Quickstart for dbt and Microsoft Fabric

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Introduction

In this quickstart guide, you'll learn how to use dbt with Microsoft Fabric. It will show you how to:

• Load the Jaffle Shop sample data (provided by dbt Labs) into your Microsoft Fabric warehouse.
• Connect dbt to Microsoft Fabric.
• Turn a sample query into a model in your dbt project. A model in dbt is a SELECT statement.
• Add tests to your models.
• Document your models.
• Schedule a job to run.

Prerequisites

• You have a dbt account.
• You have started the Microsoft Fabric (Preview) trial. For details, refer to Microsoft Fabric (Preview) trial in the Microsoft docs.
• As a Microsoft admin, you’ve enabled service principal authentication. You must add the service principal to the Microsoft Fabric workspace with either a Member (recommended) or Admin permission set. The service principal must also have CONNECT privleges to the database in the warehouse. For details, refer to Enable service principal authentication in the Microsoft docs. dbt needs these authentication credentials to connect to Microsoft Fabric.

Related content

• dbt Learn courses
• About continuous integration jobs
• Deploy jobs
• Job notifications
• Source freshness

Load data into your Microsoft Fabric warehouse

1. Log in to your Microsoft Fabric account.

2. On the home page, select the Synapse Data Warehouse tile.

   Example of the Synapse Data Warehouse tile

3. From Workspaces on the left sidebar, navigate to your organization’s workspace. Or, you can create a new workspace; refer to Create a workspace in the Microsoft docs for more details.

4. Choose your warehouse from the table. Or, you can create a new warehouse; refer to Create a warehouse in the Microsoft docs for more details.

5. Open the SQL editor by selecting New SQL query from the top bar.

6. Copy these statements into the SQL editor to load the Jaffle Shop example data:

   DROP TABLE dbo.customers;
   
   CREATE TABLE dbo.customers
   (
       [ID] [int],
       [FIRST_NAME] [varchar](8000),
       [LAST_NAME] [varchar](8000)
   );
   
   COPY INTO [dbo].[customers]
   FROM 'https://dbtlabsynapsedatalake.blob.core.windows.net/dbt-quickstart-public/jaffle_shop_customers.parquet'
   WITH (
       FILE_TYPE = 'PARQUET'
   );
   
   DROP TABLE dbo.orders;
   
   CREATE TABLE dbo.orders
   (
       [ID] [int],
       [USER_ID] [int],
       -- [ORDER_DATE] [int],
       [ORDER_DATE] [date],
       [STATUS] [varchar](8000)
   );
   
   COPY INTO [dbo].[orders]
   FROM 'https://dbtlabsynapsedatalake.blob.core.windows.net/dbt-quickstart-public/jaffle_shop_orders.parquet'
   WITH (
       FILE_TYPE = 'PARQUET'
   );
   
   DROP TABLE dbo.payments;
   
   CREATE TABLE dbo.payments
   (
       [ID] [int],
       [ORDERID] [int],
       [PAYMENTMETHOD] [varchar](8000),
       [STATUS] [varchar](8000),
       [AMOUNT] [int],
       [CREATED] [date]
   );
   
   COPY INTO [dbo].[payments]
   FROM 'https://dbtlabsynapsedatalake.blob.core.windows.net/dbt-quickstart-public/stripe_payments.parquet'
   WITH (
       FILE_TYPE = 'PARQUET'
   );
   Example of loading data

Connect dbt to Microsoft Fabric

1. Create a new project in dbt. Navigate to Account settings (by clicking on your account name in the left side menu), and click + New Project.
2. Enter a project name and click Continue.
3. Choose Fabric as your connection and click Next.
4. In the Configure your environment section, enter the Settings for your new project:
   • Server — Use the service principal's host value for the Fabric test endpoint.
   • Port — 1433 (which is the default).
   • Database — Use the service principal's database value for the Fabric test endpoint.
5. Enter the Development credentials for your new project:
   • Authentication — Choose Service Principal from the dropdown.
   • Tenant ID — Use the service principal’s Directory (tenant) id as the value.
   • Client ID — Use the service principal’s application (client) ID id as the value.
   • Client secret — Use the service principal’s client secret (not the client secret id) as the value.
6. Click Test connection. This verifies that dbt can access your Microsoft Fabric account.
7. Click Next when the test succeeds. If it failed, you might need to check your Microsoft service principal. Ensure that the principal has CONNECT priveleges to the database in the warehouse.

