the entries. See the inner exception for details. ---> System.Data.Entity.Core.UpdateException: An error occurred while updating the entries. See the inner exception for details. ---> System.Data.SqlClient.SqlException: Transaction (Process ID 59) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
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.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite)
at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
at System.Data.Entity.Core.Mapping.Update.Internal.DynamicUpdateCommand.Execute(Dictionary`2 identifierValues, List`1 generatedValues)
at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()
--- End of inner exception stack trace ---
at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()
at System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesToStore(SaveOptions options, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction)
at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesInternal(SaveOptions options, Boolean executeInExistingTransaction)
at System.Data.Entity.Internal.InternalContext.SaveChanges()
--- End of inner exception stack trace ---
at System.Data.Entity.Internal.InternalContext.SaveChanges()
at GizmoDALV2.DefaultDbContext.SaveChanges()
at ServerService.Service.SessionSetState(Int32 sessionId, SessionState state, DefaultDbContext cx)
at ServerService.Service.<>c__DisplayClass780_0.<OnProcessUserHostConnect>b__0()
at GizmoDALV2.DefaultDbContext.RetryBeforeThrow(Action action, Int32 retries, Int32 minWaitTime, Int32 maxWaitTime)
at GizmoDALV2.DefaultDbContext.RetryBeforeThrow(Action action, Int32 retries, Int32 minWaitTime, Int32 maxWaitTime)
at ServerService.Service.OnProcessUserHostConnect(HostComputer hostComputer, ClientDispatcher dispatcher)
at ServerService.Service.OnClientConnection(IConnection sender, Socket socket)
Member name: OnClientConnection
Source file path: D:\My Documents\Visual Studio 2015\Projects\Gizmo\GizmoService\GizmoService\Service\Service_Network.cs
Source line number: 702
Any possible causes for this ?
This is the insert query which is causing error :
public int Insert(User obj){
string query = "INSERT IGNORE INTO tblUser(Name,Photo,Email,Password,Branch,Phone,Address,Authority,Recover_Email,Facebook_ID) values(#name,#photo,#email,#pass,#branch,#phone,#addr,#auth,#re,#fbID) ";
List<SqlParameter> lstp = new List<SqlParameter>();
lstp.Add(new SqlParameter("#name", obj.Name));
lstp.Add(new SqlParameter("#photo", obj.Photo));
lstp.Add(new SqlParameter("#email", obj.Email));
lstp.Add(new SqlParameter("#pass", obj.Password));
lstp.Add(new SqlParameter("#branch", obj.Branch));
lstp.Add(new SqlParameter("#phone", obj.Phone));
lstp.Add(new SqlParameter("#addr", obj.Address));
lstp.Add(new SqlParameter("#auth", obj.Authority));
lstp.Add(new SqlParameter("#re", obj.Recovery_Email));
lstp.Add(new SqlParameter("#fbID", obj.Facebook_ID));
return DBUtility.ModifyData(query, lstp);
}
Exception Details :
System.Data.SqlClient.SqlException: Incorrect syntax near the keyword
'INTO'
Table Definition :
CREATE TABLE [dbo].[tblUser] (
[UserID] INT IDENTITY (1, 1) NOT NULL,
[Name] VARCHAR (100) NULL,
[Photo] VARCHAR (500) NULL,
[Email] VARCHAR (50) NULL,
[Password] VARCHAR (500) NULL,
[Branch] VARCHAR (50) NULL,
[Phone] VARCHAR (50) NULL,
[Address] VARCHAR (500) NULL,
[Recovery_Email] VARCHAR (100) NULL,
[Facebook_ID] VARCHAR (200) NULL,
PRIMARY KEY CLUSTERED ([UserID] ASC)
);
If at all needed, The Stack Trace :
[SqlException (0x80131904): Incorrect syntax near the keyword 'INTO'.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +1787814
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +5341674
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +546
System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +1693
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +275
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds) +1421
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite) +177
System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite) +208
System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +163
DataAccess.DBUtility.ModifyData(String query, List`1 lstParams) in c:\Users\ABHISHEK\Documents\Visual Studio 2013\Projects\InventoryManagement\DataAccess\DBUtility.cs:36
BusinessLogic.UserLogic.Insert(User obj) in c:\Users\ABHISHEK\Documents\Visual Studio 2013\Projects\InventoryManagement\BusinessLogic\UserLogic.cs:30
InventoryManagementSys.FacebookSync.AuthorizeUser() in c:\Users\ABHISHEK\Documents\Visual Studio 2013\Projects\InventoryManagement\InventoryManagementSys\FacebookSync.aspx.cs:83
InventoryManagementSys.FacebookSync.Page_Load(Object sender, EventArgs e) in c:\Users\ABHISHEK\Documents\Visual Studio 2013\Projects\InventoryManagement\InventoryManagementSys\FacebookSync.aspx.cs:20
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
System.Web.UI.Control.OnLoad(EventArgs e) +92
System.Web.UI.Control.LoadRecursive() +54
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772
AFAIK, you can not use INSERT IGNORE into SQL SERVER. If you are on SQL SERVER 2008 onwards you can use MERGE to do an INSERT if row does not exist, or an UPDATE. e.g.
