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Topic

DuckDB

embedded_database analytics olap

60

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13 peak/qtr
2020-Q1 2026-Q1

Activities

60 activities · Newest first

When Rivers Speak: Analyzing Massive Water Quality Datasets using USGS API and Remote SSH in Positron

Rivers have long been storytellers of human history. From the Nile to the Yangtze, they have shaped trade, migration, settlement, and the rise of civilizations. They reveal the traces of human ambition... and the costs of it. Today, from the Charles to the Golden Gate, US rivers continue to tell stories, especially through data.

Over the past decades, extensive water quality monitoring efforts have generated vast public datasets: millions of measurements of pH, dissolved oxygen, temperature, and conductivity collected across the country. These records are more than environmental snapshots; they are archives of political priorities, regulatory choices, and ecological disruptions. Ultimately, they are evidence of how societies interact with their environments, often unevenly.

In this talk, I’ll explore how Python and modern data workflows can help us "listen" to these stories at scale. Using the United States Geological Survey (USGS) Water Data APIs and Remote SSH in Positron, I’ll process terabytes of sensor data spanning several years and regions. I’ll demonstrate that, while Parquet and DuckDB enable scalable exploration of historical records, using Remote SSH is paramount in order to enable large-scale data analysis. By doing so, I hope to answer some analytical questions that can surface patterns linked to industrial growth, regulatory shifts, and climate change.

By treating rivers as both ecological systems and social mirrors, we can begin to see how environmental data encodes histories of inequality, resilience, and transformation.

Whether your interest lies in data engineering, environmental analytics, or the human dimensions of climate and infrastructure, this talk will explore topics at the intersection of environmental science, will offer both technical methods and sociological lenses to understand the stories rivers continue to tell.

Extending SQL Databases with Python

What if your database could run Python code inside SQL? In this talk, we’ll explore how to extend popular databases using Python, without needing to write a line of C.

We’ll cover three systems—SQLite, DuckDB, and PostgreSQL—and show how Python can be used in each to build custom SQL functions, accelerate data workflows, and prototype analytical logic. Each database offers a unique integration path: - SQLite and DuckDB allow you to register Python functions directly into SQL via sqlite3.create_function, making it easy to inject business logic or custom transformations. - PostgreSQL offers PL/Python, a full-featured procedural language for writing SQL functions in Python. We’ll also touch on advanced use cases, including embedding the Python interpreter directly into a PostgreSQL extension for deeper integration.

By the end of this talk, you’ll understand the capabilities, limitations, and gotchas of Python-powered extensions in each system—and how to choose the right tool depending on your use case, whether you’re analyzing data, building pipelines, or hacking on your own database.

How to make public data more accessible with "baked" data and DuckDB

Publicly available data is rarely analysis-ready, hampering researchers, organizations, and the public from easily accessing the information these datasets contain. One way to address this shortcoming is to "bake" the data into a structured format and ship it alongside code that can be used for analysis. For analytical work in particular, DuckDB provides a performant way to query the structured data in a variety of contexts.

This talk will explore the benefits and tradeoffs of this architectural pattern using the design of scipeds–an open source Python package for analyzing higher-education data in the US–as a case study.

No DuckDB experience required, beginner Python and programming experience recommended. This talk is aimed at data practitioners, especially those who work with public datasets.

Forget the Cloud: Building Lean Batch Pipelines from TCP Streams with Python and DuckDB

Many industrial and legacy systems still push critical data over TCP streams. Instead of reaching for heavyweight cloud platforms, you can build fast, lean batch pipelines on-prem using Python and DuckDB.

In this talk, you'll learn how to turn raw TCP streams into structured data sets, ready for analysis, all running on-premise. We'll cover key patterns for batch processing, practical architecture examples, and real-world lessons from industrial projects.

If you work with sensor data, logs, or telemetry, and you value simplicity, speed, and control this talk is for you.