Set up a dbt managed repository

When you develop in dbt, you can leverage Git to version control your code.

To connect to a repository, you can either set up a dbt-hosted managed repository or directly connect to a supported git provider. Managed repositories are a great way to trial dbt without needing to create a new repository. In the long run, it's better to connect to a supported git provider to use features like automation and continuous integration.

To set up a managed repository:

1. Under "Setup a repository", select Managed.
2. Type a name for your repo such as bbaggins-dbt-quickstart
3. Click Create. It will take a few seconds for your repository to be created and imported.
4. Once you see the "Successfully imported repository," click Continue.

Initialize your dbt project​ and start developing

Now that you have a repository configured, you can initialize your project and start development in dbt:

1. Click Start developing in the Studio IDE. It might take a few minutes for your project to spin up for the first time as it establishes your git connection, clones your repo, and tests the connection to the warehouse.
2. Above the file tree to the left, click Initialize dbt project. This builds out your folder structure with example models.
3. Make your initial commit by clicking Commit and sync. Use the commit message initial commit and click Commit. This creates the first commit to your managed repo and allows you to open a branch where you can add new dbt code.
4. You can now directly query data from your warehouse and execute dbt run. You can try this out now:
   • In the command line bar at the bottom, enter dbt run and click Enter. You should see a dbt run succeeded message.

Build your first model

You have two options for working with files in the Studio IDE:

• Create a new branch (recommended) — Create a new branch to edit and commit your changes. Navigate to Version Control on the left sidebar and click Create branch.
• Edit in the protected primary branch — If you prefer to edit, format, or lint files and execute dbt commands directly in your primary git branch. The Studio IDE prevents commits to the protected branch, so you will be prompted to commit your changes to a new branch.

Name the new branch add-customers-model.

1. Click the ... next to the models directory, then select Create file.

2. Name the file dim_customers.sql, then click Create.

3. Copy the following query into the file and click Save.

   dim_customers.sql

   with customers as (
   
   select
       ID as customer_id,
       FIRST_NAME as first_name,
       LAST_NAME as last_name
   
   from dbo.customers
   ),
   
   orders as (
   
       select
           ID as order_id,
           USER_ID as customer_id,
           ORDER_DATE as order_date,
           STATUS as status
   
       from dbo.orders
   ),
   
   customer_orders as (
   
       select
           customer_id,
   
           min(order_date) as first_order_date,
           max(order_date) as most_recent_order_date,
           count(order_id) as number_of_orders
   
       from orders
   
       group by customer_id
   ),
   
   final as (
   
       select
           customers.customer_id,
           customers.first_name,
           customers.last_name,
           customer_orders.first_order_date,
           customer_orders.most_recent_order_date,
           coalesce(customer_orders.number_of_orders, 0) as number_of_orders
   
       from customers
   
       left join customer_orders on customers.customer_id = customer_orders.customer_id
   )
   
   select * from final

4. Enter dbt run in the command prompt at the bottom of the screen. You should get a successful run and see the three models.

Later, you can connect your business intelligence (BI) tools to these views and tables so they only read cleaned up data rather than raw data in your BI tool.

FAQs

How can I see the SQL that dbt is running?

To check out the SQL that dbt is running, you can look in:

• dbt:
  • Within the run output, click on a model name, and then select "Details"
• dbt Core:
  • The target/compiled/ directory for compiled select statements
  • The target/run/ directory for compiled create statements
  • The logs/dbt.log file for verbose logging.

How did dbt choose which schema to build my models in?

By default, dbt builds models in your target schema. To change your target schema:

• If you're developing in dbt, these are set for each user when you first use a development environment.
• If you're developing with dbt Core, this is the schema: parameter in your profiles.yml file.

If you wish to split your models across multiple schemas, check out the docs on using custom schemas.

Note: on BigQuery, dataset is used interchangeably with schema.

Do I need to create my target schema before running dbt?

Nope! dbt will check if the schema exists when it runs. If the schema does not exist, dbt will create it for you.

If I rerun dbt, will there be any downtime as models are rebuilt?