MERGE
INTO tmp_final dv
USING tmp_holding_DataValue t
ON t.dateStamp = dv.dateStamp
AND t.itemId = dv.itemId
WHEN NOT MATCHED THEN
INSERT (dateStamp, itemId, value)
VALUES (dateStamp, itemId, value)
Edit: It is clear that you are executing against SQL Server because SQL Server client specific types and methods appear in your stack trace.
Based on comments to the question and answers:
You have got Microsoft's SQL Server RDBMS mixed up with Oracle's MySQL RDBMS.
You need to use T-SQL (Microsoft's SQL dialect) when using SQL Server.
You need to use MySQL's SQL dialect when using MySQL.
While common code to use both can be written, it is significantly more complicated (eg. you need to use the common types (like DbCommand) for most code generating the right concrete types with some form of factory layer).
Either use one RDBMS consistently (the easier option) or build the infrastructure (including restricting yourself to the common parts of the SQL dialects) to work across RDBMSs.
`if cmd.ExecuteScalar = 1 then
`Server Error in '/BookShop' Application.
Line 1: Incorrect syntax near '='.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Line 1: Incorrect syntax near '='.
Source Error:
Line 64: con.Open()
Line 65: Dim cmd As New SqlCommand(sql, con)
Line 66: If cmd.ExecuteScalar() Then
Line 67: Session("EntryNumber") = Val(TextBox2.Text)
Line 68: Response.Redirect("order.aspx")
Source File: D:\Review Material\DIPLOMA\DOTNET FULL PROJECTS\DPEE02\DPEE02\CODING\BookShop\BookDetails.aspx.vb Line: 66
Stack Trace:
[SqlException (0x80131904): Line 1: Incorrect syntax near '='.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +98
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +82
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +346
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +3430
System.Data.SqlClient.SqlDataReader.ConsumeMetaData() +52
System.Data.SqlClient.SqlDataReader.get_MetaData() +130
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +371
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +1272
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +334
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +45
System.Data.SqlClient.SqlCommand.ExecuteScalar() +161
BookShop.BookDetails.Button2_Click(Object sender, EventArgs e) in D:\Review Material\DIPLOMA\DOTNET FULL PROJECTS\DPEE02\DPEE02\CODING\BookShop\BookDetails.aspx.vb:66
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +96
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +116
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +31
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +32
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +72
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3825
Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433
This is probably an error in the SQL that is being executed - the contents of the SQL variable. Can you post this please?
I use Transaction scope for distributed transactions and NHibernate inner transactions.
After all operations I check if Transaction.Current is not aborted and try to commit NHibernate transaction.
Sometimes I receive this error:
The COMMIT TRANSACTION request has no corresponding BEGIN TRANSACTION.
The transaction active in this session has been committed or aborted
by another session.
With the following stacktrace:
System.Data.SqlClient.SqlConnection.OnError(SqlException exception,
Boolean breakConnection) в
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection) в
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj) в System.Data.SqlClient.TdsParser.Run(RunBehavior
runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream,
BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject
stateObj) в
System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[]
buffer, TransactionManagerRequestType request, String transactionName,
TransactionManagerIsolationLevel isoLevel, Int32 timeout,
SqlInternalTransaction transaction, TdsParserStateObject stateObj,
Boolean isDelegateControlRequest) в
System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransactionYukon(TransactionRequest
transactionRequest, String transactionName, IsolationLevel iso,
SqlInternalTransaction internalTransaction, Boolean
isDelegateControlRequest) в
System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransaction(TransactionRequest
transactionRequest, String name, IsolationLevel iso,
SqlInternalTransaction internalTransaction, Boolean
isDelegateControlRequest) в
System.Data.SqlClient.SqlInternalTransaction.Commit() в
System.Data.SqlClient.SqlTransaction.Commit() в
NHibernate.Transaction.AdoTransaction.Commit().
The main problem that this error is occasional. What could be the reason for this?
looks like you are not opening your sesions through a centralized code but closing the session transaction every time, else i dont see a reason for this happening..
make sure you have the same code path that is being used at the location where this error is thrown.. probably looking at the stack trace.