Я хочу использовать рабочий процесс Model First в Entity Framework с Oracle SQL.
Я могу создавать новые элементы в БД с помощью Create Controller, но когда я хочу отобразить его, я получаю не очень подробное сообщение об ошибке TTC:
TTC Error
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.Exception: TTC Error
Source Error:
Line 18: public ActionResult Index()
Line 19: {
Line 20: return View(db.VALLALAT.ToList());
Line 21: }
Line 22:
Source File: ...\Controllers\VallalatController.cs Line: 20
Я получал эту ошибку с каждой моделью, которая получила данные в таблице SQL
[Exception: TTC Error]
OracleInternal.TTC.TTCExecuteSql.ReceiveExecuteResponse(Accessor[]& defineAccessors, Accessor[] bindAccessors, Boolean bHasReturningParams, SQLMetaData& sqlMetaData, SqlStatementType statementType, Int64 noOfRowsFetchedLastTime, Int32 noOfRowsToFetch, Int32& noOfRowsFetched, Int64& queryId, Int32 longFetchSize, Int64 initialLOBFetchSize, Int64[] scnFromExecution, Boolean bAllInputBinds, Int32 arrayBindCount, DataUnmarshaller& dataUnmarshaller, MarshalBindParameterValueHelper& marshalBindParamsHelper, Int64[]& rowsAffectedByArrayBind, Boolean bDefineDone, Boolean& bMoreThanOneRowAffectedByDmlWithRetClause, List`1& implicitRSList, Boolean bLOBArrayFetchRequired) +3350
OracleInternal.ServiceObjects.OracleDataReaderImpl.FetchMoreRows(Int32 noOfRowsToFetch, Boolean fillReader, Boolean returnPSTypes) +1511
Oracle.ManagedDataAccess.Client.OracleDataReader.Read() +1365
System.Data.Entity.Core.Common.Internal.Materialization.Shaper`1.StoreRead() +36
[EntityCommandExecutionException: An error occurred while reading from the store provider's data reader. See the inner exception for details.]
System.Data.Entity.Core.Common.Internal.Materialization.Shaper`1.HandleReaderException(Exception e) +145
System.Data.Entity.Core.Common.Internal.Materialization.Shaper`1.StoreRead() +49
System.Data.Entity.Core.Common.Internal.Materialization.SimpleEnumerator.MoveNext() +41
System.Data.Entity.Internal.LazyEnumerator`1.MoveNext() +112
System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) +387
System.Linq.Enumerable.ToList(IEnumerable`1 source) +58
Моя среда:
- Oracle Database 10g Enterprise Edition, выпуск 10.2.0.2.0 - 64bi
- Entity Framework 6.0
- Oracle.ManagedDataAccess & EntityFramework 18.3