Nope! The SQL that dbt generates behind the scenes ensures that any relations are replaced atomically (i.e. your business users won't experience any downtime).

The implementation of this varies on each warehouse, check out the logs to see the SQL dbt is executing.

What happens if the SQL in my query is bad or I get a database error?

If there's a mistake in your SQL, dbt will return the error that your database returns.

$ dbt run --select customers
Running with dbt=1.9.0
Found 3 models, 9 tests, 0 snapshots, 0 analyses, 133 macros, 0 operations, 0 seed files, 0 sources

14:04:12 | Concurrency: 1 threads (target='dev')
14:04:12 |
14:04:12 | 1 of 1 START view model dbt_alice.customers.......................... [RUN]
14:04:13 | 1 of 1 ERROR creating view model dbt_alice.customers................. [ERROR in 0.81s]
14:04:13 |
14:04:13 | Finished running 1 view model in 1.68s.

Completed with 1 error and 0 warnings:

Database Error in model customers (models/customers.sql)
  Syntax error: Expected ")" but got identifier `your-info-12345` at [13:15]
  compiled SQL at target/run/jaffle_shop/customers.sql

Done. PASS=0 WARN=0 ERROR=1 SKIP=0 TOTAL=1

Any models downstream of this model will also be skipped. Use the error message and the compiled SQL to debug any errors.

Change the way your model is materialized

One of the most powerful features of dbt is that you can change the way a model is materialized in your warehouse, simply by changing a configuration value. You can change things between tables and views by changing a keyword rather than writing the data definition language (DDL) to do this behind the scenes.

By default, everything gets created as a view. You can override that at the directory level so everything in that directory will materialize to a different materialization.

1. Edit your dbt_project.yml file.

   • Update your project name to:

     dbt_project.yml

     name: 'jaffle_shop'

   • Configure jaffle_shop so everything in it will be materialized as a table; and configure example so everything in it will be materialized as a view. Update your models config block to:

     dbt_project.yml

     models:
       jaffle_shop:
         +materialized: table
         example:
           +materialized: view

   • Click Save.

2. Enter the dbt run command. Your customers model should now be built as a table!

   info

   To do this, dbt had to first run a drop view statement (or API call on BigQuery), then a create table as statement.

3. Edit models/customers.sql to override the dbt_project.yml for the customers model only by adding the following snippet to the top, and click Save:

   models/customers.sql

   {{
     config(
       materialized='view'
     )
   }}
   
   with customers as (
   
       select
           id as customer_id
           ...
   
   )
   

4. Enter the dbt run command. Your model, customers, should now build as a view.

   • BigQuery users need to run dbt run --full-refresh instead of dbt run to full apply materialization changes.

5. Enter the dbt run --full-refresh command for this to take effect in your warehouse.

FAQs

What materializations are available in dbt?

dbt ships with five materializations: view, table, incremental, ephemeral and materialized_view. Check out the documentation on materializations for more information on each of these options.

You can also create your own custom materializations, if required however this is an advanced feature of dbt.

Which materialization should I use for my model?

Start out with views, and then change models to tables when required for performance reasons (i.e. downstream queries have slowed).

Check out the docs on materializations for advice on when to use each materialization.

What model configurations exist?

You can also configure:

• tags to support easy categorization and graph selection
• custom schemas to split your models across multiple schemas
• aliases if your view/table name should differ from the filename
• Snippets of SQL to run at the start or end of a model, known as hooks
• Warehouse-specific configurations for performance (e.g. sort and dist keys on Redshift, partitions on BigQuery)

Check out the docs on model configurations to learn more.

Delete the example models

You can now delete the files that dbt created when you initialized the project:

1. Delete the models/example/ directory.

2. Delete the example: key from your dbt_project.yml file, and any configurations that are listed under it.

   dbt_project.yml

   # before
   models:
     jaffle_shop:
       +materialized: table
       example:
         +materialized: view
   dbt_project.yml

   # after
   models:
     jaffle_shop:
       +materialized: table

3. Save your changes.

FAQs

How do I remove deleted models from my data warehouse?

If you delete a model from your dbt project, dbt does not automatically drop the relation from your schema. This means that you can end up with extra objects in schemas that dbt creates, which can be confusing to other users.

