我试图对一个对象集执行一个FirstOrDefault()查询,然后抛出一个奇怪的异常:private RecordObject GetRecordByID(int recID)at Oracle.DataAccess.Client.OracleDataReader.ChangeType(Object sourceValue, Type targetType)
at O
StackTrace at Oracle.ManagedDataAccess.Client.OracleDataReader.GetValuei)
at System.Data.Entity.Core.Common.Internal.Materialization.Shaper.ErrorHandlingValueReader`1.GetValue