1. REFERENCE
    13 min read

    So you want Database Versioning?

    Tim Sehn |

    Here at DoltHub, we've had a lot of success with our "So you want..." series of blog posts helping people find Dolt when they are looking for it. Dolt is a lot of things. Dolt is a version controlled database, a Git database, Git for data, data…

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  1. VIDEO
    1 min read

    Get Started with Hosted Dolt

    Hosted Dolt If you missed the news, Hosted Dolt is here! We'll provision CPU, memory, and disk in a cloud and region of your choice and run a Dolt database for you. We'll handle monitoring and logging. In the future, we'll handle backup…

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  2. 7 min read

    Dolt's New Storage Engine

    In the beginning, there was Noms. The creation of Aaron Boodman and Attic Labs, Noms introduced Prolly Trees, a novel search index structure that supports diff, merge and sync operations. Noms development has since been halted, but its contributions…

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  3. FEATURE RELEASE
    7 min read

    Announcing Hosted Dolt

    Hosted Dolt is here! We'll provision CPU, memory, and disk in a cloud and region of your choice and run a Dolt database for you. We'll handle monitoring and logging. In the future, we'll handle backup, replication, upgrades, and a host of other…

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  4. SQL
    12 min read

    Dolt Diff Magic: Part 3 – Diffing tables at two revisions

    Welcome back to the third post in this series exploring the tricks you can do with Dolt's magical versioning features! 🪄 In the first post of this series, we explored how the dolt_diff system table enables you to see what tables have changed, when they changed, and who changed them. In the second post of this series, we explored the dolt_diff_$tablename…

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  5. VIDEO
    1 min read

    Dolt: The Database for Dummies

    Dolt is the database for dummies Our CEO, Tim Sehn, recently wrote a blog about why Dolt is the database for dummies. In this video, we show off the features that make working with a Dolt database foolproof. You get copy/paste, undo, and track…

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  6. 6 min read

    This Tech Blog is an Ad

    This is an ad. It was written by an employee of the company that owns this domain, and is an attempt to sell you a product. You clicked on it out of curiosity because the title was interesting and promised technical content that is relevant to you…

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  7. 6 min read

    Dolt: The Database for Dummies

    Why name a product Dolt? We get asked all the time. It's named dolt to pay homage to how Linus Torvalds named git: Torvalds sarcastically quipped about the name git (which means "unpleasant person" in British English slang): "I'm an egotistical bastard, and I name all my projects after myself. First 'Linux', now 'git'."…

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  8. 8 min read

    Monitoring a DoltLab instance with Prometheus

    Hello DoltLabbers! Today's blog will be a quick-start guide, showing you how to monitor your DoltLab instance with Prometheus. We recently released DoltLab v0.4.2 that adds support for DoltLab users requiring implicit TLS connections to their SMTP servers. It also includes some helpful debugging tools for troubleshooting SMTP…

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  9. BOUNTY
    13 min read

    Why nonprofit hospitals can be so damn expensive

    One of the most expensive hospitals in America may actually be a nonprofit. Insurers pay the hospital, Mary Lanning Healthcare in Nebraska, an average of $200,000 for a particular neurosurgery. However, drive less than hour West to Kearney Regional…

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  10. WEB
    12 min read

    Migrating a React app to the new Google Sign-In library

    Google announced last year that they will be discontinuing their Google Sign-In Javascript Platform Library for the web. It will be replaced with Google Identity Services, their new family of Identity APIs that consolidate multiple identity offerings…

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  11. 13 min read

    How to get more than 2TB of Disk on AWS EC2 Ubuntu 20.04

    Today's blog is a quick how-to guide aimed at helping others provision and actually use more than 2TBs of disk on an AWS EC2 Ubuntu 20.04. I never planned on writing this blog, but experiencing the surprisingly clunky and cryptic process compelled me…

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  12. VIDEO
    1 min read

    Using dolt revert to recover from operational errors

    Introduction Dolt is git for data, the world's only SQL database that you can branch and merge, clone and fork, push and pull just like a git repository. It's like Git and MySQL had a baby. Being natively version controlled means Dolt can do things…

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  13. SQL
    4 min read

    SELECT Isn't Sensible

    In my last blog post, I went over how we initially implemented foreign keys on our database—Dolt, which fuses a fully MySQL-compatible database with Git-style versioning capabilities—and how our first decision resulted in a complete rewrite of…

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  14. REFERENCE
    7 min read

    So you want Data Version Control?

    There is one name in the data version control space I'm truly jealous of: DVC, short for "Data Version Control". Data version control is only a small part of what DVC does. DVC is a tool to version code and data in machine learning pipelines. There are other tools that version control data. However, Google doesn't seem to think so. We have new technology to do true version control (ie. logs, diffs, and merges) on large scale data. This…

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  15. TECHNICAL
    6 min read

    Mitigating the variability of third party services like S3

    Everyone has that favorite route that they use to drive to work. You’ve driven the route over and over and learn to trust and rely on it over time. You know exactly how long your drive is going to take and when you need to leave the house. So you…

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  16. BOUNTY
    3 min read

    US Hospital Price Transparency Bounty Retrospective

    US Hospital Price Transparency Bounty Retrospective A year ago we launched DoltHub data bounties. If you're unfamiliar, we use Dolt to create open databases that don't exist anywhere else on the internet. We use Dolt's data lineage capability to…

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  17. SQLFEATURE RELEASE
    5 min read

    Dolt Supports Cached Prepared Statements

    Last year we announced prepared statement support, a simple form of query parameterization. True prepared statements save plans to be executed later, often multiple times. But the original work only progressed as far as satisfying the handler API…

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  18. BOUNTY
    4 min read

    $10,000 Jails and Prisons Data Bounty

    What are data bounties? DoltHub data bounties are our way of getting people to use Dolt: in each bounty, we build meaningful datasets together using Git-style pull requests. If you haven't participated in a bounty already, why not start now? We pay…

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  19. SQL
    5 min read

    The Foreign Key Eviction

    When building a database, there are many decisions to be made regarding its implementation. Our database is Dolt, which is a SQL database with Git-style versioning. We're modeling our SQL implementation on MySQL, so much so that we're a drop-in…

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  20. USE CASE
    9 min read

    A Really Bad Day at Atlassian

    A couple weeks ago, somebody at Atlassian had a really bad day. Seems like they didn't realize it at the time, but their customers noticed pretty quickly. Can we just talk about Atlassian services being down? 🤔 What happened there? It's not a small hiccup with a few minutes or an hour-long downtime, Confluence and Jira are literally down all day.— Mefi – Gabor Nadai (@gabornadai) Apr 5, 2022 Atlassian makes a bunch of software engineering tools that are used by a huge number of…

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