(This can also happen when you switch a model from being a view or table, to ephemeral)

When you remove models from your dbt project, you should manually drop the related relations from your schema.

I got an "unused model configurations" error message, what does this mean?

You might have forgotten to nest your configurations under your project name, or you might be trying to apply configurations to a directory that doesn't exist.

Check out this article to understand more.

Build models on top of other models

As a best practice in SQL, you should separate logic that cleans up your data from logic that transforms your data. You have already started doing this in the existing query by using common table expressions (CTEs).

Now you can experiment by separating the logic out into separate models and using the ref function to build models on top of other models:

The DAG we want for our dbt project

1. Create a new SQL file, models/stg_customers.sql, with the SQL from the customers CTE in our original query.

2. Create a second new SQL file, models/stg_orders.sql, with the SQL from the orders CTE in our original query.

   models/stg_customers.sql

   select
       ID as customer_id,
       FIRST_NAME as first_name,
       LAST_NAME as last_name
   
   from dbo.customers
   models/stg_orders.sql

   select
       ID as order_id,
       USER_ID as customer_id,
       ORDER_DATE as order_date,
       STATUS as status
   
   from dbo.orders

3. Edit the SQL in your models/customers.sql file as follows:

   models/customers.sql

   with customers as (
   
       select * from {{ ref('stg_customers') }}
   
   ),
   
   orders as (
   
       select * from {{ ref('stg_orders') }}
   
   ),
   
   customer_orders as (
   
       select
           customer_id,
   
           min(order_date) as first_order_date,
           max(order_date) as most_recent_order_date,
           count(order_id) as number_of_orders
   
       from orders
   
       group by customer_id
   
   ),
   
   final as (
   
       select
           customers.customer_id,
           customers.first_name,
           customers.last_name,
           customer_orders.first_order_date,
           customer_orders.most_recent_order_date,
           coalesce(customer_orders.number_of_orders, 0) as number_of_orders
   
       from customers
   
       left join customer_orders on customers.customer_id = customer_orders.customer_id
   
   )
   
   select * from final
   

4. Execute dbt run.

   This time, when you performed a dbt run, separate views/tables were created for stg_customers, stg_orders and customers. dbt inferred the order to run these models. Because customers depends on stg_customers and stg_orders, dbt builds customers last. You do not need to explicitly define these dependencies.

FAQs

How do I run one model at a time?

To run one model, use the --select flag (or -s flag), followed by the name of the model:

$ dbt run --select customers

Check out the model selection syntax documentation for more operators and examples.

Do ref-able resource names need to be unique?

Within one project: yes! To build dependencies between resources (such as models, seeds, and snapshots), you need to use the ref function, and pass in the resource name as an argument. dbt uses that resource name to uniquely resolve the ref to a specific resource. As a result, these resource names need to be unique, even if they are in distinct folders.

A resource in one project can have the same name as a resource in another project (installed as a dependency). dbt uses the project name to uniquely identify each resource. We call this "namespacing." If you ref a resource with a duplicated name, it will resolve to the resource within the same namespace (package or project), or raise an error because of an ambiguous reference. Use two-argument ref to disambiguate references by specifying the namespace.

Those resource will still need to land in distinct locations in the data warehouse. Read the docs on custom aliases and custom schemas for details on how to achieve this.

As I create more models, how should I keep my project organized? What should I name my models?

There's no one best way to structure a project! Every organization is unique.

If you're just getting started, check out how we (dbt Labs) structure our dbt projects.

Add tests to your models

Adding data tests to a project helps validate that your models are working correctly.

To add data tests to your project:

1. Create a new YAML file in the models directory, named models/schema.yml

2. Add the following contents to the file:

   models/schema.yml

   version: 2
   
   models:
     - name: customers
       columns:
         - name: customer_id
           data_tests:
             - unique
             - not_null
   
     - name: stg_customers
       columns:
         - name: customer_id
           data_tests:
             - unique
             - not_null
   
     - name: stg_orders
       columns:
         - name: order_id
           data_tests:
             - unique
             - not_null
         - name: status
           data_tests:
             - accepted_values:
                 arguments: # available in v1.10.5 and higher. Older versions can set the <argument_name> as the top-level property.
                   values: ['placed', 'shipped', 'completed', 'return_pending', 'returned']
         - name: customer_id
           data_tests:
             - not_null
             - relationships:
                 arguments:
                   to: ref('stg_customers')
                   field: customer_id
   

3. Run dbt test, and confirm that all your tests passed.

When you run dbt test, dbt iterates through your YAML files, and constructs a query for each test. Each query will return the number of records that fail the test. If this number is 0, then the test is successful.