Narwhals: enabling universal dataframe support

Ever tried passing a Polars Dataframe to a data science library and found that it...just works? No errors, no panics, no noticeable overhead, just...results? This is becoming increasingly common in 2025, yet only 2 years ago, it was mostly unheard of. So, what changed? A large part of the answer is: Narwhals.

Narwhals is a lightweight compatibility layer between dataframe libraries which lets your code work seamlessly across Polars, pandas, PySpark, DuckDB, and more! And it's not just a theoretical possibility: with ~30 million monthly downloads and set as a required dependency of Altair, Bokeh, Marimo, Plotly, Shiny, and more, it's clear that it's reshaping the data science landscape. By the end of the talk, you'll understand why writing generic dataframe code was such a headache (and why it isn't anymore), how Narwhals works and how its community operates, and how you can use it in your projects today. The talk will be technical yet accessible and light-hearted.

More than DataFrames: Data Pipelines with the Swiss Army Knife DuckDB

Most Python developers reach for Pandas or Polars when working with tabular data—but DuckDB offers a powerful alternative that’s more than just another DataFrame library. In this tutorial, you’ll learn how to use DuckDB as an in-process analytical database: building data pipelines, caching datasets, and running complex queries with SQL—all without leaving Python. We’ll cover common use cases like ETL, lightweight data orchestration, and interactive analytics workflows. You’ll leave with a solid mental model for using DuckDB effectively as the “SQLite for analytics.”

Extending the Lakehouse: Power Interoperable Compute With Unity Catalog Open APIs

The lakehouse is built for storage flexibility, but what about compute? In this session, we’ll explore how Unity Catalog enables you to connect and govern multiple compute engines across your data ecosystem. With open APIs and support for the Iceberg REST Catalog, UC lets you extend access to engines like Trino, DuckDB, and Flink while maintaining centralized security, lineage, and interoperability. We will show how you can get started today working with engines like Apache Spark and Starburst to read and write to UC managed tables with some exciting demos. Learn how to bring flexibility to your compute layer—without compromising control.

Delta Kernel for Rust and Java

Delta Kernel makes it easy for engines and connectors to read and write Delta tables. It supports many Delta features and robust connectors, including DuckDB, Clickhouse, Spice AI and delta-dotnet. In this session, we'll cover lessons learned about how to build a high-performance library that lets engines integrate the way they want, while not having to worry about the details of the Delta protocol. We'll talk through how we streamlined the API as well as its changes and underlying motivations. We'll discuss some new highlight features like write support, and the ability to do CDF scans. Finally we'll cover the future roadmap for the Kernel project and what you can expect from the project over the coming year.

Delta Lake and the Data Mesh

Delta Lake has proven to be an excellent storage format. Coupled with the Databricks platform, the storage format has shined as a component of a distributed system on the lakehouse. The pairing of Delta and Spark provides an excellent platform, but users often struggle to perform comparable work outside of the Spark ecosystem. Tools such as delta-rs, Polars and DuckDb have brought access to users outside of Spark, but they are only building blocks of a larger system. In this 40-minute talk we will demonstrate how users can use data products on the Nextdata OS data mesh to interact with the Databricks platform to drive Delta Lake workflows. Additionally, we will show how users can build autonomous data products that interact with their Delta tables both inside and outside of the lakehouse platform. Attendees will learn how to integrate the Nextdata OS data mesh with the Databricks platform as both an external and integral component.

Polars, DuckDB, PySpark, PyArrow, pandas, cuDF: how Narwhals has brought them all together!

Suppose you want to write a data science tool to do feature engineering. Your experience may go like this: - Expectation: you can focus on state-of-the art techniques for feature engineering. - Reality: you keep having to make you codebase more complex because a new dataframe library has come out and users are demanding support for it.

Or rather, it might have gone like that in the pre-Narwhals era. Because now, you can focus on solving the problems which your tool set out to do, and let Narwhals handle the subtle differences between different kinds of dataframe inputs!

