TOAD for mssql不能连接

Question

点连接后出现：System.NullReferenceException
未将对象引用设置到对象的实例。
Stack Trace:
   在 Quest.Toad.ConnectionManager.ConnectionControl.get_CanRename()
   在 Quest.Toad.ConnectionManager.ConnectionControl.UpdateActions()
   在 Quest.Toad.ConnectionManager.ConnectionControl..ctor()
   在 Quest.Toad.ConnectionManager.ConnectionForm.InitializeComponent()
   在 Quest.Toad.ConnectionManager.ConnectionForm..ctor(ConnectMediator connectInfo)
   在 Quest.Toad.ConnectionManager.ConnectionForm.ShowConnectionDialog(ConnectMediator connectInfo)
   在 Quest.Toad.ConnectionManager.ConnectionForm.ShowConnectionDialog(ActionEntry entry)

Answer 1

有没有其他的MS SQLSERVER的连接工具呀，给介绍一下的，能用的给分

Answer 2

那个能连接上，我不想用SQLSERVER的客户端，觉得不好用，想用其他的