Devart Forums

Hi

EntityFramework Context SaveChanges() leads to an exception (Oracle 12c, .NET 4.6.1).

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. ---> Devart.Data.Oracle.OracleException: ORA-01036: illegal variable name/number
at Devart.Data.Oracle.l.b(cc[] A_0, Byte[] A_1, Hashtable A_2)
at Devart.Data.Oracle.OracleCommand.InternalExecute(CommandBehavior behavior, IDisposable disposable, Int32 startRecord, Int32 maxRecords, Boolean nonQuery)
at Devart.Common.DbCommandBase.ExecuteDbDataReader(CommandBehavior behavior, Boolean nonQuery)
at Devart.Data.Oracle.Entity.m.a(CommandBehavior A_0)
at Devart.Data.Oracle.Entity.m.b(CommandBehavior A_0)
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.Reader(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.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()

Generated (broken) SqlCode:
DECLARE
updatedRowid ROWID;
BEGIN
INSERT INTO P_XXX(VERSION,HIERARCHYLASTMODIFIEDAT,UNIQUEID,ABC,REVIEWED,"COMMENT")VALUES(:p0,:p1,:p2,:p3,:p4,NULL)
RETURNING ROWID INTO updatedRowid;
OPEN ::outParameter FOR SELECT ID FROM P_XXX WHERE ROWID = updatedRowid;
END;

If activating
OracleEntityProviderConfig.Instance.DmlOptions.ParametersAsLiterals = true;
another exception is thrown. Looks like the parameters created \ used by you guys are broken.

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.Entity.Core.EntityCommandCompilationException: An error occurred while preparing the command definition. See the inner exception for details. ---> System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
at Devart.Common.Entity.dy.a(n A_0, n A_1)
at Devart.Common.Entity.e3.a(fj A_0, DbCommand A_1)
at Devart.Common.Entity.eo.a(fj A_0, DbCommandBase A_1)
at Devart.Common.Entity.eo.c()
at Devart.Data.Oracle.Entity.OracleEntityProviderServices.CreateDbCommandDefinition(DbProviderManifest baseProviderManifest, DbCommandTree commandTree)
at System.Data.Entity.Core.Common.DbProviderServices.CreateCommand(DbCommandTree commandTree, DbInterceptionContext interceptionContext)
at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.CreateCommand(DbModificationCommandTree commandTree)
--- End of inner exception stack trace ---
at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.CreateCommand(DbModificationCommandTree commandTree)
at System.Data.Entity.Core.Mapping.Update.Internal.DynamicUpdateCommand.CreateCommand(Dictionary`2 identifierValues)
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.Core.Objects.ObjectContext.SaveChangesInternal(SaveOptions options, Boolean executeInExistingTransaction)
at System.Data.Entity.Internal.InternalContext.SaveChanges()

Thanks.

We have reproduced the issue with identity properties. We will notify you when it is fixed.

The bug with generating INSERT statements for the tables with identity column is fixed. We will notify you when the corresponding build of dotConnect for Oracle is available for download.

New build of dotConnect for Oracle 9.0.12 is available for download now: http://forums.devart.com/viewtopic.php?f=1&t=33635.