Build Bigger With Small Ai: Running Small Models Locally

It's finally possible to bring the awesome power of Large Language Models (LLMs) to your laptop. This talk will explore how to run and leverage small, openly available LLMs to power common tasks involving data, including selecting the right models, practical use cases for running small models, and best practices for deploying small models effectively alongside databases.

Bio: Jeffrey Morgan is the founder of Ollama, an open-source tool to get up and run large language models. Prior to founding Ollama, Jeffrey founded Kitematic, which was acquired by Docker and evolved into Docker Desktop. He has previously worked at companies including Docker, Twitter, and Google.

➡️ Follow Us LinkedIn: https://www.linkedin.com/company/small-data-sf/ X/Twitter : https://twitter.com/smalldatasf Website: https://www.smalldatasf.com/

Discover how to run large language models (LLMs) locally using Ollama, the easiest way to get started with small AI models on your Mac, Windows, or Linux machine. Unlike massive cloud-based systems, small open source models are only a few gigabytes, allowing them to run incredibly fast on consumer hardware without network latency. This video explains why these local LLMs are not just scaled-down versions of larger models but powerful tools for developers, offering significant advantages in speed, data privacy, and cost-effectiveness by eliminating hidden cloud provider fees and risks.

Learn the most common use case for small models: combining them with your existing factual data to prevent hallucinations. We dive into retrieval augmented generation (RAG), a powerful technique where you augment a model's prompt with information from a local data source. See a practical demo of how to build a vector store from simple text files and connect it to a model like Gemma 2B, enabling you to query your own data using natural language for fast, accurate, and context-aware responses.

Explore the next frontier of local AI with small agents and tool calling, a new feature that empowers models to interact with external tools. This guide demonstrates how an LLM can autonomously decide to query a DuckDB database, write the correct SQL, and use the retrieved data to answer your questions. This advanced tutorial shows you how to connect small models directly to your data engineering workflows, moving beyond simple chat to create intelligent, data-driven applications.

Get started with practical applications for small models today, from building internal help desks to streamlining engineering tasks like code review. This video highlights how small and large models can work together effectively and shows that open source models are rapidly catching up to their cloud-scale counterparts. It's never been a better time for developers and data analysts to harness the power of local AI.

Rui Machado: Data Engineers: Respect the Resiliency of SQL

🌟 Session Overview 🌟

Session Name: Data Engineers: Respect the Resiliency of SQL Speaker: Rui Machado Session Description: In the ever-evolving data landscape, SQL's resilience shines, powering critical systems across all industries. Despite new technologies, SQL's core definition and manipulation language remains indispensable, evolving to meet modern demands. This talk explores why SQL endures, spotlighting its integration in innovative tools like dbt and DuckDB, which leverage SQL interfaces for advanced data processing. It will reveal some of the secrets behind SQL's lasting popularity and its pivotal role in the future of data engineering.

🚀 About Big Data and RPA 2024 🚀

Unlock the future of innovation and automation at Big Data & RPA Conference Europe 2024! 🌟 This unique event brings together the brightest minds in big data, machine learning, AI, and robotic process automation to explore cutting-edge solutions and trends shaping the tech landscape. Perfect for data engineers, analysts, RPA developers, and business leaders, the conference offers dual insights into the power of data-driven strategies and intelligent automation. 🚀 Gain practical knowledge on topics like hyperautomation, AI integration, advanced analytics, and workflow optimization while networking with global experts. Don’t miss this exclusive opportunity to expand your expertise and revolutionize your processes—all from the comfort of your home! 📊🤖✨

📅 Yearly Conferences: Curious about the evolution of QA? Check out our archive of past Big Data & RPA sessions. Watch the strategies and technologies evolve in our videos! 🚀 🔗 Find Other Years' Videos: 2023 Big Data Conference Europe https://www.youtube.com/playlist?list=PLqYhGsQ9iSEpb_oyAsg67PhpbrkCC59_g 2022 Big Data Conference Europe Online https://www.youtube.com/playlist?list=PLqYhGsQ9iSEryAOjmvdiaXTfjCg5j3HhT 2021 Big Data Conference Europe Online https://www.youtube.com/playlist?list=PLqYhGsQ9iSEqHwbQoWEXEJALFLKVDRXiP

💡 Stay Connected & Updated 💡

Don’t miss out on any updates or upcoming event information from Big Data & RPA Conference Europe. Follow us on our social media channels and visit our website to stay in the loop!

