Connect to Dynamics 365 Business Central Data as an External Data Source using PolyBase

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 Dynamics 365 Business Central, you get access to your Dynamics 365 Business Central data directly alongside your SQL Server data. This article describes creating an external data source and external tables to grant access to live Dynamics 365 Business Central data using T-SQL queries.

NOTE: PolyBase is only available on SQL Server 19 and above.

CData Connect AI provides a pure SQL Server interface for Dynamics 365 Business Central, allowing you to query data from Dynamics 365 Business Central without replicating the data to a natively supported database. Using optimized data processing out of the box, CData Connect AI pushes all supported SQL operations (filters, JOINs, etc.) directly to Dynamics 365 Business Central, leveraging server-side processing to return the requested Dynamics 365 Business Central data quickly.

Configure Dynamics 365 Business Central Connectivity for PolyBase

Connectivity to Dynamics 365 Business Central from PolyBase is made possible through CData Connect AI. To work with Dynamics 365 Business Central data from PolyBase, we start by creating and configuring a Dynamics 365 Business Central connection.

1. Log into Connect AI, click Sources, and then click Add Connection
👁 Adding a Connection

2. Select "Dynamics 365 Business Central" from the Add Connection panel
👁 Selecting a data source

3. Enter the necessary authentication properties to connect to Dynamics 365 Business Central.

   To authenticate to Dynamics 365 Business Central, you must select an AuthScheme and provide the required properties (OAuth by default).

   All Methods

   Specify the . If you have multiple companies in your organization, you must also specify the to indicate which company you would like to connect to. does not need to be specified if you have only one company.

   Access Key

   To authenticate with an Access Key, set AuthScheme to "AccessKey" and provide the and properties.

   To obtain the and values, navigate to the Users page in Dynamics 365 Business Central and then click on Edit. The User Name and Web Service Access Key values are what you will enter as the and connection string properties. Note that the User Name is not your email address. It is a shortened user name.

   If you wish to authenticate through other methods, refer to the Help documentation.

   👁 Configuring a connection (Salesforce is shown)
   
4. Click Save & Test
5. Navigate to the Permissions tab in the Add Dynamics 365 Business Central Connection page and update the User-based permissions. 👁 Updating permissions
   

Add a Personal Access Token

When connecting to Connect AI through the REST API, the OData API, or the Virtual SQL Server, a Personal Access Token (PAT) is used to authenticate the connection to Connect AI. It is best practice to create a separate PAT for each service to maintain granularity of access.

1. Click on the Gear icon () at the top right of the Connect AI app to open the settings page.
2. On the Settings page, go to the Access Tokens section and click Create PAT.
3. Give the PAT a name and click Create. 👁 Creating a new PAT
   
4. The personal access token is only visible at creation, so be sure to copy it and store it securely for future use.

With the connection configured and a PAT generated, you are ready to connect to Dynamics 365 Business Central data from Polybase.

Create an External Data Source for Dynamics 365 Business Central Data

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

Creating a Credential Database

Execute the following SQL command to create credentials for the external data source connected to Dynamics 365 Business Central data.

NOTE: Set IDENTITY to your Connect AI username and set SECRET to your Personal Access Token.

CREATE DATABASE SCOPED CREDENTIAL ConnectCloudCredentials
WITH IDENTITY = 'yourusername', SECRET = 'yourPAT';

Create an External Data Source for Dynamics 365 Business Central

Execute a CREATE EXTERNAL DATA SOURCE SQL command to create an external data source for Dynamics 365 Business Central with PolyBase:

CREATE EXTERNAL DATA SOURCE ConnectCloudInstance
WITH ( 
 LOCATION = 'sqlserver://tds.cdata.com:14333',
 PUSHDOWN = ON,
 CREDENTIAL = ConnectCloudCredentials
);

Create External Tables for Dynamics 365 Business Central

After creating the external data source, use CREATE EXTERNAL TABLE statements to link to Dynamics 365 Business Central data from your SQL Server instance. The table column definitions must match those exposed by CData Connect AI. You can use the Data Explorer in Connect AI to see the table definition.

👁 Table definition in the Data Explorer (Salesforce is shown)

Sample CREATE TABLE Statement

Execute a CREATE EXTERNAL TABLE SQL command to create the external table(s), using the collation and setting the LOCATION to three-part notation for the connection, catalog, and table. The statement to create an external table based on a Dynamics 365 Business Central Accounts would look similar to the following.

CREATE EXTERNAL TABLE Accounts(
 accountid COLLATE [nvarchar](255) NULL,
 Name COLLATE [nvarchar](255) NULL,
 ...
) WITH ( 
 LOCATION='D365BusinessCentral1.D365BusinessCentral.Accounts',
 DATA_SOURCE=ConnectCloudInstance
);

Having created external tables for Dynamics 365 Business Central in your SQL Server instance, you are now able to query local and remote data simultaneously. To get live data access to hundreds of SaaS, Big Data, and NoSQL sources directly from your SQL Server database, try CData Connect AI today!