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title: "sys.dm_exec_external_operations (Transact-SQL) | Microsoft Docs"
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---
# sys.dm_exec_external_operations (Transact-SQL)
[!INCLUDE[tsql-appliesto-ss2016-xxxx-asdw-pdw_md](../../includes/tsql-appliesto-ss2016-xxxx-asdw-pdw-md.md)]

  Captures information about external PolyBase operations.  
  
|Column Name|Data Type|Description|Range|  
|-----------------|---------------|-----------------|-----------|  
|execution_id|**nvarchar(32)**|Unique query identifier associated with PolyBase query|See ID in [sys.dm_exec_requests (Transact-SQL)](../../relational-databases/system-dynamic-management-views/sys-dm-exec-requests-transact-sql.md)|  
|step_index|**int**|Index of the query step|See step_index in [sys.dm_exec_distributed_request_steps (Transact-SQL)](../../relational-databases/system-dynamic-management-views/sys-dm-exec-distributed-request-steps-transact-sql.md)|  
|operation_ type|**nvarchar(128)**|Describes a Hadoop operation or other external operation|‘External Hadoop Operation’|  
|operation_ name|**nvarchar(4000)**|Indicates how the status of job in percentage (how much is the input consumed)|0-1 – multiplied by factor 100 (completed)|  
|map_  progress|**float**|Indicates how the status of a reduce job in percentage, if any|0-1 – multiplied by factor 100 (completed)|  
  
## See Also  
 [PolyBase troubleshooting with dynamic management views](http://msdn.microsoft.com/library/ce9078b7-a750-4f47-b23e-90b83b783d80)   
 [Dynamic Management Views and Functions (Transact-SQL)](~/relational-databases/system-dynamic-management-views/system-dynamic-management-views.md)   
 [Database Related Dynamic Management Views (Transact-SQL)](../../relational-databases/system-dynamic-management-views/database-related-dynamic-management-views-transact-sql.md)