🌐 Website: https://bigdataconference.eu/, https://rpaconference.eu/ 👤 Facebook: https://www.facebook.com/bigdataconf, https://www.facebook.com/rpaeurope/ 🐦 Twitter: @BigDataConfEU, @europe_rpa 🔗 LinkedIn: https://www.linkedin.com/company/73234449/admin/dashboard/, https://www.linkedin.com/company/75464753/admin/dashboard/ 🎥 YouTube: http://www.youtube.com/@DATAMINERLT

Think Inside the Box: Constraints Drive Data Warehousing Innovation

As a Head of Data or a one-person data team, keeping the lights on for the business while running all things data-related as efficiently as possible is no small feat. This talk will focus on tactics and strategies to manage within and around constraints, including monetary costs, time and resources, and data volumes.

📓 Resources Big Data is Dead: https://motherduck.com/blog/big-data-... Small Data Manifesto: https://motherduck.com/blog/small-dat... Why Small Data?: https://benn.substack.com/p/is-excel-... Small Data SF: https://www.smalldatasf.com/

➡️ Follow Us LinkedIn: / motherduck
X/Twitter : / motherduck
Blog: https://motherduck.com/blog/


Learn how your data team can drive innovation and maximize ROI by embracing constraints, drawing inspiration from SpaceX's revolutionary cost-effective approach. This video challenges the "abundance mindset" prevalent in the modern data stack, where easily scalable cloud data warehouses and a surplus of tools often lead to unmanageable data models and underutilized dashboards. We explore a focused data strategy for extracting maximum value from small data, shifting the paradigm from "more data" to more impact.

To maximize value, data teams must move beyond being order-takers and practice strategic stakeholder management. Discover how to use frameworks like the stakeholder engagement matrix to prioritize high-impact business leaders and align your work with core business goals. This involves speaking the language of business growth models, not technical jargon about data pipelines or orchestration, ensuring your data engineering efforts resonate with key decision-makers and directly contribute to revenue-generating activities.

Embracing constraints is key to innovation and effective data project management. We introduce the Iron Triangle—a fundamental engineering concept balancing scope, cost, and time—as a powerful tool for planning data projects and having transparent conversations with the business. By treating constraints not as limitations but as opportunities, data engineers and analysts can deliver higher-quality data products without succumbing to scope creep or uncontrolled costs.

A critical component of this strategy is understanding the Total Cost of Ownership (TCO), which goes far beyond initial compute costs to include ongoing maintenance, downtime, and the risk of vendor pricing changes. Learn how modern, efficient tools like DuckDB and MotherDuck are designed for cost containment from the ground up, enabling teams to build scalable, cost-effective data platforms. By making the true cost of data requests visible, you can foster accountability and make smarter architectural choices. Ultimately, this guide provides a blueprint for resisting data stack bloat and turning cost and constraints into your greatest assets for innovation.

Big Data is Dead: Long Live Hot Data 🔥

Over the last decade, Big Data was everywhere. Let's set the record straight on what is and isn't Big Data. We have been consumed by a conversation about data volumes when we should focus more on the immediate task at hand: Simplifying our work.

Some of us may have Big Data, but our quest to derive insights from it is measured in small slices of work that fit on your laptop or in your hand. Easy data is here— let's make the most of it.

