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. REFERENCE
    6 min read

    Migrating Dolt's Binary Format

    Dolt is a MySQL-compatible version-controlled database. It's the only SQL database with branches that you can diff, merge and sync. Over the past year, the team at DoltHub has been working on a new storage engine for Dolt. Earlier this summer we…

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  2. BOUNTY
    5 min read

    $12,000 US Housing Prices Bounty

    Coming off the heels of our successful museum collections data bounty is a sequel to one of our flagship projects: tracking every single housing sale record in existence. The link to the latest bounty is here. If you've never heard of Dolt, we use a unique technology to build databases in a distributed way. It's the same way codebases are built with Git. We were able to build the world's largest open database of hospital prices…

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  3. 7 min read

    How to expose DoltLab with ngrok

    ngrok is the programmable network edge that makes it easy to publish unreachable ports on the public internet. DoltLab is the self-hosted, self-managed version of DoltHub, where you can push your Dolt databases, collaborate on changes, manage pull…

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  4. 1 min read

    DoltHub comes to Seattle!

    Today, we’re excited to announce the launch of DoltHub’s Seattle office! 🏢🎉 We've been busy this week getting moved into a new office space in the University District in Seattle. We're right next to the University District light rail station and…

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  5. REFERENCE
    13 min read

    So you want Database Versioning?

    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…

    Read More
  6. REFERENCE
    7 min read

    How We Benchmark Dolt

    Dolt is a MySQL-compatible version-controlled database. It's the only SQL database with branches that you can diff, merge and sync. Performance has been a major focus of Dolt development over the past year, and we've made substantial progress on that…

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  7. BOUNTY
    5 min read

    Data, Deaths, and the Damn Prison System

    Steal this (note)book If you want to reproduce the charts from this notebook, clone this repository which has everything you need including the CSV files. The data comes from DoltHub's jails data bounty. Check it out. The data analysis was done in…

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  8. REFERENCE
    7 min read

    So you want Database Forks?

    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 us. Dolt is a lot of things. Dolt is a version controlled database, a Git database, Git for data, data…

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  9. FEATURE RELEASE
    7 min read

    DoltHub and DoltLab now support SQL uploads

    Today we're excited to announce that DoltHub and DoltLab now support .sql file uploads. Prior to this change, users could only upload a .csv, .psv, .xlsx, or .json file using DoltHub and DoltLab's web UI. Although these are quite common file formats for uploading data on…

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  10. INTEGRATION
    7 min read

    Embedding Dolt in your Golang Application

    Dolt is a version controlled database. When run as a server, Dolt is MySQL compatible, so you can connect to it with any MySQL tools or clients. Running Dolt as a server is perfect to back applications, just like you would with MySQL or Postgres. Dolt is also Git for Data. Use the Dolt command line interface (CLI) without a running server and Dolt works the same as Git. Dolt can work offline when used this way. But what if you want to connect a program to an offline copy of Dolt? You can do this in "Git for Data" mode by automating the command line interface, although this can get cumbersome…

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  11. SQL
    5 min read

    Benchmarking Dolt's Import Performance

    Introduction If you want to work with a database, you probably want to get some data into it first. At DoltHub, we've spent a good chunk of time working on our table import feature which lets you import CSV, JSON, XLSX, and Parquet data into Dolt. In the past…

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  12. TECHNICAL
    10 min read

    Don't change your open-source database's storage engine

    Want a technical challenge? Find an open source database and change its storage engine. You'll have to rewrite hundreds if not thousands of functions, validate your changes against test suites, and continuously run benchmarks to ensure good…

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  13. FEATURE RELEASE
    2 min read

    How to set up branch protection rules on DoltHub

    For those of you that are new, Dolt is a database that supports Git-style versioning. DoltHub is a place on the internet to share and collaborate on Dolt databases. Dolt has Git-like functionality, including branch, merge, clone, push and pull…

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  14. REFERENCE
    7 min read

    So you want Spreadsheet Version Control?

    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 us. Dolt is a lot of things. Dolt is a version controlled database, a Git database, Git for data, data…

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  15. REFERENCE
    10 min read

    Sleepless in Seattle: Wake up with AWS Incident Manager

    Dolt is a MySQL compatible database with Git like features. On May 18th, we launched Hosted Dolt, a cloud-hosted Dolt database with built-in logs and monitoring. If you're not familiar with Hosted Dolt, here are some blogs to get started: Introduction to Hosted Dolt Hosted Dolt Infrastructure…

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  16. USE CASE
    11 min read

    Dolt Case Studies

    This is our annual update on how our customers are using Dolt, the world's first and only SQL database that you can branch and merge, fork and clone, push and pull just like a git repository. Last year's update included a lot more speculative use cases because we had fewer customers deploying Dolt in production. The one before that was more speculative still, because we hadn't found our product market fit yet. This year's update will focus on how our production customers are using…

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  17. SQL
    10 min read

    Relational Database Design: A Step-By-Step Guide

    Introduction As an engineer working on Dolt, I spend most of my time working on the internals of a database system. Recently, I worked on using Dolt as a product to create a dataset that stored the entire Bitcoin blockchain's history. As I…

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  18. 5 min read

    Dolt now supports Column Statistics

    Dolt is a version controlled database that combines the features of Git and functionality of MySQL. In this release, we added column statistics, getting us one step closer to MySQL's feature set. Our analyzer can utilize these statistics to improve…

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  19. BOUNTY
    9 min read

    I analyzed 1835 hospital price lists so you didn't have to

    I analyzed 1835 hospital price lists so you didn't have to. But if you're a data scientist, you can do it too! This article was written in part for python-centric data scientists and programmers, and comes with a follow-along notebook where we clean…

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  20. REFERENCE
    8 min read

    Working with JSON in Dolt

    Document databases like MongoDB rose to prominence because of their ability to store data in a hierarchical format like Javascript Object Notation, aka JSON. Some applications just make more sense when you persist the JSON your application is using…

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