The power of programming, in your database.

TypeDB enables software engineers to build data applications faster, with a modern language that avoids complexity.


match
  $user isa user,
    has full-name $name,
    has email $email;
fetch
  $name;
  $email;
# This returns all users of any type

match
  $user isa employee,
    has full-name $name,
    has email $email,
    has employee-id $id;
fetch
  $name;
  $email;
  $id;
# This returns only users who are employees

match 
  $user-type sub user;
  $user isa $user-type,
    has full-name $name,
    has email $email;
fetch
  $name;
  $email;
  $user-type;
# This returns all users and their type

Every data point has a type that you define, like employee. Types can also be subtypes of other types, like user. So, a query for user entities could return both employee and contractor entities, without the query having to specify this. We call this polymorphism, and it drastically simplifies how you interact with your database.

Learn more


insert

  $john isa full-time-employee,
    has full-name "John Doe", 
    has primary-email "john.doe@typedb.com",
    has email "j.doe@typedb.com",
    has email "john@typedb.com",
    has employee-id 183;
  $readme isa file, has path "/home/johndoe/repos/typedb/readme.md";
  $edit isa action, has name "edit file";
  $kevin isa user, has email "kevin@typedb.com";

  $perm (subject: $john, object: $readme, action: $edit) isa permission;
  $rqst (target: $perm, requestee: $kevin) isa change-request, has requested-change "revoke";

Types, attributes and relations aren’t things you have to implement: they’re core features. With the freedom to model hierarchies, multi-valued attributes, n-ary relations, nested relations and more, the conceptual data model is the data model. This makes database design, and writing queries, incredibly intuitive.

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define

  user sub entity,
    owns full-name,
    owns email @unique;
  employee sub user,
    owns employee-id @key,
    plays team-membership:member;

  membership sub relation, abstract,
    relates parent,
    relates member;
  team-membership sub membership,
    relates team as parent;

  full-name sub attribute, value string;
  id sub attribute, value string;
  email sub id;
  employee-id sub id;

TypeDB ensures conceptual consistency between your type hierarchies and declared type behaviours. This allows the schema to be trivially extended with no migrations or downtime. You can create abstract types and override supertype properties within the schema, bringing the expressive power of OOP to the database layer.

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match
  $user isa user;
fetch
  $user: full-name;

match
  $user isa user, has email "john@typedb.com";
fetch
  $user: full-name;

match
  $user isa user, has email "john@typedb.com";
  (subject: $user, object: $tql, action: $action) isa permission;
  $tql isa file, has extension "tql";
fetch
  $user: full-name;

match
  $user isa user;
  (subject: $user, object: $tql, action: $action) isa permission;
  $tql isa file, has extension "tql";
  (team: $eng, member: $user) isa team-membership;
  $eng isa team, has name "Engineering"; 
fetch
  $user: full-name;

TypeQL works through declarative pattern matching, allowing queries to be scoped to any level in the type hierarchy without considering physical data stores or execution strategy. As a composable language, concatenating two valid patterns will always produce a new valid one. Thanks to the high level of abstraction and near-natural syntax, domain experts can instantly understand a query's intent even with no knowledge of TypeQL.

Learn more


define
  weekly-hours sub attribute value long;
  full-time-employee sub employee;
  part-time-employee sub employee, owns weekly-hours;

insert
  $francois isa full-time-employee,
    has full-name "François Durand",
    has email "francois@typedb.com",
    has employee-id 184,
    has weekly-hours 35;

# [THW03] Invalid Write: Attribute of type 'weekly-hours' is
# not defined to be owned by type 'full-time-employee'.

With declarative schemas backed by static type checking, all queries are validated to ensure nonsensical writes are automatically blocked, and nonsensical reads throw an exception instead of returning an empty result set. Sessions and transactions are also strongly typed, preventing unauthorized and unintentional modifications from committing.

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Model data directly as entities with attributes and relations

Designing your database requires nothing more than describing the real things your data represents. This puts an end to ‘object-relational mismatch’. You no longer need to think about your data in a different way between your application and your database.

