---
title: "Command Window | Microsoft Docs"
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ms.date: "03/14/2017"
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  - "Command Window [Transact-SQL]"
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---
# Transact-SQL Debugger - Command Window
[!INCLUDE[appliesto-ss-asdb-asdw-pdw-md](../../includes/appliesto-ss-asdb-asdw-pdw-md.md)]
  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)