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Use CData Connect Cloud to connect to and query live Active Directory data from HeidiSQL.
HeidiSQL is an open-source database administration tool that natively supports MariaDB, MySQL, SQL Server, and PostgreSQL. When paired with CData Connect Cloud, HediSQL reach extends to include access to live Active Directory data. This article demonstrates how to connect to Active Directory using Connect Cloud and query Active Directory data in HeidiSQL.
CData Connect Cloud provides a pure SQL Server interface for Active Directory, allowing you to query data from Active Directory without replicating the data to a natively supported database. Using optimized data processing out of the box, CData Connect Cloud pushes all supported SQL operations (filters, JOINs, etc.) directly to Active Directory, leveraging server-side processing to return the requested Active Directory data quickly.
Configure Active Directory Connectivity for HeidiSQL
Connectivity to Active Directory from HeidiSQL is made possible through CData Connect Cloud. To work with Active Directory data from HeidiSQL, we start by creating and configuring a Active Directory connection.
- Log into Connect Cloud, click Connections and click Add Connection
- Select "Active Directory" from the Add Connection panel
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Enter the necessary authentication properties to connect to Active Directory.
To establish a connection, set the following properties:
- Valid User and Password credentials (e.g., Domain\BobF or cn=Bob F,ou=Employees,dc=Domain).
- Server information, including the IP or host name of the Server, as well as the Port.
BaseDN: This will limit the scope of LDAP searches to the height of the distinguished name provided.
Note: Specifying a narrow BaseDN may greatly increase performance; for example, cn=users,dc=domain will only return results contained within cn=users and its children.
- Click Create & Test
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Navigate to the Permissions tab in the Add Active Directory Connection page and update the User-based permissions.


Add a Personal Access Token
If you are connecting from a service, application, platform, or framework that does not support OAuth authentication, you can create a Personal Access Token (PAT) to use for authentication. Best practices would dictate that you create a separate PAT for each service, to maintain granularity of access.
- Click on your username at the top right of the Connect Cloud app and click User Profile.
- On the User Profile page, scroll down to the Personal Access Tokens section and click Create PAT.
- Give your PAT a name and click Create.
- The personal access token is only visible at creation, so be sure to copy it and store it securely for future use.

Connect to Active Directory from HeidiSQL using Connect Cloud
To establish a connection from HeidiSQL to the CData Connect Cloud Virtual SQL Server API, follow these steps.
Create a new HeidiSQL Session
- In the Session Manager, select New in the bottom-left
- Give the new session a descriptive name, e.g. Connect-Cloud-Active Directory

Configure a SQL Server Connection to Connect Cloud
- In the session settings, set the Network type to Microsoft SQL Server (TCP/IP)
- The Library DLL should automatically update to MSOLEDBSQL
- Set the Hostname/IP to tds.cdata.com
- Set the User to your CData Connect Cloud username. This is displayed in the top-right corner of the CData Connect Cloud interface. For example, test@cdata.com
- Set the Password to your PAT created in Connect Cloud in the previous section.
- Set the Port to 14333
Query Active Directory from HeidiSQL
- In the database listing on the left, find your connection to Active Directory configured earlier.
- Expand this connection to view individual tables or data objects present within Active Directory.
- Write custom SQL queries targeting these tables, treating the data source like any SQL Server database, or visually explore each tabular data set by selecting the relevant tables
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