---
title: "(Comment) (MDX) | Microsoft Docs"
ms.date: 06/04/2018
ms.prod: sql
ms.technology: analysis-services
ms.custom: mdx
ms.topic: reference
ms.author: owend
ms.reviewer: owend
author: minewiskan
---
# Comment MDX double slash


  Indicates user-provided text.  
  
## Syntax  
  
```  
  
// Comment_Text   
```  
  
#### Parameters  
 *Comment_Text*  
 The string that contains the text of the comment.  
  
## Remarks  
 Comments can be inserted on a separate line, nested at the end of a Multidimensional Expressions (MDX) script line, or nested within an MDX statement. The server does not evaluate the comment.  
  
 Use // for single-line comments only. Comments inserted with // are delimited by the newline character.  
  
 There is no maximum length for comments.  
  
## Examples  
 The following example demonstrates the use of this operator.  
  
```  
// This member returns the gross profit margin for product types  
// and reseller types crossjoined by year.  
SELECT   
    [Date].[Calendar].[Calendar Year].Members *  
      [Reseller].[Reseller Type].Children ON 0,  
    [Product].[Category].[Category].Members ON 1  
FROM // Select from the Adventure Works cube.  
    [Adventure Works]  
WHERE  
    [Measures].[Gross Profit Margin]  
```  
  
## See Also  
 [Comment (MDX)](../mdx/comment-mdx.md)   
 [-- (Comment) (MDX)](../mdx/comment-mdx-operator-reference.md)   
 [MDX Operator Reference (MDX)](../mdx/mdx-operator-reference-mdx.md)