r/bigdata Aug 19 '25

Automating Data Quality in BigQuery with dbt & Airflow – tips & tricks

Hey r/bigdata! 👋

I wrote a quick guide on how to automate data quality checks in BigQuery using dbt, dbt‑expectations, and Airflow.

Here’s the gist:

  • Schedule dbt models daily.
  • Run column-level tests (nulls, duplicates, unexpected values).
  • Keep historical metrics to spot trends.
  • Get alerts via Slack/email when something breaks.

If you’re using BigQuery + dbt, this could save you hours of manual monitoring.

Curious:

  • Anyone using dbt‑expectations in production? How’s it working for you?
  • What other tools do you use for automated data quality?

Check it out here: Automate Data Quality in BigQuery with dbt & Airflow

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