---
title: "Command Window | Microsoft Docs"
ms.custom: ""
ms.date: "03/14/2017"
ms.prod: "sql-server-2016"
ms.reviewer: ""
ms.suite: ""
ms.technology: 
  - "database-engine"
ms.tgt_pltfrm: ""
ms.topic: "article"
f1_keywords: 
  - "VS.CommandWindow"
helpviewer_keywords: 
  - "Command Window [Transact-SQL]"
ms.assetid: e567ebf9-0793-451b-92c7-26193a02d9da
caps.latest.revision: 14
author: "BYHAM"
ms.author: "rickbyh"
manager: "jhubbard"
---
# Transact-SQL Debugger - Command Window
  Use the **CommandWindow** to run commands, such as debug and edit commands, against the code in the [!INCLUDE[ssDEnoversion](../../includes/ssdenoversion-md.md)] Query Editor window that is currently being debugged. You must be in debug mode to use the **Command Window**. The [!INCLUDE[tsql](../../includes/tsql-md.md)] debugger supports many of the commands that are also supported in the [!INCLUDE[msCoName](../../includes/msconame-md.md)] [!INCLUDE[vsprvs](../../includes/vsprvs-md.md)] **Command** window. For more information, see [Visual Studio Command Window](http://go.microsoft.com/fwlink/?LinkId=112007).  
  
## Task List  
 **To access the Command Window**  
  
-   On the **Debug** menu, click **Start Debugging**.  
  
 **To print the value of a variable**  
  
-   In the **CommandWindow**, type **Debug.Print \<VariableName>**, and then press ENTER.  
  
 **To list information about the current thread**  
  
-   In the **CommandWindow**, type **Debug.ListThread**, and then press ENTER.  
  
 **To add a variable to the QuickWatch window**  
  
-   In the **CommandWindow**, type **Debug.QuickWatch \<VariableName>**, and then press ENTER.  
  
## See Also  
 [Transact-SQL Debugger](../../relational-databases/scripting/transact-sql-debugger.md)