--- title: "sysdac_instances_internal (Transact-SQL) | Microsoft Docs" ms.custom: "" ms.date: "03/03/2017" ms.prod: sql ms.prod_service: "database-engine" ms.reviewer: "" ms.technology: system-objects ms.topic: "language-reference" f1_keywords: - "sysdac_instances_internal_TSQL" - "sysdac_instances_internal" dev_langs: - "TSQL" helpviewer_keywords: - "sysdac_instances_internal" ms.assetid: d2d52cc4-3463-431a-b779-6fbfdeee1dfc author: "stevestein" ms.author: "sstein" --- # Data-tier Application Tables - sysdac_instances_internal [!INCLUDE[tsql-appliesto-ss2008-xxxx-xxxx-xxx-md](../../includes/tsql-appliesto-ss2008-xxxx-xxxx-xxx-md.md)] Displays one row for each data-tier application (DAC) instance deployed to an instance of the [!INCLUDE[ssDE](../../includes/ssde-md.md)]. This table is stored in the dbo schema in the msdb database. |Column name|Data type|Description| |-----------------|---------------|-----------------| |instance_id|**uniqueidentifier**|Identifier of the DAC instance.| |instance_name|**sysname**|Name of the DAC instance specified when the instance was deployed.| |type_name|**sysname**|Name of the DAC specified when the DAC package was created.| |type_version|**nvarchar(64)**|Version of the DAC specified when the DAC package was created.| |description|**nvarchar(4000)**|A description of the DAC written when the DAC package was created.| |type_stream|**varbinary(max)**|A bit stream that contains the encoded representation of the logical objects, such as tables and views, contained in the DAC.| |date_created|**datetime**|Date and time the DAC instance was created.| |created_by|**sysname**|Login that created the DAC instance| ## Remarks Read-only access to this view is available to all users with permissions to connect to the master database. ## Permissions Requires membership in the sysadmin fixed server role. ## See Also [Data-tier Applications](../../relational-databases/data-tier-applications/data-tier-applications.md) [dbo.sysdac_instances (Transact-SQL)](../../relational-databases/system-catalog-views/data-tier-application-views-dbo-sysdac-instances.md)