---
title: "ColumnAttributesEnum | Microsoft Docs"
ms.prod: sql
ms.prod_service: connectivity
ms.technology: connectivity
ms.custom: ""
ms.date: "01/19/2017"
ms.reviewer: ""
ms.topic: conceptual
apitype: "COM"
f1_keywords: 
  - "ColumnAttributesEnum"
helpviewer_keywords: 
  - "ColumnAttributesEnum enumeration [ADOX]"
ms.assetid: cd0db27a-1080-40af-a491-3893e7bef9cd
author: MightyPen
ms.author: genemi
---
# ColumnAttributesEnum
Specifies characteristics of a [Column](../../../ado/reference/adox-api/column-object-adox.md).  
  
|Constant|Value|Description|  
|--------------|-----------|-----------------|  
|**adColFixed**|1|The column is a fixed length.|  
|**adColNullable**|2|The column may contain null values.|  
  
## Applies To  
 [Attributes Property (ADOX)](../../../ado/reference/adox-api/attributes-property-adox.md)