Merge pull request #19469 from julieMSFT/20210602_dmvs6

updates to DMVs for Azure Synapse

Author: jborsecnik

docs/includes/synapse-analytics-dedicated-unsupported-syntax.md

@@ -0,0 +1 @@
+This syntax is not supported by dedicated SQL pool in Azure Synapse Analytics.

docs/relational-databases/system-dynamic-management-views/sys-dm-exec-connections-transact-sql.md

@@ -20,13 +20,17 @@ helpviewer_keywords:
 ms.assetid: 6bd46fe1-417d-452d-a9e6-5375ee8690d8
 author: WilliamDAssafMSFT
 ms.author: wiassaf
-monikerRange: "=azuresqldb-current||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current"
+monikerRange: "=azuresqldb-current||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current|| = azure-sqldw-latest"
 ---
 # sys.dm_exec_connections (Transact-SQL)
-[!INCLUDE [SQL Server SQL Database](../../includes/applies-to-version/sql-asdb.md)]
 
-  Returns information about the connections established to this instance of [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] and the details of each connection. Returns server wide connection information for SQL Server. Returns current database connection information for SQL Database.  
- 
+[!INCLUDE [sql-asdb-asa](../../includes/applies-to-version/sql-asdb-asa.md)]
+
+Returns information about the connections established to this instance of [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] and the details of each connection. Returns server wide connection information for SQL Server. Returns current database connection information for SQL Database.
+
+> [!NOTE]  
+> To call this from dedicated SQL pool in [!INCLUDE[ssSDWfull](../../includes/sssdwfull-md.md)] or [!INCLUDE[ssPDW](../../includes/sspdw-md.md)], see [sys.dm_pdw_exec_connections (Transact-SQL)](sys-dm-pdw-exec-connections-transact-sql.md). For serverless SQL pool use **sys.dm_exec_connections**.
+
 |Column name|Data type|Description|  
 |-----------------|---------------|-----------------|  
 |session_id|**int**|Identifies the session associated with this connection. Is nullable.|  

docs/relational-databases/system-dynamic-management-views/sys-dm-exec-query-stats-transact-sql.md

@@ -29,8 +29,7 @@ Returns aggregate performance statistics for cached query plans in [!INCLUDE[ssN
 
 > [!NOTE]
 > - The results of **sys.dm_exec_query_stats**  may vary with each execution as the data only reflects finished queries, and not ones still in-flight.
-> - To call this from [!INCLUDE[ssSDWfull](../../includes/sssdwfull-md.md)] or [!INCLUDE[ssPDW](../../includes/sspdw-md.md)], use the name **sys.dm_pdw_nodes_exec_query_stats**. [!INCLUDE[synapse-analytics-od-unsupported-syntax](../../includes/synapse-analytics-od-unsupported-syntax.md)]   
-
+> - To call this from dedicated SQL pool in [!INCLUDE[ssSDWfull](../../includes/sssdwfull-md.md)] or [!INCLUDE[ssPDW](../../includes/sspdw-md.md)], use the name **sys.dm_pdw_nodes_exec_query_stats**. For serverless SQL pool use **sys.dm_exec_query_stats**.
   
 |Column name|Data type|Description|  
 |-----------------|---------------|-----------------|  

docs/relational-databases/system-dynamic-management-views/sys-dm-exec-requests-transact-sql.md

@@ -20,14 +20,17 @@ ms.assetid: 4161dc57-f3e7-4492-8972-8cfb77b29643
 author: pmasl
 ms.author: pelopes
 ms.reviewer: sstein
-monikerRange: "=azuresqldb-current||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current"
+monikerRange: "=azuresqldb-current||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current|| = azure-sqldw-latest"
 ---
 # sys.dm_exec_requests (Transact-SQL)
 
-[!INCLUDE [SQL Server SQL Database](../../includes/applies-to-version/sql-asdb.md)]
+[!INCLUDE [sql-asdb-asa](../../includes/applies-to-version/sql-asdb-asa.md)]
 
