Entity Framework throws exception on updates only - Invalid object name 'dbo.BirdBrain.service'


I've created an EF Core model from an existing database and all operations on entities work EXCEPT for updates; on updates EF Core is using an incorrect database name.

eg. When I perform an update I get a SqlException: Invalid object name 'BirdBrain.dbo.services'.. BirdBrainContext is the name of my DbContext, but the database I'm connecting to is BirdBrain_test.

I tried updating from EF Core 2.1 to EF Core 2.2 but the issue persists. When connecting to the production database named BirdBrain the same code functions perfectly.

I am initializing my context using a connection string like the following

Server=****;Database=BirdBrain_test;User Id=****;Password=****;Trusted_Connection=False;Multisubnetfailover=true;

and I do not know how this leads to updates being run against 'BirdBrain.dbo.services' when the database is BirdBrain_test.

Relevant DbContext code

public class BirdBrainContextFactory
    private readonly string _connectionString;

    public BirdBrainContextFactory(string connectionString)
        _connectionString = connectionString;

    public BirdBrainContext Create()
        var optionsBuilder = new DbContextOptionsBuilder<BirdBrainContext>();
        return new BirdBrainContext(optionsBuilder.Options);

public class BirdBrainContext : DbContext
    public BirdBrainContext(DbContextOptions<BirdBrainContext> options)
        : base(options)

    public DbSet<Service> Services { get; set; }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
        modelBuilder.Entity<Service>(entity =>
            entity.HasIndex(e => e.Tag)

            entity.Property(e => e.CreatedAt)

            entity.Property(e => e.UpdatedAt)

The table for the associated I am using the TableAttribute to refer to the table name.

public class Service

Relevant Update code

public Service UpdateService(Service service)
    using (var context = _contextFactory.Create())
        EnforceServiceExists(context, service);
        context.Entry(service).State = EntityState.Modified;
        return service;

Gets, Inserts, and Deletes work on this same table.

  Message=An error occurred while updating the entries. See the inner exception for details.
   at Microsoft.EntityFrameworkCore.Update.ReaderModificationCommandBatch.Execute(IRelationalConnection connection)
   at Microsoft.EntityFrameworkCore.Update.Internal.BatchExecutor.Execute(DbContext _, ValueTuple`2 parameters)
   at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](TState state, Func`3 operation, Func`3 verifySucceeded)
   at Microsoft.EntityFrameworkCore.Update.Internal.BatchExecutor.Execute(IEnumerable`1 commandBatches, IRelationalConnection connection)
   at Microsoft.EntityFrameworkCore.Storage.RelationalDatabase.SaveChanges(IReadOnlyList`1 entries)
   at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.StateManager.SaveChanges(IReadOnlyList`1 entriesToSave)
   at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.StateManager.SaveChanges(Boolean acceptAllChangesOnSuccess)
   at Microsoft.EntityFrameworkCore.DbContext.SaveChanges(Boolean acceptAllChangesOnSuccess)
   at Microsoft.EntityFrameworkCore.DbContext.SaveChanges()
   at DataService.BirdBrainContext.SaveChanges() in C:\git\BirdBrainAPI\src\DataService\BirdBrainContext.cs:line 180

Inner Exception 1:
SqlException: Invalid object name 'BirdBrain.dbo.services'.

EDIT: I added EF Core logging as Ivan Stoev suggested and pasted the results for the update below. It looks like EF is connecting to the BirdBrain_test database and running a UPDATE [services] ... as opposed to UPDATE [BirdBrain].[dbo].[services] as the error would suggest. Still not sure what is going on.

dbug: Microsoft.EntityFrameworkCore.Database.Connection[20001]
      Opened connection to database 'BirdBrain_test' on server '****'.
dbug: Microsoft.EntityFrameworkCore.Database.Transaction[20200]
      Beginning transaction with isolation level 'ReadCommitted'.
dbug: Microsoft.EntityFrameworkCore.Database.Command[20100]
      Executing DbCommand [Parameters=[@p19='?' (DbType = Int32), @p0='?' (DbType = DateTime), ...], CommandType='Text', CommandTimeout='30']
      UPDATE [services] SET [created_at] = @p0, ... , [updated_at] = @p18
      WHERE [id] = @p19;
fail: Microsoft.EntityFrameworkCore.Database.Command[20102]
      Failed executing DbCommand (61ms) [Parameters=[@p19='?' (DbType = Int32), @p0='?' (DbType = DateTime), ...], CommandType='Text', CommandTimeout='30']
      UPDATE [services] SET [created_at] = @p0, ... , [updated_at] = @p18
      WHERE [id] = @p19;
System.Data.SqlClient.SqlException (0x80131904): Invalid object name 'BirdBrain.dbo.services'.
   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)
Error Number:208,State:1,Class:16
asked on Stack Overflow Jul 12, 2019 by Sean Boczulak • edited Jul 24, 2019 by GalAbra

1 Answer


The issue was that there was an underlying update trigger on the database that was using the BirdBrain.dbo.services naming. I tested changing naming to services from BirdBrain.dbo.services and this resolved the error. Ultimately I removed the trigger entirely as the logic it handled was unnecessary at the present date.

To figure this out I added logging to the DbContext as @IvanStoev suggested and confirmed that that EF was in fact targetting the services object correctly and not BirdBrain.dbo.services as I originally believed.

I then connected to the database using SSMS and expanded the table to look at its triggers, which was where I found the offending trigger.

In case you are facing a similar issue, you should check if there are any triggers on the table you are modifying.

answered on Stack Overflow Jul 15, 2019 by Sean Boczulak

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