Add PolyBase data virtualization guide and update existing overview (#36598)

Author: MikeRayMSFT

.openpublishing.redirection.json

@@ -50337,7 +50337,7 @@
     },
     {
       "source_path": "docs/relational-databases/polybase/get-started-with-polybase.md",
-      "redirect_url": "/sql/relational-databases/polybase/polybase-guide",
+      "redirect_url": "/sql/relational-databases/polybase/overview",
       "redirect_document_id": false
     },
     {
@@ -66372,7 +66372,7 @@
     },
     {
       "source_path": "docs/relational-databases/polybase/index.md",
-      "redirect_url": "/sql/relational-databases/polybase/polybase-guide",
+      "redirect_url": "/sql/relational-databases/polybase/overview",
       "redirect_document_id": false
     },
     {
@@ -68233,6 +68233,16 @@
       "source_path": "docs/azdata/reference/reference-azdata.md",
       "redirect_url": "/previous-versions/sql/big-data-cluster/reference-azdata",
       "redirect_document_id": false
+    },
+    {
+      "source_path": "docs/relational-databases/polybase/polybase-guide.md",
+      "redirect_url": "/sql/relational-databases/polybase/overview",
+      "redirect_document_id": false
+    },
+    {
+      "source_path": "docs/relational-databases/polybase/data-virtualization-comprehensive-guide.md",
+      "redirect_url": "/sql/relational-databases/polybase/data-virtualization-guide",
+      "redirect_document_id": false
     }
   ]
 }

docs/analytics-platform-system/configure-polybase-connectivity-to-external-data.md

@@ -15,7 +15,7 @@ PolyBase enables your Analytics Platform System (APS) to process Transact-SQL qu
 
 ![PolyBase logical](media/polybase/polybase-logical.png)
 
-PolyBase on APS supports reading and writing to Hadoop (HDFS) file system and Azure Blob Storage. PolyBase also has the ability to push some computation to Hadoop nodes as mapreduce jobs to optimize the overall query performance. PolyBase on APS can operate on delimited text, ORC and Parquet files. See [What is PolyBase](../relational-databases/polybase/polybase-guide.md) for a full description and its capabilities.
+PolyBase on APS supports reading and writing to Hadoop (HDFS) file system and Azure Blob Storage. PolyBase also has the ability to push some computation to Hadoop nodes as mapreduce jobs to optimize the overall query performance. PolyBase on APS can operate on delimited text, ORC and Parquet files. See [What is PolyBase](../relational-databases/polybase/overview.md) for a full description and its capabilities.
 
 > [!NOTE]
 > APS currently only supports standard general purpose v1 locally redundant (LRS) Azure Blob Storage.

docs/analytics-platform-system/polybase-configure-azure-blob-storage.md

@@ -173,4 +173,4 @@ In SQL Server Data Tools (SSDT), external tables are displayed in a separate fol
 ## Next step
 
 > [!div class="nextstepaction"]
-> [Introducing data virtualization with PolyBase](../relational-databases/polybase/polybase-guide.md)
+> [Introducing data virtualization with PolyBase](../relational-databases/polybase/overview.md)

docs/analytics-platform-system/polybase-configure-hadoop.md

@@ -332,4 +332,4 @@ In SQL Server Data Tools, external tables are displayed in a separate folder **E
 ## Related content
 
 - For Hadoop security settings see [configure Hadoop security](polybase-configure-hadoop-security.md).
-- For more information about PolyBase, see the [What is PolyBase?](../relational-databases/polybase/polybase-guide.md).
+- For more information about PolyBase, see the [What is PolyBase?](../relational-databases/polybase/overview.md).

docs/database-engine/configure-windows/allow-polybase-export.md

@@ -18,7 +18,7 @@ The `allow polybase export` server configuration option allows the export of dat
 
 - In [!INCLUDE [sssql22-md](../../includes/sssql22-md.md)] and later versions, the [CREATE EXTERNAL TABLE AS SELECT](../../t-sql/statements/create-external-table-as-select-transact-sql.md) (CETAS) statement requires that you enable `allow polybase export` using `sp_configure`. This setting allows for data to be exported to a CSV or Parquet file. For examples, see [Use CREATE EXTERNAL TABLE AS SELECT exporting data as parquet](../../t-sql/statements/create-external-table-as-select-transact-sql.md#d-use-create-external-table-as-select-exporting-data-as-parquet).
 
-- In [!INCLUDE [sssql19-md](../../includes/sssql19-md.md)] and earlier versions, enabling `allow polybase export` allows Hadoop to export data out of [!INCLUDE [ssnoversion-md](../../includes/ssnoversion-md.md)] to an external table. For more information, see [PolyBase connectors](../../relational-databases/polybase/polybase-guide.md#polybase-connectors) and [Export data](../../relational-databases/polybase/polybase-queries.md#export-data).
+- In [!INCLUDE [sssql19-md](../../includes/sssql19-md.md)] and earlier versions, enabling `allow polybase export` allows Hadoop to export data out of [!INCLUDE [ssnoversion-md](../../includes/ssnoversion-md.md)] to an external table. For more information, see [PolyBase connectors](../../relational-databases/polybase/overview.md#polybase-connectors) and [Export data](../../relational-databases/polybase/polybase-queries.md#export-data).
 
