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Connect to OneNote as an External Data Source using PolyBase

Use the CData ODBC Driver for OneNote and PolyBase to create an external data source in SQL Server 2019 with access to live OneNote data.

PolyBase for SQL Server allows you to query external data by using the same Transact-SQL syntax used to query a database table. When paired with the CData ODBC Driver for OneNote, you get access to your OneNote data directly alongside your SQL Server data. This article walks through creating an external data source and external tables to grant access to live OneNote data using T-SQL queries.

The CData ODBC drivers offer unmatched performance for interacting with live OneNote data using PolyBase due to optimized data processing built into the driver. When you issue complex SQL queries from SQL Server to OneNote, the driver pushes down supported SQL operations, like filters and aggregations, directly to OneNote and utilizes the embedded SQL engine to process unsupported operations (often SQL functions and JOIN operations) client-side. And with PolyBase, you can also join SQL Server data with OneNote data, using a single query to pull data from distributed sources.

Connect to OneNote

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs. To create an external data source in SQL Server using PolyBase, configure a System DSN (CData OneNote Sys is created automatically).

OneNote uses the OAuth authentication standard. To authenticate using OAuth, you will need to create an app to obtain the OAuthClientId, OAuthClientSecret, and CallbackURL connection properties. See the Help documentation for more information.

Click "Test Connection" to ensure that the DSN is connected to OneNote properly. Navigate to the Tables tab to review the table definitions for OneNote.

Create an External Data Source for OneNote Data

After configuring the connection, you need to create a master encryption key and a credential database for the external data source.

Creating a Master Encryption Key

Execute the following SQL command to create a new master key, 'ENCRYPTION,' to encrypt the credentials for the external data source.

CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'password';

Creating a Credential Database

Execute the following SQL command to create credentials for the external data source connected to OneNote data.

NOTE: Since OneNote does not require a User or Password to authenticate, you may use whatever values you wish for IDENTITY and SECRET.

CREATE DATABASE SCOPED CREDENTIAL onenote_creds
WITH IDENTITY = 'username', SECRET = 'password';

Create an External Data Source for OneNote

Execute the following SQL command to create an external data source for OneNote with PolyBase, using the DSN and credentials configured earlier.

For OneNote, set SERVERNAME to 'localhost' or '127.0.0.1' and leave PORT empty. PUSHDOWN is set to ON by default, meaning the ODBC Driver can leverage server-side processing for complex queries.

CREATE EXTERNAL DATA SOURCE cdata_onenote_source
WITH ( 
  LOCATION = 'odbc://SERVERNAME[:PORT]',
  CONNECTION_OPTIONS = 'DSN=CData OneNote Sys',
  -- PUSHDOWN = ON | OFF,
  CREDENTIAL = onenote_creds
);

Create External Tables for OneNote

After creating the external data source, use CREATE EXTERNAL TABLE statements to link to OneNote data from your SQL Server instance. The table column definitions must match those exposed by the CData ODBC Driver for OneNote. You can refer to the Tables tab of the DSN Configuration Wizard to see the table definition.

Sample CREATE TABLE Statement

The statement to create an external table based on a OneNote Notebooks would look similar to the following:

CREATE EXTERNAL TABLE Notebooks(
  Id [nvarchar](255) NULL,
  notebook_displayName [nvarchar](255) NULL,
  ...
) WITH ( 
  LOCATION='Notebooks',
  DATA_SOURCE=cdata_onenote_source
);

Having created external tables for OneNote in your SQL Server instance, you are now able to query local and remote data simultaneously. Thanks to built-in query processing in the CData ODBC Driver, you know that as much query processing as possible is being pushed to OneNote, freeing up local resources and computing power. Download a free, 30-day trial of the ODBC Driver for OneNote and start working with live OneNote data alongside your SQL Server data today.