TypeDB

Relational

Document

Graph


insert

  $john isa full-time-employee,
    has full-name "John Doe", 
    has primary-email "john.doe@typedb.com",
    has email "j.doe@typedb.com",
    has email "john@typedb.com",
    has employee-id 183;
  $readme isa file, has path "/home/johndoe/repos/typedb/readme.md";
  $edit isa action, has name "edit file";
  $kevin isa user, has email "kevin@typedb.com";

  $perm (subject: $john, object: $readme, action: $edit) isa permission;
  $rqst (target: $perm, requestee: $kevin) isa change-request, has requested-change "revoke";

TypeDB uses the Enhanced Entity-Relationship model with a declarative schema and static type checking. This allows the natural implementation of a type hierarchy, multivalued attributes, and n-ary and nested relations. Leverage OOP concepts like abstraction, inheritance, and polymorphism without warping the conceptual model. Normalization, null values, and reification are things of the past.

Learn more


DO $$
DECLARE
    inserted_user_id INTEGER;
    inserted_resource_id INTEGER;
    inserted_action_id INTEGER;
    inserted_requestee_id INTEGER;
    inserted_permission_id INTEGER;
BEGIN
    INSERT INTO users (id, full_name)
    VALUES (DEFAULT, 'John Doe')
    RETURNING id INTO inserted_user_id;
    
    INSERT INTO user_emails (user_id, email, is_primary)
    VALUES
        (inserted_user_id, 'john.doe@typedb.com', TRUE),
        (inserted_user_id, 'j.doe@typedb.com', FALSE),
        (inserted_user_id, 'john@typedb.com', FALSE);
    
    INSERT INTO employees (user_id, employee_id)
    VALUES (inserted_user_id, 183);
    
    INSERT INTO full_time_employees (user_id)
    VALUES (inserted_user_id);
    
    INSERT INTO resources (id)
    VALUES (DEFAULT)
    RETURNING id INTO inserted_resource_id;
    
    INSERT INTO files (inserted_resource_id, path)
    VALUES (inserted_resource_id, '/home/johndoe/repos/typedb/readme.md');
    
    INSERT INTO actions (id, name)
    VALUES (DEFAULT, 'edit file')
    RETURNING id INTO inserted_action_id;
    
    INSERT INTO users (id, full_name)
    VALUES (DEFAULT, NULL)
    RETURNING id INTO inserted_requestee_id;
    
    INSERT INTO user_emails (user_id, email, is_primary)
    VALUES (inserted_requestee_id, 'kevin@typedb.com', FALSE);
    
    INSERT INTO permissions (id, subject, object, action)
    VALUES (DEFAULT, inserted_user_id, inserted_resource_id, inserted_action_id)
    RETURNING id INTO inserted_permission_id;
    
    INSERT INTO change_requests (id, target, requestee, requested_change)
    VALUES (DEFAULT, inserted_permission_id, inserted_requestee_id, 'revoke');
    
    COMMIT;
END $$;

SQL was designed in a pre-OOP era. Schemas and queries quickly grow out of control when implementing class-table inheritance and normalizing multivalued attributes. Inheritance is also impossible to implement without losing referential integrity. This can only be fixed with brittle constraint-defining syntax that requires continual maintenance or integrity control in the application layer.

Learn more


db.change_requests.aggregate([
    {
        $lookup: {
            from: "permissions",
            localField: "target",
            foreignField: "_id",
            as: "permission"
        }
    },
    {
        $unwind: {
            path: "$permission"
        }
    },
    {
        $lookup: {
            from: "users",
            localField: "user",
            foreignField: "_id",
            as: "user"
        }
    },
    {
        $unwind: {
            path: "$user"
        }
    },
    {
        $lookup: {
            from: "users",
            localField: "permission.user",
            foreignField: "_id",
            as: "permission.user"
        }
    },
    {
        $unwind: {
            path: "$permission.user"
        }
    },
    {
        $lookup: {
            from: "identifiers",
            localField: "permission.object",
            foreignField: "_id",
            as: "permission.object"
        }
    },
    {
        $unwind: {
            path: "$permission.object"
        }
    },
    {
        $lookup: {
            from: "actions",
            localField: "permission.action",
            foreignField: "_id",
            as: "permission.action"
        }
    },
    {
        $unwind: {
            path: "$permission.action"
        }
    },
    {
        $project: {
            _id: false,
            user: "$permission.user.email",
            requestee: "$user.email",
            target: "$permission.object.identifier",
            action: "$permission.action.name",
            request: "$req_change"
        }
    }
])

