https://github.com/HassenSaidi/IC_sqlite

Port of the SQL database engine SQLite to the Internet Computer
https://github.com/HassenSaidi/IC_sqlite

Last synced: about 2 months ago
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Port of the SQL database engine SQLite to the Internet Computer

• Host: GitHub
• URL: https://github.com/HassenSaidi/IC_sqlite
• Owner: HassenSaidi
• License: apache-2.0
• Created: 2021-02-16T06:50:06.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2021-02-16T08:19:05.000Z (over 3 years ago)
• Last Synced: 2024-06-21T18:11:03.457Z (3 months ago)
• Language: C
• Homepage:
• Size: 2.49 MB
• Stars: 24
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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• awesome-icp - HassenSaidi/IC_sqlite

README

        
# IC_sqlite

This is a port of the SQL database engine SQLite to the

Internet Computer. SQLite is one of the most widely used database

software.  An SQLite database is normally stored in a single ordinary

disk file. However, there is a possibility to force an SQLite

database to exist purely in memory. The IC's orthogonal persistence

guarantees that a database create in memory is automatically

persisted. 

This port consists of compiling an unmodified source code of SQLite to

WebAssembly and providing a simple canister `src/sqlite3-canister.c`

exposing a database `update` and `query` interfaces.

# Content

The project contains:

* a pre-built sqlite.wasm canister ready to deploy to the IC

* a sqlite.did file containing the functions exposed by the canister:

  * `sqlite_init: () -> (int)` to initialize the database

  * `sqlite_update: (SQL statement text) -> (SQLite Result Code)` to update the database

  * `sqlite_query: (SQL statement text) -> (Query result text)` to query the database

* source code to build `sqlite.wasm` in the `src` folder. Since there is no official C SDK yet for building canisters, I lifted most of the C interface with the IC from [this example](https://github.com/enzoh/counter). 

# Dependencies

To build the project, you need:

* a compiler: `clang-8` or newer versions of the clang compiler.

* wasi-sdk with a pre-built libc.a. Technically, you don't need to use `wasi` at all. You can build your own libc.a independently.

* the DFINITY sdk to run a local replica and to install the canister.