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Azure SQL Database - Transient Fault Handling doesn't work

I tried to use SQL Azure Transient fault handling, but it doesn't seem to work. My Web Service still throws a transient error. Here is my code:
public int ExecuteSqlCmd(string sql, object[] parameters)
{
return (new RetryPolicy<SqlDatabaseTransientErrorDetectionStrategy>(10, TimeSpan.FromSeconds(0.5), TimeSpan.FromSeconds(0.5))).ExecuteAction<int>(() =>
{
return this.Database.ExecuteSqlCommand(sql, sqlParams);
});
}
Every now and then, it still throws this error:
System.Data.Entity.Core.EntityException: An exception has been raised that is likely due to a transient failure. If you are connecting to a SQL Azure database consider using SqlAzureExecutionStrategy. ---> System.Data.SqlClient.SqlException: Transaction (Process ID 84) 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, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, 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& usedCache, Boolean asyncWrite, Boolean inRetry)
at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
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.Objects.ObjectContext.ExecuteStoreCommandInternal(String commandText, Object[] parameters)
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.<>c__DisplayClass174_0.<ExecuteStoreCommand>b__0()
at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
--- End of inner exception stack trace ---
at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
...
...
...
Any idea why? I have spent days trying to figure out the solution to this problem.
Thanks

How to gen a sequential unique number by difference app type

I've built a MVC web application and need to generate a unique sequential serial number by application type and year when users submit a form.
The serial number will be stored in the database table MyAppCodeSEQ and the column "AppCode" is a PK of MyAppCodeSEQ.
This is my code below:
public MyAppCodeSEQ GenNewAppCode(string appType)
{
MyAppCodeSEQ model = null;
try
{
var today = DateTime.Now;
int maxSeq = _db.MyAppCodeSEQ.Where(x => x.AppType == appType && x.Year == today.Year).Select(x => x.SEQ).DefaultIfEmpty(0).Max();
maxSeq = maxSeq + 1;
var appCode = "XX" + appType + today.Year % 1000 + string.Format("{0:000000}", maxSeq);
model = new MyAppCodeSEQ()
{
AppCode = appCode,
AppType = appType,
Year = today.Year,
SEQ = maxSeq,
};
_db.MyAppCodeSEQ.Add(model);
_db.SaveChanges();
}
catch(Exception e)
{
Thread.Sleep(100);
GenNewAppCode(appType);
}
return model;
}
The function will be recall while a duplicated key is inserted. however, the below error was occurred again and again.
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: Violation of PRIMARY KEY constraint 'PK_AppCodeSEQ'.
Cannot insert duplicate key in object 'dbo.MyAppCodeSEQ'. The duplicate key value is (XXYY18002193).
The statement has been terminated.
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
System.Data.SqlClient.SqlDataReader.get_MetaData()
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption)
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.Reader(DbCommand command, DbCommandInterceptionContext interceptionContext)
System.Data.Entity.Core.Mapping.Update.Internal.DynamicUpdateCommand.Execute(Dictionary`2 identifierValues, List`1 generatedValues)
System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()
System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()
System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
System.Data.Entity.Core.Objects.ObjectContext.SaveChangesToStore(SaveOptions options, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction)
System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
System.Data.Entity.Core.Objects.ObjectContext.SaveChangesInternal(SaveOptions options, Boolean executeInExistingTransaction)
System.Data.Entity.Internal.InternalContext.SaveChanges()
Is there any better solution to generate a serial number?

a) NEVER have a primary key that is editable, let the database generate the primary key
b) The fields you are talking about is a "candidate" key and the purpose is usually for "sorting" into a default sequence or for guaranteeing uniqueness
c) A sequential key is pretty much a meaningless piece of data
That said, here's one possibility:
Alter your class (MyAppCodeSEQ) to include an Added field as DateTime. Unique Index on AppCode, AppType, Year to prevent duplicates. Index on AppCode, AppType, Year, Added to preserve sequence.

The timeout period elapsed prior to completion of the operation or the server is not responding. with showing package path