Document databases are designed and optimized to store hierarchical data. They can easily store multivalued attributes as list fields and null values as the absence of fields. However, inserting and retrieving highly interconnected data is complicated and poorly optimized. All similarly shaped data is dumped into the same collection without a schema, leaving the backend developer responsible for maintaining integrity and structure.

Learn more


MATCH
    (john:User),
    (readme:File {path: "/home/johndoe/repos/typedb/readme.md"}),
    (edit:Action {name: "edit file"})
WHERE (
        john.primary_email = "john@typedb.com"
        OR "john@typedb.com" IN john.alias_emails
    ) AND NOT EXISTS {
        MATCH (john)<-[:SUBJECT]-(perm:Permission)-[:OBJECT]->(readme)
        WHERE EXISTS ( (perm)-[:ACTION]->(edit) )
    }
WITH john, readme, edit 
CREATE (john)<-[:SUBJECT]-(perm:Permission)-[:OBJECT]->(readme)
WITH edit, perm
CREATE (perm)-[:ACTION]->(edit);
MATCH
    (perm:Permission),
    (perm)-[:SUBJECT]->(john:User),
    (perm)-[:OBJECT]->(readme:File {id: "/home/typedb/repos/typedb/readme.md"}),
    (perm)-[:ACTION]->(edit:Action {name: "edit file"}),
    (kevin:User)
WHERE (
        john.primary_email = "john@typedb.com"
        OR "john@typedb.com" IN john.alias_emails
    ) AND (
        kevin.primary_email = "kevin@typedb.com"
        OR "kevin@typedb.com" IN kevin.alias_emails
    )
CREATE
    (rqst:ChangeRequest {requested_change: "revoke"}),
    (rqst)-[:TARGET]->(perm),
    (rsqt)-[:REQUESTEE]->(kevin);

Graph databases, despite excelling at storing traditional graph-like data, cannot natively express relations other than strictly binary ones between two entities. This forces you to reify the model: turn relationships from edges into nodes, blurring the lines between entity and relation. Polymorphism is challenging to handle without a proper schema, forcing type hierarchies to be implemented as structureless data labels.

Learn more

Modify your data model without refactoring or migrating

Extending an SQL database often involves a lengthy migration process. With TypeDB, you can extend your model without refactoring your queries or application code. Everything still works, because the data logic is in the structure, not the query.

TypeDB

Relational

Document

Graph


match
  $user isa user, has email $email;
  $rsrc isa! $resource-type, has id $id;
  $resource-type sub resource;
  $own (resource: $rsrc, owner: $user) isa resource-ownership;
fetch
  $email;
  $resource-type;
  $id;

TypeDB is a truly polymorphic database. Queries are written in a high-level declarative language and resolved against the schema at query-time. Variables implicitly match all valid types, so queries never have to be updated when new subtypes are added. Attributes and relations are always implemented in the same way, so cardinality changes never require a change to the underlying model. All this means that extensions to the data model are trivial, and don't require refactors.