📓 Resources Big Data is Dead: https://motherduck.com/blog/big-data-is-dead/ Small Data Manifesto: https://motherduck.com/blog/small-data-manifesto/ Small Data SF: https://www.smalldatasf.com/

➡️ Follow Us LinkedIn: https://linkedin.com/company/motherduck X/Twitter : https://twitter.com/motherduck Blog: https://motherduck.com/blog/


Explore the "Small Data" movement, a counter-narrative to the prevailing big data conference hype. This talk challenges the assumption that data scale is the most important feature of every workload, defining big data as any dataset too large for a single machine. We'll unpack why this distinction is crucial for modern data engineering and analytics, setting the stage for a new perspective on data architecture.

Delve into the history of big data systems, starting with the non-linear hardware costs that plagued early data practitioners. Discover how Google's foundational papers on GFS, MapReduce, and Bigtable led to the creation of Hadoop, fundamentally changing how we scale data processing. We'll break down the "big data tax"—the inherent latency and system complexity overhead required for distributed systems to function, a critical concept for anyone evaluating data platforms.

Learn about the architectural cornerstone of the modern cloud data warehouse: the separation of storage and compute. This design, popularized by systems like Snowflake and Google BigQuery, allows storage to scale almost infinitely while compute resources are provisioned on-demand. Understand how this model paved the way for massive data lakes but also introduced new complexities and cost considerations that are often overlooked.

We examine the cracks appearing in the big data paradigm, especially for OLAP workloads. While systems like Snowflake are still dominant, the rise of powerful alternatives like DuckDB signals a shift. We reveal the hidden costs of big data analytics, exemplified by a petabyte-scale query costing nearly $6,000, and argue that for most use cases, it's too expensive to run computations over massive datasets.

The key to efficient data processing isn't your total data size, but the size of your "hot data" or working set. This talk argues that the revenge of the single node is here, as modern hardware can often handle the actual data queried without the overhead of the big data tax. This is a crucial optimization technique for reducing cost and improving performance in any data warehouse.

Discover the core principles for designing systems in a post-big data world. We'll show that since only 1 in 500 users run true big data queries, prioritizing simplicity over premature scaling is key. For low latency, process data close to the user with tools like DuckDB and SQLite. This local-first approach offers a compelling alternative to cloud-centric models, enabling faster, more cost-effective, and innovative data architectures.

Coalesce 2024: Simplify your dbt data pipelines with serverless DuckDB

Discover how to cut complexity of your dbt data pipelines with serverless DuckDB while improving performance and drastically reducing costs. This session covers practical strategies for cutting complexity and expenses in data flows while enjoying a more ergonomic and frictionless workflow. Learn how adopting a DuckDB-based architecture can streamline your operations, enhance developer experience, and boost efficiency.

Speaker: Alex Monahan Forward Deployed Software Engineer MotherDuck

Read the blog to learn about the latest dbt Cloud features announced at Coalesce, designed to help organizations embrace analytics best practices at scale https://www.getdbt.com/blog/coalesce-2024-product-announcements

The Evolution of Delta Lake from Data + AI Summit 2024

Shant Hovsepian, Chief Technology Officer of Data Warehousing at Databricks explains why Delta Lake is the most adopted open lakehouse format.

Includes: - Delta Lake UniForm GA (support for and compatibility with Hudi, Apache Iceberg, Delta) - Delta Lake Liquid Clustering - Delta Lake production-ready catalog (Iceberg REST API) - The growth and strength of the Delta ecosystem - Delta Kernel - DuckDB integration with Delta - Delta 4.0

Announcing DuckDB Support for Delta Lake and a DuckDB Extension to Unity Catalog - Hannes Mühleisen

Hannes Mühleisen of DuckDB Labs addressed an audience of thousands during his keynote address at Data + AI Summit 2024 in San Francisco. Mühleisen announced DuckDB support for Delta Lake, a new DuckDB Extension to Unity Catalog, and Community Extensions.

Speaker: Hannes Mühleisen, Creator of DuckDB, DuckDB Labs @duckdb @duckdb3282