<@ULVA73B9P> how can use DBT to load data into mys...
# ask-marvin
c
@Marvin how can use DBT to load data into mysql in prefect
m
thought for 75.9 seconds
Yes — the usual pattern is: 1. Use dbt with a MySQL adapter to define your models 2. Use Prefect to orchestrate the dbt commands like
dbt deps
,
dbt run
,
dbt test
, or
dbt build
In Prefect 3.x, the easiest way is with
prefect-dbt
. Install:
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bash
pip install "prefect[dbt]"
pip install dbt-mysql
Then create a flow that runs your dbt project:
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python
from pathlib import Path
from prefect import flow
from prefect_dbt import PrefectDbtRunner, PrefectDbtSettings


@flow
def load_into_mysql():
    settings = PrefectDbtSettings(
        project_dir=Path("./my_dbt_project"),
        profiles_dir=Path("./my_dbt_project"),
    )

    runner = PrefectDbtRunner(
        settings=settings,
        raise_on_failure=True,
    )

    runner.invoke(["deps"])
    runner.invoke(["seed"])
    runner.invoke(["run"])
    runner.invoke(["test"])


if __name__ == "__main__":
    load_into_mysql()
Your
profiles.yml
would contain the MySQL connection for dbt, for example:
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yaml
my_dbt_project:
  outputs:
    dev:
      type: mysql
      host: "{{ env_var('DBT_MYSQL_HOST') }}"
      user: "{{ env_var('DBT_MYSQL_USER') }}"
      pass: "{{ env_var('DBT_MYSQL_PASSWORD') }}"
      port: 3306
      dbname: analytics
      threads: 4
      keepalives_idle: 0
  target: dev
A practical setup is: - keep your dbt project in git - store MySQL credentials in environment variables or Prefect-managed secrets - let Prefect schedule and monitor the dbt run If you want a scheduled deployment, you can serve it directly:
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python
if __name__ == "__main__":
    load_into_mysql.serve(
        name="dbt-mysql-daily",
        cron="0 2 * * *",
    )
A few caveats: - Prefect orchestrates dbt, but dbt itself needs MySQL support via
dbt-mysql
- MySQL dbt support is generally less common than Snowflake/BigQuery/Postgres, so test your models carefully - Some dbt features/adapters are more mature on warehouse platforms than on MySQL Helpful links: - Prefect dbt integration docs - prefect-dbt integration page - dbt MySQL setup If you want, I can also give you: - a full working example with
profiles.yml
+ Prefect flow - a Docker/Kubernetes deployment example - or show how to run specific dbt models/tags from Prefect.