FAQs

What tests are available for me to use in dbt? Can I add my own custom tests?

Out of the box, dbt ships with the following data tests:

• unique
• not_null
• accepted_values
• relationships (i.e. referential integrity)

You can also write your own custom schema data tests.

Some additional custom schema tests have been open-sourced in the dbt-utils package, check out the docs on packages to learn how to make these tests available in your project.

Note that although you can't document data tests as of yet, we recommend checking out this dbt Core discussion where the dbt community shares ideas.

How do I test one model at a time?

Running tests on one model looks very similar to running a model: use the --select flag (or -s flag), followed by the name of the model:

dbt test --select customers

Check out the model selection syntax documentation for full syntax, and test selection examples in particular.

One of my tests failed, how can I debug it?

To debug a failing test, find the SQL that dbt ran by:

• dbt:

  • Within the test output, click on the failed test, and then select "Details".

• dbt Core:

  • Open the file path returned as part of the error message.
  • Navigate to the target/compiled/schema_tests directory for all compiled test queries.

Copy the SQL into a query editor (in dbt, you can paste it into a new Statement), and run the query to find the records that failed.

Does my test file need to be named `schema.yml`?

No! You can name this file whatever you want (including whatever_you_want.yml), so long as:

• The file is in your models/ directory¹
• The file has .yml extension

Check out the docs for more information.

¹If you're declaring properties for seeds, snapshots, or macros, you can also place this file in the related directory — seeds/, snapshots/ and macros/ respectively.

Why do model and source YAML files always start with `version: 2`?

Once upon a time, the structure of these .yml files was very different (s/o to anyone who was using dbt back then!). Adding version: 2 allowed us to make this structure more extensible.

From dbt Core v1.5, the top-level version: key is optional in all resource YAML files. If present, only version: 2 is supported.

Also starting in v1.5, both the config-version: 2 and the top-level version: key in the dbt_project.yml are optional.

Resource YAML files do not currently require this config. We only support version: 2 if it's specified. Although we do not expect to update YAML files to version: 3 soon, having this config will make it easier for us to introduce new structures in the future

What data tests should I add to my project?

We recommend that every model has a data test on a primary key, that is, a column that is unique and not_null.

We also recommend that you test any assumptions on your source data. For example, if you believe that your payments can only be one of three payment methods, you should test that assumption regularly — a new payment method may introduce logic errors in your SQL.

In advanced dbt projects, we recommend using sources and running these source data-integrity tests against the sources rather than models.

When should I run my data tests?

You should run your data tests whenever you are writing new code (to ensure you haven't broken any existing models by changing SQL), and whenever you run your transformations in production (to ensure that your assumptions about your source data are still valid).

Document your models

Adding documentation to your project allows you to describe your models in rich detail, and share that information with your team. Here, we're going to add some basic documentation to our project.

1. Update your models/schema.yml file to include some descriptions, such as those below.

   models/schema.yml

   version: 2
   
   models:
     - name: customers
       description: One record per customer
       columns:
         - name: customer_id
           description: Primary key
           data_tests:
             - unique
             - not_null
         - name: first_order_date
           description: NULL when a customer has not yet placed an order.
   
     - name: stg_customers
       description: This model cleans up customer data
       columns:
         - name: customer_id
           description: Primary key
           data_tests:
             - unique
             - not_null
   
     - name: stg_orders
       description: This model cleans up order data
       columns:
         - name: order_id
           description: Primary key
           data_tests:
             - unique
             - not_null
         - name: status
           data_tests:
             - accepted_values:
                 arguments: # available in v1.10.5 and higher. Older versions can set the <argument_name> as the top-level property.
                   values: ['placed', 'shipped', 'completed', 'return_pending', 'returned']
         - name: customer_id
           data_tests:
             - not_null
             - relationships:
                 arguments:
                   to: ref('stg_customers')
                   field: customer_id

2. Run dbt docs generate to generate the documentation for your project. dbt introspects your project and your warehouse to generate a JSON file with rich documentation about your project.