Learn more


SELECT
    ue.email AS email,
    'file' AS resource_type,
    f.path AS id
FROM users u
JOIN user_emails ue
ON u.id = ue.user_id
JOIN resource_ownerships ro
ON u.id = ro.user_id
JOIN resources r
ON ro.resource_id = r.id
JOIN files f
ON r.id = f.resource_id
UNION ALL
SELECT
    ue.email AS email,
    'directory' AS resource_type,
    d.path AS id
FROM users u
JOIN user_emails ue
ON u.id = ue.user_id
JOIN resource_ownerships ro
ON u.id = ro.user_id
JOIN resources r
ON ro.resource_id = r.id
JOIN directories d
ON r.id = d.resource_id
UNION ALL
SELECT
    ue.email AS email,
    'commit' AS resource_type,
    c.hash AS id
FROM users u
JOIN user_emails ue
ON u.id = ue.user_id
JOIN resource_ownerships ro
ON u.id = ro.user_id
JOIN resources r
ON ro.resource_id = r.id
JOIN commits c
ON r.id = c.resource_id
UNION ALL
SELECT
    ue.email AS email,
    'repository' AS resource_type,
    re.name AS id
FROM users u
JOIN user_emails ue
ON u.id = ue.user_id
JOIN resource_ownerships ro
ON u.id = ro.user_id
JOIN resources r
ON ro.resource_id = r.id
JOIN repositories re
ON r.id = re.resource_id
UNION ALL
SELECT
    ue.email AS email,
    'table' AS resource_type,
    t.name AS id
FROM users u
JOIN user_emails ue
ON u.id = ue.user_id
JOIN resource_ownerships ro
ON u.id = ro.user_id
JOIN resources r
ON ro.resource_id = r.id
JOIN tables t
ON r.id = t.resource_id
UNION ALL
SELECT
    ue.email AS email,
    'database' AS resource_type,
    f.name AS id
FROM users u
JOIN user_emails ue
ON u.id = ue.user_id
JOIN resource_ownerships ro
ON u.id = ro.user_id
JOIN resources r
ON ro.resource_id = r.id
JOIN databases d
ON r.id = d.resource_id;

SQL's inability to natively model inheritance and polymorphism leads to brittle queries that must explicitly describe all data to be returned. When the data model changes, many queries cease to be valid, requiring extensive modifications to your application code. Not only does data need to be carefully migrated to maintain integrity, but the migration process extends outside of the database to any application components that need to interact with it.

Learn more


db.resource_ownerships.aggregate( [
    {
        $lookup:
        {
            from: "resources",
            localField: "resource",
            foreignField: "_id",
            as: "resource"
        }
    },
    {
        $unwind:
        {
            path: "$resource"
        }
    },
    {
        $lookup:
        {
            from: "users",
            localField: "owner",
            foreignField: "_id",
            as: "owner"
        }
    },
    {
        $unwind:
        {
            path: "$owner"
        }
    },
    {
        $unwind:
        {
            path: "$owner.emails"
        }
    },
    {
        $addFields:
        {
            resource_id: {
                $switch: {
                    branches: [
                        {
                            case: { 
                                $eq: ["$resource.resource_type", "file"]
                            }, 
                            then: "$resource.path" 
                        },
                        {
                            case: { 
                                $eq: ["$resource.resource_type", "directory"]
                            }, 
                            then: "$resource.path" 
                        },
                        {
                            case: { 
                                $eq: ["$resource.resource_type", "commit"]
                            }, 
                            then: "$resource.hash" 
                        },
                        {
                            case: { 
                                $eq: ["$resource.resource_type", "repository"]
                            }, 
                            then: "$resource.name" 
                        },
                        {
                            case: { 
                                $eq: ["$resource.resource_type", "table"]
                            }, 
                            then: "$resource.name" 
                        },
                        {
                            case: { 
                                $eq: ["$resource.resource_type", "database"]
                            }, 
                            then: "$resource.name" 
                        }
                    ]
                }
            }
        }
    },
    {
        $project: {
            _id: false,
            email: "$owner.emails",
            resource_type: "$resource.resource_type",
            id: "$resource_id"
        }
    }
 ] )

With document databases, the freeform structure makes inserting data trivial, but writing and validating queries a significant challenge. Migrating data relies on complete knowledge of its layout to ensure that no errors are introduced. When the layout of the data changes, any queries or code that rely on the previous structure stop working. The complex and brittle aggregation pipelines are particularly difficult to maintain and troubleshoot, especially when utilising lookups across multiple collections.

