Querying DuckDB into Polars
The team also has a local DuckDB analytical store. A connection is already open, and a physical_format_summary table is loaded for you. DuckDB has its own integration with Polars: query the table and convert the result to a Polars DataFrame in one step.
polars is loaded as pl, and the DuckDB connection is in db.
This exercise is part of the course
Scaling and Optimizing Data Pipelines with Polars
Exercise instructions
- Run the SQL query on the DuckDB connection.
- Convert the DuckDB result to a Polars DataFrame.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Run the query and convert the result to a Polars DataFrame
result = db.____(
"""
SELECT *
FROM physical_format_summary
ORDER BY total_checkouts DESC
"""
).____()
print(result)