January 8, 2025

How to Connect dbt Cloud to Microsoft SQL Server

Explore how dbt Cloud enhances data transformations with dbt Core and the dbt-sqlserver adapter for SQL Server integration.
Dexter Chu
Head of Marketing

What is dbt Cloud, and how does it relate to Microsoft SQL Server?

dbt Cloud is a hosted service designed to simplify the process of data transformation, empowering analytics engineering teams to build and manage data transformations. Although it enhances the capabilities provided by dbt Core, particularly for teams that require collaboration, it does not natively support direct connections to Microsoft SQL Server. Instead, dbt Cloud relies on adapters to connect to various databases, and for SQL Server, the dbt-sqlserver adapter is utilized. However, this adapter is not supported by dbt Cloud, which poses a limitation for those seeking to use dbt Cloud with SQL Server. For those interested in exploring other data platforms, dbt Cloud offers several connection options.

The dbt-sqlserver adapter is compatible with dbt Core 0.14.0 and newer versions, providing a bridge between dbt's transformation capabilities and SQL Server's database management features. This setup supports a range of SQL Server versions, including 2016, 2017, 2019, 2022, and the Azure SQL Database.

How do you install the dbt-sqlserver adapter?

Installing the dbt-sqlserver adapter is straightforward, but it must be noted that from version 1.8 onwards, the adapter doesn't automatically include dbt-core. This requires a separate installation step. The installation process involves using pip, the package installer for Python, ensuring that Python is installed on your system and up-to-date.

The installation command is as follows:

pip install dbt-sqlserver

This installation is essential for enabling dbt Core to interface with SQL Server databases, given the lack of native support in dbt Cloud.

What are the supported configurations for the dbt-sqlserver adapter?

The dbt-sqlserver adapter supports a variety of configurations, making it versatile for different SQL Server environments. Understanding these configurations is crucial for successful integration.

Authentication methods

The adapter offers several methods for authentication, which are pivotal for accessing databases securely:

  • SQL Server Credentials: Standard username and password.
  • Windows Credentials: Integrated Windows Authentication.
  • Microsoft Entra ID (Azure AD): Multiple options such as username and password, service principal, managed identity, and environment-based authentication.

These methods cater to diverse authentication needs, from simple login credentials to more complex identity services provided by Azure.

How is connection encryption handled?

Security is a primary concern when connecting to databases. With ODBC Driver 18, connections are encrypted by default, ensuring data in transit is protected. This encryption feature is enabled with the encrypt parameter set to true. Additionally, server certificates are validated by default (trust_cert is false), further bolstering security by verifying the server's identity.

What is a typical configuration example in profiles.yml?

To configure dbt for SQL Server, you'll need to edit the profiles.yml file. Below is an example configuration that outlines the fundamental parameters:

your_profile_name:
target: dev
outputs:
dev:
type: sqlserver
driver: 'ODBC Driver 18 for SQL Server'
server: hostname or IP of your server
port: 1433
database: exampledb
schema: schema_name
authentication: ActiveDirectoryPassword
user: bill.gates@microsoft.com
password: iheartopensource

Explanation of fields

  • type: Specifies the adapter type, here sqlserver.
  • driver: The ODBC driver version, recommended as 'ODBC Driver 18 for SQL Server'.
  • server: The server's hostname or IP address.
  • port: The default is 1433, the standard port for SQL Server connections.
  • database & schema: Names of the database and schema to connect to.
  • authentication: Specifies the method of authentication, such as ActiveDirectoryPassword.
  • user & password: Credentials for accessing the database.

These parameters should be adjusted according to your specific environment and security requirements.

What are the prerequisites for connecting dbt to SQL Server?

Before establishing a connection between dbt and SQL Server, certain prerequisites must be met to ensure successful connectivity. The essential requirements include the installation of the ODBC driver, especially version 18, and the installation of ODBC header files on Linux systems like Debian/Ubuntu.

For Linux systems, you can install the ODBC header files using:

sudo apt install unixodbc-dev

Meeting these prerequisites ensures that your system can support the necessary drivers and dependencies for successful connectivity.

How does this setup support different SQL Server environments?

The flexibility of the dbt-sqlserver adapter makes it suitable for both on-premise SQL Server deployments and Azure SQL environments. This versatility enables organizations to leverage the power of dbt's data transformation capabilities across diverse SQL Server infrastructures. For users interested in connecting dbt Cloud to Microsoft Fabric, similar configurations can be applied.

Comparison: On-Premise vs. Azure SQL Database

Feature On-Premise SQL Server Azure SQL Database Deployment Local server infrastructure Cloud-based platform by Microsoft Scalability Limited by hardware Highly scalable and flexible Maintenance Requires internal IT support Managed by Microsoft Cost Structure Capital expenditure Pay-as-you-go model Authentication Methods SQL Server, Windows Credentials Azure AD, Managed Identity

This table highlights the differences in deployment, scalability, and maintenance between on-premise SQL Server and Azure SQL Database, illustrating how the dbt-sqlserver adapter can adapt to each environment's unique characteristics.

What are the challenges in using dbt Cloud with SQL Server?

Despite the capabilities of the dbt-sqlserver adapter, several challenges exist when integrating dbt Cloud with SQL Server. The lack of direct support in dbt Cloud necessitates reliance on dbt Core, which can complicate the setup process. Additionally, the detailed configuration required in profiles.yml and dependency management can be cumbersome, particularly for teams unfamiliar with dbt or SQL Server configurations.

Security considerations are also paramount, especially in cloud environments, where ensuring secure connections demands careful attention to encryption and authentication methods. These challenges necessitate a thorough understanding of both dbt and SQL Server to ensure successful integration and operation.

What is Secoda, and how does it enhance data management?

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How does Secoda improve data discovery and lineage tracking?

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AI-powered insights

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How does Secoda streamline data governance and collaboration?

Secoda enables streamlined data governance by centralizing processes, making it easier to manage data access and compliance. It provides granular access control and data quality checks to ensure data security and compliance. Furthermore, Secoda's collaboration features allow teams to share data information, document data assets, and collaborate on data governance practices, ultimately enhancing data quality and collaboration within teams.

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