 Returns information about each request that is executing in [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)]. For more information about requests, see the [Thread and Task Architecture Guide](../../relational-databases/thread-and-task-architecture-guide.md).
-   
+
+> [!NOTE]
+> To call this from dedicated SQL pool in [!INCLUDE[ssSDWfull](../../includes/sssdwfull-md.md)] or [!INCLUDE[ssPDW](../../includes/sspdw-md.md)], see [sys.dm_pdw_exec_requests  (Transact-SQL)](sys-dm-pdw-exec-requests-transact-sql.md). For serverless SQL pool use `sys.dm_exec_requests`.
+
 |Column name|Data type|Description|  
 |-----------------|---------------|-----------------|  
 |session_id|**smallint**|ID of the session to which this request is related. Is not nullable.|  

docs/relational-databases/system-dynamic-management-views/sys-dm-exec-sessions-transact-sql.md

@@ -25,11 +25,14 @@ monikerRange: "=azuresqldb-current||>=sql-server-2016||>=sql-server-linux-2017||
 # sys.dm_exec_sessions (Transact-SQL)
 [!INCLUDE [sql-asdb-asa-pdw](../../includes/applies-to-version/sql-asdb-asa-pdw.md)]
 
-  Returns one row per authenticated session on [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)]. sys.dm_exec_sessions is a server-scope view that shows information about all active user connections and internal tasks. This information includes client version, client program name, client login time, login user, current session setting, and more. Use sys.dm_exec_sessions to first view the current system load and to identify a session of interest, and then learn more information about that session by using other dynamic management views or dynamic management functions.  
+Returns one row per authenticated session on [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)]. `sys.dm_exec_sessions` is a server-scope view that shows information about all active user connections and internal tasks. This information includes client version, client program name, client login time, login user, current session setting, and more. Use `sys.dm_exec_sessions` to first view the current system load and to identify a session of interest, and then learn more information about that session by using other dynamic management views or dynamic management functions.  
+
 
- The sys.dm_exec_connections, sys.dm_exec_sessions, and sys.dm_exec_requests dynamic management views map to the [sys.sysprocesses](../../relational-databases/system-compatibility-views/sys-sysprocesses-transact-sql.md) system table.  
+The `sys.dm_exec_connections`, `sys.dm_exec_sessions`, and `sys.dm_exec_requests` dynamic management views map to the deprecated [sys.sysprocesses](../../relational-databases/system-compatibility-views/sys-sysprocesses-transact-sql.md) system compatibility view.  
+
 
-> **NOTE:** To call this from [!INCLUDE[ssSDWfull](../../includes/sssdwfull-md.md)] or [!INCLUDE[ssPDW](../../includes/sspdw-md.md)], use the name **sys.dm_pdw_nodes_exec_sessions**. [!INCLUDE[synapse-analytics-od-unsupported-syntax](../../includes/synapse-analytics-od-unsupported-syntax.md)]  
+> [!NOTE]
+> To call this from dedicated SQL pool in [!INCLUDE[ssSDWfull](../../includes/sssdwfull-md.md)] or [!INCLUDE[ssPDW](../../includes/sspdw-md.md)], see [sys.dm_pdw_nodes_exec_sessions](sys-dm-pdw-exec-sessions-transact-sql.md). For serverless SQL pool use `sys.dm_exec_sessions`.
   
 |Column name|Data type|Description and version-specific information|  
 |-----------------|---------------|-----------------|  
@@ -185,4 +188,3 @@ WHERE c.session_id = @@SPID;
 
 
 
-

docs/relational-databases/system-dynamic-management-views/sys-dm-pdw-exec-connections-transact-sql.md

@@ -20,7 +20,7 @@ monikerRange: ">= aps-pdw-2016 || = azure-sqldw-latest"
   Returns information about the connections established to this instance of [!INCLUDE[ssSDW](../../includes/sssdw-md.md)] and the details of each connection. 
 