Learn more


MATCH
    (user:User)-[:OWNS]->(rsrc:Resource)
WITH
    rsrc,
    [user.primary_email] + user.alias_emails AS emails,
    labels(rsrc) AS resource_types,
    keys(rsrc) AS properties
UNWIND emails AS email
UNWIND resource_types AS resource_type
WITH
    rsrc, email, resource_type, properties,
    {
        File: "path",
        Directory: "path",
        Commit: "hash",
        Repository: "name",
        Table: "name",
        Database: "name"
    } AS id_type_map
WHERE resource_type IN keys(id_type_map)
AND id_type_map[resource_type] IN properties
RETURN email, resource_type, rsrc[id_type_map[resource_type]] AS id

In graph databases, properties are attached directly to the nodes that own them rather than being nodes themselves. Relocating attributes between nodes or reifying relations causes breaking changes to queries that rely on them. These changes to the logical data model and queries must be manually carried out due to the lack of a schema to define structure. Those model discrepancies can lead to data inconsistency and integrity issues.

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Queries run in real-time on a single source of truth

TypeDB has the performance to resolve even complex queries in milliseconds. So you never need to precompute results or store redundant copies, which can result in stale, inconsistent and incorrect results. Work with a single source of truth, all the time.

TypeDB

Relational

Document

Graph


define
  rule transitive-team-membership:
    when {
      (team: $team-1, member: $team-2) isa team-membership;
      (team: $team-2, member: $member) isa team-membership;   
    } then {
      (team: $team-1, member: $member) isa team-membership;
    };

match
  $user isa user, has email $email;
  $team isa team, has name $name;
  (team: $team, member: $user) isa team-membership;
fetch
  $email;
  $name;

TypeDB's built-in reasoning engine allows rules to be defined in the schema and resolved at query time. Rules are constructed using first-order logic and define how new facts can be inferred from existing data. When a query is issued, matching rules are triggered using the most recent data available. This allows all computed data to be built on a single source of truth, ensuring accuracy and consistency without delay or redundancy.

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CREATE PROCEDURE reload_inherited_team_memberships()
LANGUAGE SQL
BEGIN ATOMIC
TRUNCATE TABLE inherited_team_memberships;
WITH RECURSIVE parent_teams (team, member) AS (
    SELECT team_memberships.team, team_memberships.member
    FROM team_memberships
    WHERE team_memberships.member IN (
        SELECT id
        FROM user
    )
    UNION ALL
    SELECT team_memberships.team, team_memberships.member
    FROM team_memberships
    JOIN parent_teams
    ON parent_teams.team = team_memberships.member
)
INSERT INTO inherited_team_memberships (team, member)
SELECT team, member
FROM parent_teams;
COMMIT;
END;

SELECT users.email AS email, teams.name AS name
FROM inherited_team_memberships
JOIN users
ON users.id = inherited_team_memberships.member
JOIN teams
ON teams.id = inherited_team_memberships.team;

SQL's stored procedures enable computed data to be generated periodically. As modern data has grown in complexity, they have ceased to be performant enough for real-time use. Stale data accumulates as updates aren't immediately reflected, creating inconsistencies between the source and derived data. Scripts calling multiple procedures can even leave the data in an incorrect state due to propagating errors or race conditions.

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Robust developer tools

We provide and maintain a whole ecosystem of reliable tools and documentation that make developing with TypeDB a joy.

Instant setup

Run in a local Docker container or on AWS, GCP, and Azure with TypeDB Cloud, no dependencies/config needed.

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Powerful tools

Manage databases, build and execute queries, and explore results with TypeDB Studio, a cross-platform IDE.

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Robust APIs

Build complex and high-volume transactional applications with reactive and resilient open-source clients.

Learn more

Full support for your favorite language

We provide and officially support native drivers for all the languages below. Our APIs are asynchronous, reactive, stateful, and programmatic.

