oracle 事務

using (var dbTransaction = _context.Database.BeginTransaction())
            {
                try
                {

                    
                    _context.SaveChanges();

                    dbTransaction.Commit();
                    result.Result = true;
                    result.Message = Constants.Return_Success;
                }
                catch (Exception ex)
                {
                    dbTransaction.Rollback();
                    result.Message = Constants.Return_Failed;
                    throw ex;
                }
            }