 > [!NOTE]
-> [!INCLUDE[synapse-analytics-od-unsupported-syntax](../../includes/synapse-analytics-od-unsupported-syntax.md)]
+> [!INCLUDE[synapse-analytics-od-unsupported-syntax](../../includes/synapse-analytics-od-unsupported-syntax.md)] For serverless SQL pool use [sys.dm_exec_connections (Transact-SQL)](sys-dm-exec-connections-transact-sql.md).
  
 |Column name|Data type|Description|  
 |-----------------|---------------|-----------------|  

docs/relational-databases/system-dynamic-management-views/sys-dm-pdw-exec-requests-transact-sql.md

@@ -18,10 +18,10 @@ monikerRange: ">= aps-pdw-2016 || = azure-sqldw-latest"
 
 [!INCLUDE[applies-to-version/asa-pdw](../../includes/applies-to-version/asa-pdw.md)]
 
-  Holds information about all requests currently or recently active in [!INCLUDE[ssSDW](../../includes/sssdw-md.md)]. It lists one row per request/query. 
+Holds information about all requests currently or recently active in [!INCLUDE[ssSDW](../../includes/sssdw-md.md)]. It lists one row per request/query. 
 
 > [!NOTE]
-> [!INCLUDE[synapse-analytics-od-unsupported-syntax](../../includes/synapse-analytics-od-unsupported-syntax.md)] 
+> [!INCLUDE[synapse-analytics-od-unsupported-syntax](../../includes/synapse-analytics-od-unsupported-syntax.md)] For serverless SQL pool use [sys.dm_exec_requests (Transact-SQL)](sys-dm-exec-requests-transact-sql.md).
   
 |Column Name|Data Type|Description|Range|  
 |-----------------|---------------|-----------------|-----------|  

docs/relational-databases/system-dynamic-management-views/sys-dm-pdw-exec-sessions-transact-sql.md

@@ -20,21 +20,21 @@ monikerRange: ">= aps-pdw-2016 || = azure-sqldw-latest"
   Holds information about all sessions currently or recently open on the appliance. It lists one row per session. 
 
 > [!NOTE]
-> [!INCLUDE[synapse-analytics-od-unsupported-syntax](../../includes/synapse-analytics-od-unsupported-syntax.md)] 
+> [!INCLUDE[synapse-analytics-od-unsupported-syntax](../../includes/synapse-analytics-od-unsupported-syntax.md)] For serverless SQL pool use [sys.dm_exec_sessions (Transact-SQL)](sys-dm-exec-sessions-transact-sql.md).
   
 |Column Name|Data Type|Description|Range|  
 |-----------------|---------------|-----------------|-----------|  
-|session_id|**nvarchar(32)**|The id of the current query or the last query run (if the session is TERMINATED and the query was executing at time of termination). Key for this view.|Unique across all sessions in the system.|  
+|session_id|**nvarchar(32)**| The ID of of the current query or the last query run (if the session is TERMINATED and the query was executing at time of termination). Key for this view.|Unique across all sessions in the system.|  
 |status|**nvarchar(10)**|For current sessions, identifies whether the session is currently active or idle. For past sessions, the session status may show closed or killed (if the session was forcibly closed).|'ACTIVE', 'CLOSED', 'IDLE', 'TERMINATED'|  
-|request_id|**nvarchar(32)**|The id of the current query or last query run.|Unique across all requests in the system. Null if none has been run.|  
+|request_id|**nvarchar(32)**|The ID of the current query or last query run.|Unique across all requests in the system. Null if none has been run.|  
 |security_id|**varbinary(85)**|Security ID of the principal running the session.||  
 |login_name|**nvarchar(128)**|The login name of the principal running the session.|Any string conforming to the user naming conventions.|  
 |login_time|**datetime**|Date and time at which the user logged in and this session was created.|Valid **datetime** before current time.|  
 |query_count|**int**|Captures the number of queries/requeststhis session has run since creation.|Greater than or equal to 0.|  
 |is_transactional|**bit**|Captures whether a session is currently within a transaction or not.|0 for auto-commit, 1 for transactional.|  
 |client_id|**nvarchar(255)**|Captures client information for the session.|Any valid string.|  
 |app_name|**nvarchar(255)**|Captures application name information optionally set as part of the connection process.|Any valid string.|  
-|sql_spid|**int**|The id number of the SPID. Use the `session_id` this session. Use the `sql_spid` column to join to **sys.dm_pdw_nodes_exec_sessions**.<br /><br /> **\*\* Warning \*\*** This column contains closed SPIDs.||  
+|sql_spid|**int**|The IDs column contains closed SPIDs.||  
 
  For information about the maximum rows retained by this view, see the Metadata section in the [Capacity limits](/azure/sql-data-warehouse/sql-data-warehouse-service-capacity-limits#metadata) topic.