I am uploading a mdb file from asp.net upload control into my sql server database.
When I am uploading file it is calling a stored procedure from my database in which I m executing my SSIS packages. Whenever I am calling my stored procedure after few seconds I m getting the exception with showing the path of my packages.
$exception {"Execution Timeout Expired. The timeout period elapsed
prior to completion of the operation or the server is not
responding.\r\ndtexec /F
\"C:\DTSX\DTSXPackage\DTSXPackage\Package.dtsx\""} System.Data.SqlClient.SqlException
As I read for solution. Read about Command timeout property of SQL. But still issue is same.
When I m running stored procedure through SQL server it is running fine but when calling it through the asp.net code it giving exception.
stack trace -
>
StackTrace " at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection, Action1 wrapCloseInAction)\r\n
at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)\r\n
at
System.Data.SqlClient.TdsParserStateObject.ReadSniError(TdsParserStateObject
stateObj, UInt32 error)\r\n at
System.Data.SqlClient.TdsParserStateObject.ReadSniSyncOverAsync()\r\n
at
System.Data.SqlClient.TdsParserStateObject.TryReadNetworkPacket()\r\n
at System.Data.SqlClient.TdsParserStateObject.TryPrepareBuffer()\r\n
at System.Data.SqlClient.TdsParserStateObject.TryReadByte(Byte&
value)\r\n at System.Data.SqlClient.TdsParser.TryRun(RunBehavior
runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream,
BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject
stateObj, Boolean& dataReady)\r\n at
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds,
RunBehavior runBehavior, String resetOptionsString, Boolean
isInternal, Boolean forDescribeParameterEncryption)\r\n at
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean
async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry,
SqlDataReader ds, Boolean describeParameterEncryptionRequest)\r\n at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String
method, TaskCompletionSource1 completion, Int32 timeout, Task& task,
Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)\r\n at
System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource1
completion, String methodName, Boolean sendToPipe, Int32 timeout,
Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)\r\n at
System.Data.SqlClient.SqlCommand.ExecuteNonQuery()\r\n at
System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query,
QueryInfo queryInfo, IObjectReaderFactory factory, Object[]
parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object
lastResult)\r\n at
System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query,
QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[]
userArguments, ICompiledSubQuery[] subQueries)\r\n at
System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression
query)\r\n at System.Data.Linq.DataContext.ExecuteMethodCall(Object
instance, MethodInfo methodInfo, Object[] parameters)\r\n at
DataAccessLayer.EspaceDatasetDataContext.ETL_IMPORT_09_01(Nullable1
userId, String clientMachineIP, String loadType, Nullable1 instId,
Nullable1 bIsIgnoreErrors, Nullable`1& rcout)
stored procedure calling method:-
public int? RunDTSxProcess(long userID, string clientMachineIP, string loadType, long instID, bool ignoreErrors)
{
try
{
int? result = 0;
var run = database.storedproc(userID, clientMachineIP, loadType, instID, ignoreErrors,ref result);
return result;
}
catch (Exception)
{
throw;
}
}

I think you may be looking to do something with MainContext for your linq to sql as detailed in this answer.
taken from the above answer:
using (MainContext db = new MainContext())
{
db.CommandTimeout = 3 * 60; // 3 Mins
}

EF Alter Table with FK error message

I run in the following error message when I try to run the Seed method.
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: The INSERT statement conflicted
with the FOREIGN KEY constraint "FK_dbo.Movies_dbo.Genres_GenreId".
The conflict occurred in database
"C:\USERS\PATH\SOURCE\REPOS\MVCMOVIE\MVCMOVIE\APP_DATA\MOVIES.MDF",
table "dbo.Genres", column 'Id'. The statement has been terminated.
This is my Configuration.cs file
namespace MvcMovie.Migrations
{
using MvcMovie.Models;
using System;
using System.Data.Entity;
using System.Data.Entity.Migrations;
using System.Linq;
internal sealed class Configuration : DbMigrationsConfiguration<MvcMovie.Models.MovieDBContext>
{
public Configuration()
{
AutomaticMigrationsEnabled = false;
ContextKey = "MvcMovie.Models.MovieDBContext";
}
protected override void Seed(MvcMovie.Models.MovieDBContext context)
{
context.Genres.AddOrUpdate(i => i.Title,
new Genre
{
Title = "Comedy"
},
new Genre
{
Title = "Romantic"
});
context.Ratings.AddOrUpdate(i => i.Title,
new Rating
{
Title = "General"
},
new MvcMovie.Models.Rating
{
Title = "Parentel guidence"
});
context.Movies.AddOrUpdate(i => i.Title,
new Movie
{
Title = "When Harry Met Sally",
ReleaseDate = DateTime.Parse("1989-1-11"),
GenreId = 1,
RatingId = 1,
Price = 7.99M
},
new Movie
{
Title = "Ghostbusters ",
ReleaseDate = DateTime.Parse("1984-3-13"),
GenreId = 1,
RatingId = 1,
Price = 8.99M
},
}
);
}
}
}
Rating and Genres are set to be FK in the Movie table. Has anyone had this type of error before?
The statement has been terminated. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception,
Boolean breakConnection, Action1 wrapCloseInAction) at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection, Action1 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, Boolean
isInternal, Boolean forDescribeParameterEncryption) at
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean
async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry,
SqlDataReader ds, Boolean describeParameterEncryptionRequest) at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String
method, TaskCompletionSource1 completion, Int32 timeout, Task& task,
Boolean& usedCache, Boolean asyncWrite, Boolean inRetry) 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.ExecuteReader(CommandBehavior behavior)
at
System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<Reader>b__c(DbCommand
t, DbCommandInterceptionContext1 c) at
System.Data.Entity.Infrastructure.Interception.InternalDispatcher1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget
target, Func3 operation, TInterceptionContext interceptionContext,
Action3 executing, Action3 executed) at
System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.Reader(DbCommand
command, DbCommandInterceptionContext interceptionContext) at
System.Data.Entity.Internal.InterceptableDbCommand.ExecuteDbDataReader(CommandBehavior
behavior) at
System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior)
at
System.Data.Entity.Core.Mapping.Update.Internal.DynamicUpdateCommand.Execute(Dictionary2
identifierValues, List1 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.EntityClient.Internal.EntityAdapter.b__2(UpdateTranslator
ut) at
System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.Update[T](T
noChangesResult, Func2 updateFunction) at
System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.Update()
at
System.Data.Entity.Core.Objects.ObjectContext.<SaveChangesToStore>b__35()
at
System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func1
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.Core.Objects.ObjectContext.<>c__DisplayClass2a.b__27()
at
System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func1
operation) at
System.Data.Entity.Core.Objects.ObjectContext.SaveChangesInternal(SaveOptions
options, Boolean executeInExistingTransaction) at
System.Data.Entity.Core.Objects.ObjectContext.SaveChanges(SaveOptions
options) at
System.Data.Entity.Internal.InternalContext.SaveChanges() --- End
of inner exception stack trace --- at
System.Data.Entity.Internal.InternalContext.SaveChanges() at
System.Data.Entity.Internal.LazyInternalContext.SaveChanges() at
System.Data.Entity.DbContext.SaveChanges() at
System.Data.Entity.Migrations.DbMigrator.SeedDatabase() at
System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.SeedDatabase()
at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable1
pendingMigrations, String targetMigrationId, String lastMigrationId)
at
System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1
pendingMigrations, String targetMigrationId, String lastMigrationId)
at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String
targetMigration) at
System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.b__d()
at
System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action
mustSucceedToKeepDatabase) at
System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action
mustSucceedToKeepDatabase) at
System.Data.Entity.Migrations.DbMigrator.Update(String
targetMigration) at
System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String
targetMigration) at
System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()

