1. REFERENCE
    9 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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Found 20 matching articles.
  1. REFERENCE
    5 min read

    Dolt's Commit Graph

    Dolt is the world's first version controlled SQL database . How would you build such a thing? Dolt's unique storage engine implements a Git-style commit graph of Prolly Trees . This blog explains the Dolt commit graph in detail and how ...

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  2. REFERENCE
    11 min read

    Prolly Trees

    "Prolly Tree" is short for "Probabilistic B-tree" . "Prolly Tree" was coined by the good folks who built Noms , who as far as we can tell invented the data structure. We here at DoltHub have immense respect for their pioneering work, without...

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  3. REFERENCE
    5 min read

    Dolt's Storage Engine

    Dolt is the world's first version controlled SQL database . How would you build such a thing? A few months ago, I wrote an article outlining the motivations, requirements, and choices that led to Dolt's Architecture . Today, in the next...

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  4. INTEGRATION
    21 min read

    ASP.NET Core + Dolt

    DoltDB is the world's first fully-versioned relational database . You can branch, merge, diff, push, and pull your relational data in the same ways that Git allows you to work with source code files. If you're curious what sorts of use cases th...

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  5. SQL
    5 min read

    100% Correctness

    Dolt is a SQL database with Git-like versioning features intended to be a drop-in replacement for MySQL. In order to be a drop-in replacement, Dolt needs to match MySQL behavior as closely as possible. We chose sqllogictests , a collection of ...

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  6. GOLANG
    2 min read

    Adding Color to Terminal Output in Go

    When working with command-line applications in Go, color can be a great way to enhance the user experience, convey information in a more visually appealing way, or generally communicate more effectively. In this article, I'll show you some easy way...

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  7. FEATURE RELEASE
    10 min read

    Shallow Clone Support

    Dolt is the first version controlled SQL database, and the natural consequence of that is it needs to store every value of every row that has ever existed in your database. Git is similar, and it turns out that st...

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  8. 2 min read

    Announcing Dolt PGO Builds

    In a recent blog post Zach demonstrated that building Dolt using Golang's Profile-Guided Optimization (PGO) improved benchmarking performance by 5%. Today we're excited to announce that Dolt releases, starting with v1.32.4 , are now buil...

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  9. SQL
    5 min read

    Automatic Statistic Updates

    Dolt is close to 100% MySQL compatible and only 2x slower than MySQL. Few customers find bugs that we cannot fix in under 24 hours, and the difference between a 10ms query in Dolt that is 5ms in MySQL is usually OK. But on rare occasions we still…

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  10. TECHNICAL
    8 min read

    Adding Types to DoltgreSQL

    In November 2023 , we officially started development on DoltgreSQL , which is a version of Dolt built to be a drop-in replacement for PostgreSQL. For those that may not know, Dolt is the world's first database that is built, from the grou...

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  11. HOSTEDFEATURE RELEASE
    2 min read

    Upgrading Instances on Hosted Dolt

    Hosted Dolt is for running online, production Dolt databases. Last year we added support for read replicas . You can choose up to 8 read replicas and every write to the primary server is replicated to the read replicas. Since then, we've inc...

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  12. REFERENCE
    18 min read

    Getting Started: Rails and Dolt

    We're on a mission to show that Dolt , the world's first version controlled SQL database , works with all your favorite tools in all your favorite languages . Today we head to Ruby -land and show you how to integrate Dolt with Rails , a p...

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  13. 8 min read

    Understanding Tags in Go

    In Go, tags allow developers to attach metadata to struct fields. These tags can drive features and behaviors in various libraries and tools which access the tags via reflection. This article provides an overview of tags in Go, including their synt...

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  14. 16 min read

    Testcontainers for Go with Dolt

    Recently, a customer reached out to our team asking for a blog using Dolt with Testcontainers , "an open source framework for providing throwaway, lightweight instances of databases, message brokers, web browsers, or just about anything that c...

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  15. GOLANG
    14 min read

    Testing out Profile-Guided Optimization on Dolt's SQL Benchmarks

    Introduction We're building Dolt , the world's first version-controlled SQL database. We measure Dolt's performance with sysbench , an industry standard set of SQL benchmarks that you can use to get an apples-to-apples performance compari...

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  16. REFERENCE
    21 min read

    Getting Started: Django and Dolt

    We're on a mission to show that Dolt , the world's first version controlled database , works with all your favorite tools in all your favorite languages . Today we head back to Python -land and show you how to integrate Dolt with Django ,...

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  17. SQL
    3 min read

    Improvements to SQL Function Support

    Dolt is a versioned database that has a mix of Git and MySQL features. One of our goals is to be a drop-in replacement for MySQL. As a result, we need to support all the functions MySQL does; these are things like SIN() , CONCAT() , CURRENT_T...

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  18. 11 min read

    MySQL Views: How and why with examples

    MySQL allows you to define views on your databases that let you write complex queries you can select from just like they were tables. This tutorial will teach you how to use views and give you some ideas about what they're good for. What...

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  19. USE CASEREFERENCE
    5 min read

    Dolt + Metabase

    A customer wanted to use Metabase to visualize Dolt databases. Dolt provides powerful versioning features to Metabase charts and dashboards. Dolt "just works" with Metabase using the MySQL connector so it's really easy to get started. T...

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  20. SQL
    7 min read

    Join Statistics

    Dolt is the first relational database with history independent version control. Dolt's Git-like commit graph captures snapshots in a format that efficiently diffs and merges tables and schemas. We recently added index scan costing to Dolt's S...

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