NHibernate.Exceptions.GenericADOException为什么？

Question

我有这个

return session.Query<CoursePermission>().Where(x => x.Student.StudentId == studentId).ToList(); 

我得到这个

NHibernate.Exceptions.GenericADOException was unhandled by user code 
    Message=could not execute query 
[ select courseperm0_.PermissionId as Permissi1_3_, courseperm0_.Owner as Owner3_, courseperm0_.Add as Add3_, courseperm0_.Edit as Edit3_, courseperm0_.Delete as Delete3_, courseperm0_.View as View3_, courseperm0_.StudentId as StudentId3_, courseperm0_.CourseId as CourseId3_ from CoursePermissions courseperm0_ where courseperm0_.StudentId=@p0 ] 
    Name:p1 - Value:757f27a2-e997-44f8-b2c2-6c0fd6ee2c2f 
[SQL: select courseperm0_.PermissionId as Permissi1_3_, courseperm0_.Owner as Owner3_, courseperm0_.Add as Add3_, courseperm0_.Edit as Edit3_, courseperm0_.Delete as Delete3_, courseperm0_.View as View3_, courseperm0_.StudentId as StudentId3_, courseperm0_.CourseId as CourseId3_ from CoursePermissions courseperm0_ where courseperm0_.StudentId=@p0] 
    Source=NHibernate 
    SqlString=select courseperm0_.PermissionId as Permissi1_3_, courseperm0_.Owner as Owner3_, courseperm0_.Add as Add3_, courseperm0_.Edit as Edit3_, courseperm0_.Delete as Delete3_, courseperm0_.View as View3_, courseperm0_.StudentId as StudentId3_, courseperm0_.CourseId as CourseId3_ from CoursePermissions courseperm0_ where courseperm0_.StudentId=@p0 
    StackTrace: 
     at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters) 
     at NHibernate.Loader.Loader.ListIgnoreQueryCache(ISessionImplementor session, QueryParameters queryParameters) 
     at NHibernate.Loader.Loader.List(ISessionImplementor session, QueryParameters queryParameters, ISet`1 querySpaces, IType[] resultTypes) 
     at NHibernate.Hql.Ast.ANTLR.Loader.QueryLoader.List(ISessionImplementor session, QueryParameters queryParameters) 
     at NHibernate.Hql.Ast.ANTLR.QueryTranslatorImpl.List(ISessionImplementor session, QueryParameters queryParameters) 
     at NHibernate.Engine.Query.HQLQueryPlan.PerformList(QueryParameters queryParameters, ISessionImplementor session, IList results) 
     at NHibernate.Impl.SessionImpl.List(IQueryExpression queryExpression, QueryParameters queryParameters, IList results) 
     at NHibernate.Impl.SessionImpl.List(IQueryExpression queryExpression, QueryParameters parameters) 
     at NHibernate.Impl.ExpressionQueryImpl.List() 
     at NHibernate.Linq.NhQueryProvider.ExecuteQuery(NhLinqExpression nhLinqExpression, IQuery query, NhLinqExpression nhQuery) 
     at NHibernate.Linq.NhQueryProvider.Execute(Expression expression) 
     at NHibernate.Linq.NhQueryProvider.Execute[TResult](Expression expression) 
     at Remotion.Data.Linq.QueryableBase`1.GetEnumerator() 
     at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) 
     at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) 
     at PermissionLevelRepo.GetPermission(Guid studentId) line 28 
     at For(String email) in :line 63 
     at (String email) in :line 50 
     at PlannerController.Tab() :line 43 
     at lambda_method(Closure , ControllerBase , Object[]) 
     at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) 
     at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) 
     at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) 
     at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() 
     at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) 
    InnerException: System.Data.SqlClient.SqlException 
     Message=Incorrect syntax near the keyword 'Add'. 
     Source=.Net SqlClient Data Provider 
     ErrorCode=-2146232060 
     Class=15 
     LineNumber=1 
     Number=156 
     Procedure="" 
     Server=mssql.frostyserver.com 
     State=1 
     StackTrace: 
      at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) 
      at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) 
      at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() 
      at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) 
      at System.Data.SqlClient.SqlDataReader.ConsumeMetaData() 
      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) 
      at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) 
      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.System.Data.IDbCommand.ExecuteReader() 
      at NHibernate.AdoNet.AbstractBatcher.ExecuteReader(IDbCommand cmd) 
      at NHibernate.Loader.Loader.GetResultSet(IDbCommand st, Boolean autoDiscoverTypes, Boolean callable, RowSelection selection, ISessionImplementor session) 
      at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies) 
      at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies) 
      at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters) 
     InnerException: 

Answer 1

貌似StudentId是Guid。尝试：

return session 
    .Query<CoursePermission>() 
    .Where(x => x.Student.StudentId.Equals(studentId)) 
    .ToList(); 

编辑：内部异常：

Message=Incorrect syntax near the keyword 'Add' 

生成的SQL有一栏叫添加，尝试在你的映射规则命名此。

select courseperm0_.PermissionId as Permissi1_3_, courseperm0_.Owner as Owner3_, courseperm0_.Add as Add3_, ...