3. Click the book icon in the Develop interface to launch documentation in a new tab.

FAQs

How do I write long-form explanations in my descriptions?

If you need more than a sentence to explain a model, you can:

1. Split your description over multiple lines using >. Interior line breaks are removed and Markdown can be used. This method is recommended for simple, single-paragraph descriptions:

  version: 2

  models:
  - name: customers
    description: >
      Lorem ipsum **dolor** sit amet, consectetur adipisicing elit, sed do eiusmod
      tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
      quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
      consequat.

2. Split your description over multiple lines using |. Interior line breaks are maintained and Markdown can be used. This method is recommended for more complex descriptions:

  version: 2

  models:
  - name: customers
    description: |
      ### Lorem ipsum

      * dolor sit amet, consectetur adipisicing elit, sed do eiusmod
      * tempor incididunt ut labore et dolore magna aliqua.

3. Use a docs block to write the description in a separate Markdown file.

How do I access documentation in dbt Catalog?

If you're using dbt to deploy your project and have a Starter, Enterprise, or Enterprise+ plan, you can use Catalog to view your project's resources (such as models, tests, and metrics) and their lineage to gain a better understanding of its latest production state.

Access Catalog in dbt by clicking the Explore link in the navigation. You can have up to 5 read-only users access the documentation for your project.

dbt developer plan and dbt Core users can use dbt Docs, which generates basic documentation but it doesn't offer the same speed, metadata, or visibility as Catalog.

Commit your changes

Now that you've built your customer model, you need to commit the changes you made to the project so that the repository has your latest code.

If you edited directly in the protected primary branch:

1. Click the Commit and sync git button. This action prepares your changes for commit.
2. A modal titled Commit to a new branch will appear.
3. In the modal window, name your new branch add-customers-model. This branches off from your primary branch with your new changes.
4. Add a commit message, such as "Add customers model, tests, docs" and and commit your changes.
5. Click Merge this branch to main to add these changes to the main branch on your repo.

If you created a new branch before editing:

1. Since you already branched out of the primary protected branch, go to Version Control on the left.
2. Click Commit and sync to add a message.
3. Add a commit message, such as "Add customers model, tests, docs."
4. Click Merge this branch to main to add these changes to the main branch on your repo.

Deploy dbt

Use dbt's Scheduler to deploy your production jobs confidently and build observability into your processes. You'll learn to create a deployment environment and run a job in the following steps.

Create a deployment environment

1. From the main menu, go to Orchestration > Environments.
2. Click Create environment.
3. In the Name field, write the name of your deployment environment. For example, "Production."
4. In the dbt Version field, select the latest version from the dropdown.
5. Under Deployment connection, enter the name of the dataset you want to use as the target, such as "Analytics". This will allow dbt to build and work with that dataset. For some data warehouses, the target dataset may be referred to as a "schema".
6. Click Save.

Create and run a job

Jobs are a set of dbt commands that you want to run on a schedule. For example, dbt build.

As the jaffle_shop business gains more customers, and those customers create more orders, you will see more records added to your source data. Because you materialized the customers model as a table, you'll need to periodically rebuild your table to ensure that the data stays up-to-date. This update will happen when you run a job.

1. After creating your deployment environment, you should be directed to the page for a new environment. If not, select Orchestration from the main menu, then click Jobs.
2. Click Create job > Deploy job.
3. Provide a job name (for example, "Production run") and select the environment you just created.
4. Scroll down to the Execution settings section.
5. Under Commands, add this command as part of your job if you don't see it:
   • dbt build
6. Select the Generate docs on run option to automatically generate updated project docs each time your job runs.
7. For this exercise, do not set a schedule for your project to run — while your organization's project should run regularly, there's no need to run this example project on a schedule. Scheduling a job is sometimes referred to as deploying a project.
8. Click Save, then click Run now to run your job.
9. Click the run and watch its progress under Run summary.
10. Once the run is complete, click View Documentation to see the docs for your project.

Congratulations 🎉! You've just deployed your first dbt project!

FAQs

What happens if one of my runs fails?

If you're using dbt, we recommend setting up email and Slack notifications (Account Settings > Notifications) for any failed runs. Then, debug these runs the same way you would debug any runs in development.

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