View GitHub

Learn more

Rust

Docs GitHub Crates

cargo add typedb-driver

Python

Docs GitHub PyPI

pip install typedb-driver

Node.js

Docs GitHub NPM

npm install typedb-driver

Java

Docs GitHub Repo

com.vaticle.typedb:typedb-driver

C#

Docs GitHub NuGet

dotnet add package TypeDB.Driver

C++

Docs GitHub

#include <typedb.hpp>

C

Docs GitHub

#include <typedb_driver.h>

Go

GitHub

go get github.com/typedb/typedb-driver/go

Request your language

Submit request on GitHub

Get started in the cloud for free

TypeDB Cloud is a fully-managed cloud database for your application, starting at $0/month with generous limits. Once your application needs it, upgrade for enterprise-level availability, auto-scaling, security and access control.

Learn more

	Global deployment, cloud agnostic Deploy in regions across AWS, GCP, and Azure, with different databases in different cloud providers and regions.
	Scalability on demand, native clustering Connect to clusters with topology-aware clients which can load balance requests across multiple replicas within a cluster.
	Secure by default, roles and encryption Ensure a high level of protection to safeguard data and maintain confidentiality with fully secured by default, with authentication as well as storage and network encryption.
	Always available, automatic failover Guarantee constant access to data thanks to synchronous replication and replicas which will automatically failover if the primary fails.
	Teams and projects, organizational governance Create teams, members and projects to manage databases across the entire organization with ease.

Supported by a global community

The TypeDB community is vibrant, active and always helpful. Join us on Discord or make contributions on GitHub. New faces are always welcome.

Discord

Twitter

YouTube

Developers love TypeDB

With its simple yet immensely powerful query language, native support for N-ary relationships and focus on semantic schema, TypeDB solves all our modeling problems so that we can focus more on solving higher level problems instead of tweaking traditional graph databases to fit our use cases.

Ram Anvesh

TypeDB enables us to model the supply chains of large Global CPG clients and identify environmental and social risks. We have found its strongly typed nature and expressivity to be world leading, allowing our customers to gain novel insights. With TypeDB, we can solve problems at the world's greatest companies.

Dixit Shah

For developers, TypeDB is really easy to work with. Its unique and expressive type system enables us to spend less time data modeling. We can easily integrate complex biomedical datasets. TypeDB provides us the backbone to our therapeutics platform to cure neurodegenerative diseases.

Nik Sharma

TypeDB's expressivity allows us to unify all levels of cyber intelligence for cyber security knowledge management systems. Through nested and hyper relations, we can easily represent TTPs and observables, attribution and victimology. During an attack, this gives analysts 360 views of any observable.

Samuel Hassine

TypeDB is a powerful framework for data exploration. The way data, attributes and relations can be expressed in a polymorphic manner allows us to build a rich network of multi-levels analysis and open opportunities to query, discover and infer interactions.

Jean-Paul Mochet

TypeDB provides a strongly-typed database with N-ary relations that enables modeling the world much closer to reality compared to other databases. In addition, its built-in inference engine enables to build next generation AI systems — one of the many reasons to choose TypeDB to model biomedical data.

Konrad Myśliwiec

TypeDB makes it easy for our robots to operate autonomously in the real world by being the centre of their understanding. TypeDB makes it easy to incorporate expert knowledge and advanced reasoning into its knowledge base.

Joris Sijs

Get started

Start building

Cloud or container, a polymorphic database with a conceptual data model, a strong subtyping system, a symbolic reasoning engine, and a type-theoretic language is minutes away.

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Platform

Tools

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Community

Learn

Content

The power of programming, in your database.

Principled

Intuitive

Extensible

Declarative

Safe

Model data directly as entities with attributes and relations

TypeDB

Relational

Document

Graph

Modify your data model without refactoring or migrating

TypeDB

Relational

Document

Graph

Queries run in real-time on a single source of truth

TypeDB

Relational

Document

Graph

Robust developer tools

Instant setup

Powerful tools

Robust APIs

Full support for your favorite language

Rust

Python

Node.js

Java

C#

C++

C

Go

Request your language

Get started in the cloud for free

Global deployment, cloud agnostic

Scalability on demand, native clustering

Secure by default, roles and encryption

Always available, automatic failover

Teams and projects, organizational governance

Supported by a global community

Developers love TypeDB

Get started

Start building

Learn more