 The possible values are described in the following table:
 
@@ -50,5 +50,5 @@ GO
 ## Related content
 
 - [Exporting data](../../relational-databases/polybase/polybase-configure-hadoop.md#exporting-data)
-- [Data virtualization with PolyBase in SQL Server](../../relational-databases/polybase/polybase-guide.md)
+- [Data virtualization with PolyBase in SQL Server](../../relational-databases/polybase/overview.md)
 - [CREATE EXTERNAL TABLE AS SELECT (CETAS) (Transact-SQL)](../../t-sql/statements/create-external-table-as-select-transact-sql.md)

docs/database-engine/configure-windows/polybase-connectivity-configuration-transact-sql.md

@@ -167,7 +167,7 @@ GO
 
 ## Related content
 
-- [Data virtualization with PolyBase in SQL Server](../../relational-databases/polybase/polybase-guide.md)
+- [Data virtualization with PolyBase in SQL Server](../../relational-databases/polybase/overview.md)
 - [sp_configure (Transact-SQL)](../../relational-databases/system-stored-procedures/sp-configure-transact-sql.md)
 - [CREATE EXTERNAL TABLE (Transact-SQL)](../../t-sql/statements/create-external-table-transact-sql.md)
 - [CREATE EXTERNAL FILE FORMAT (Transact-SQL)](../../t-sql/statements/create-external-file-format-transact-sql.md)

docs/database-engine/configure-windows/polybase-network-encryption-server-configuration-option.md

@@ -81,6 +81,6 @@ Requires `ALTER SETTINGS` server-level permission or membership in the **sysadmi
 ## Related content
 
 - [Exporting data](../../relational-databases/polybase/polybase-configure-hadoop.md#exporting-data)
-- [Data virtualization with PolyBase in SQL Server](../../relational-databases/polybase/polybase-guide.md)
+- [Data virtualization with PolyBase in SQL Server](../../relational-databases/polybase/overview.md)
 - [CREATE EXTERNAL TABLE AS SELECT (CETAS) (Transact-SQL)](../../t-sql/statements/create-external-table-as-select-transact-sql.md)
 - [PolyBase errors and possible solutions](../../relational-databases/polybase/polybase-errors-and-possible-solutions.md)

docs/database-engine/install-windows/install-sql-server-database-engine.md

@@ -56,7 +56,7 @@ The following features are installed when you select **SQL Server Database Engin
     > [!NOTE]  
     > In this release, selecting the **Data Quality Services** check box in setup doesn't install the Data Quality Services (DQS) server. You'll have to perform additional steps post installation to install DQS server. For more information, see [Install Data Quality Services](../../data-quality-services/install-windows/install-data-quality-services.md).
 
-- [Data virtualization with PolyBase in SQL Server](../../relational-databases/polybase/polybase-guide.md) is an optional component. In [!INCLUDE [sssql19-md](../../includes/sssql19-md.md)], a Java connector for HDFS data sources is also available.
+- [Data virtualization with PolyBase in SQL Server](../../relational-databases/polybase/overview.md) is an optional component. In [!INCLUDE [sssql19-md](../../includes/sssql19-md.md)], a Java connector for HDFS data sources is also available.
 
 The following additional features are options for many typical user scenarios:
 

docs/relational-databases/linked-servers/linked-servers-openquery-openrowset-exec-at.md

@@ -39,7 +39,7 @@ Executes the specified pass-through query on the specified linked server. This s
 
 [OPENROWSET (Transact-SQL)](../../t-sql/functions/openrowset-transact-sql.md)
 
-Includes all connection information that is required to access remote data from an OLE DB data source. This method is an alternative to accessing tables in a linked server and is a one-time, ad hoc method of connecting and accessing remote data by using OLE DB. For more frequent references to OLE DB data sources, instead consider using [linked servers](linked-servers-database-engine.md), [PolyBase](../polybase/polybase-guide.md), or direct connections between the two data sources via tools like [SQL Server Integration Services (SSIS)](../../integration-services/sql-server-integration-services.md) or custom applications. 
+Includes all connection information that is required to access remote data from an OLE DB data source. This method is an alternative to accessing tables in a linked server and is a one-time, ad hoc method of connecting and accessing remote data by using OLE DB. For more frequent references to OLE DB data sources, instead consider using [linked servers](linked-servers-database-engine.md), [PolyBase](../polybase/overview.md), or direct connections between the two data sources via tools like [SQL Server Integration Services (SSIS)](../../integration-services/sql-server-integration-services.md) or custom applications. 
 
 In a query, use `OPENROWSET` in the `FROM` clause of a query. You can also use `OPENROWSET` as the target table of an `INSERT`, `UPDATE`, or `DELETE` statement, subject to the capabilities of the OLE DB provider. Although the query might return multiple result sets, `OPENROWSET` returns only the first one.
 

docs/relational-databases/polybase/configure-scale-out-groups-windows.md

@@ -112,4 +112,4 @@ After setup is complete, both machines can function as PolyBase Group head nodes
 ## Related content
 
 - [PolyBase troubleshooting with dynamic management views](/previous-versions/sql/sql-server-2016/mt146389(v=sql.130))
-- [Introducing data virtualization with PolyBase](polybase-guide.md)
+- [Introducing data virtualization with PolyBase](overview.md)