How can f System.Data.Entity.Internal.InternalContext.SaveChanges()

I have a windows service that call a Web Service, then stored the information in my t-sql database. In my pc this service works, but in another pc with the same database I have this error:
[16:06:00] Teresa Gabriele: Errore saveLocalActivity: in System.Data.Entity.Internal.InternalContext.SaveChanges()
in System.Data.Entity.Internal.LazyInternalContext.SaveChanges()
in System.Data.Entity.DbContext.SaveChanges()
in GestoreService.Manager.Impl.AttivitaManagerImpl.saveLocalActivity(LOCAL_PE_Attivita attivita, Boolean saving) in c:\Users\michele.castriotta\Source\Workspaces\Omniacare\software\exercise platform\GestoreService\GestoreService\Manager\Impl\AttivitaManagerImpl.cs:riga 25
[16:06:52] Teresa Gabriele: Errore isAttivitaXMedicoExist: in System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
in System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
in System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
in System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
in System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
in System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite)
in System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
in System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TInterceptionContext,TResult](Func`1 operation, TInterceptionContext interceptionContext, Action`1 executing, Action`1 executed)
in System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
in System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
in System.Data.Entity.Core.Objects.ObjectContext.<>c__DisplayClass57.<ExecuteStoreCommand>b__56()
in System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
in System.Data.Entity.Core.Objects.ObjectContext.<>c__DisplayClass57.<ExecuteStoreCommand>b__55()
in System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
in System.Data.Entity.Core.Objects.ObjectContext.ExecuteStoreCommand(TransactionalBehavior transactionalBehavior, String commandText, Object[] parameters)
in System.Data.Entity.Internal.InternalContext.ExecuteSqlCommand(TransactionalBehavior transactionalBehavior, String sql, Object[] parameters)
in System.Data.Entity.Database.ExecuteSqlCommand(TransactionalBehavior transactionalBehavior, String sql, Object[] parameters)
in System.Data.Entity.Database.ExecuteSqlCommand(String sql, Object[] parameters)
in GestoreService.Manager.Impl.AttivitaManagerImpl.inserAttivitaXMedico(Int32 idAttivita, String codiceFiscaleOperatoreMedico, String username) in c:\Users\michele.castriotta\Source\Workspaces\Omniacare\software\exercise platform\GestoreService\GestoreService\Manager\Impl\AttivitaManagerImpl.cs:riga 192
This is the code:
_db.LOCAL_PE_Attivita.Add(attivita);
int result = _db.SaveChanges(); //LINE 25
if (result > 0)
return true;

The Question is unclear, but I think that error is not in the code.
The log tell that error is in save on DB, but if this application work only on your pc I think (probably) that related to different version of DB.
checks whether this is the problem