What is DB3?

db3 is a fully decentralized database network which has the following key features

1. Account Based Data Permission Model

   Users can grant read and write permissions to dapp. Of course,users can also revoke permissions

2. ANSI SQL Compatible

   Dapp developers can use sql to access db3 just like using mysql in web2

3. Programable Data Virtual Machine(DVM)

   Dapp developers can develop data processing contracts and deploy it to db3 just like developing data backend in web2

4. Horizontally scaling out

   Scale horizontally using sharding chains

5. Global Replication

   Every sharding chain is replicated globally

Status

It's under a very early stage. if you are interested in this project, Issues, Discussions or PRs are welcome.

Localnet

• Install Tendermint https://github.com/tendermint/tendermint/releases/tag/v0.34.22

v0.34.22

MacOS:

wget https://github.com/tendermint/tendermint/releases/download/v0.34.22/tendermint_0.34.22_darwin_amd64.tar.gz

Linux:

wget https://github.com/tendermint/tendermint/releases/download/v0.34.22/tendermint_0.34.22_linux_amd64.tar.gz

and add tendermint to your PATH

• Build

cargo build --features binary

• Run

cd tools && sh start_localnet.sh

Desigin

• account model
• architecture

License

Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions. See CONTRIBUTING.md.