better-sqlite3 with multiple-cipher encryption support
npm install @electron-prebuilds-preview/better-sqlite3-multiple-ciphers8.0.1
8.0.1
3.40.0
1.5.4
8.0.1-beta.0
8.0.0
3.40.0
1.5.4
better-sqlite3 is used by thousands of developers and engineers on a daily basis. Long nights and weekends were spent keeping this project strong and dependable, with no ask for compensation or funding, until now. If your company uses better-sqlite3, ask your manager to consider supporting the project:
get() |select 100 rows all() |select 100 rows iterate() 1-by-1|insert 1 row run()|insert 100 rows in a transaction|
bash
npm install better-sqlite3-multiple-ciphers
`
$3
`bash
npm install better-sqlite3-multiple-ciphers@beta
`
> You must be using Node.js v14.21.1 or above. Prebuilt binaries are available for Node.js LTS versions and Electron. If you have trouble installing, check the troubleshooting guide.
Usage
`js
const db = require('better-sqlite3-multiple-ciphers')('foobar.db', options);
const row = db.prepare('SELECT * FROM users WHERE id = ?').get(userId);
console.log(row.firstName, row.lastName, row.email);
`
Though not required, it is generally important to set the WAL pragma for performance reasons.
`js
db.pragma('journal_mode = WAL');
`
##### In ES6 module notation:
`js
import Database from 'better-sqlite3-multiple-ciphers';
const db = new Database('foobar.db', options);
db.pragma('journal_mode = WAL');
`
$3
A database can be encrypted and decrypted simply using key and rekey PRAGMA statements.
Running this will encrypt the database using the default cipher:
`js
const db = require('better-sqlite3-multiple-ciphers')('foobar.db', options);
db.pragma("rekey='secret-key'");
db.close();
`
To read an encrypted database (assuming default cipher):
`js
const db = require('better-sqlite3-multiple-ciphers')('foobar.db', options);
db.pragma("key='secret-key'");
const row = db.prepare("SELECT * FROM users WHERE id = ?").get(userId);
console.log(row.firstName, row.lastName, row.email);
`
To read an encrypted database _(legacy SQLCipher)_ created by tools like DB Browser for SQLite:
`js
const db = require('better-sqlite3-multiple-ciphers')('foobar.db', options);
db.pragma(cipher='sqlcipher')
db.pragma(legacy=4)
db.pragma("key='secret-key'");
const row = db.prepare("SELECT * FROM users WHERE id = ?").get(userId);
console.log(row.firstName, row.lastName, row.email);
`
The same method should be used if you want to create a new encrypted database that can be opened using DB Browser for SQLite.
$3
Why should I use this instead of node-sqlite3?
- node-sqlite3 uses asynchronous APIs for tasks that are either CPU-bound or serialized. That's not only bad design, but it wastes tons of resources. It also causes mutex thrashing which has devastating effects on performance.
- node-sqlite3 exposes low-level (C language) memory management functions. better-sqlite3 does it the JavaScript way, allowing the garbage collector to worry about memory management.
- better-sqlite3 is simpler to use, and it provides nice utilities for some operations that are very difficult or impossible in node-sqlite3.
- better-sqlite3 is much faster than node-sqlite3 in most cases, and just as fast in all other cases.
#### When is this library not appropriate?
In most cases, if you're attempting something that cannot be reasonably accomplished with better-sqlite3, it probably cannot be reasonably accomplished with SQLite3 in general. For example, if you're executing queries that take one second to complete, and you expect to have many concurrent users executing those queries, no amount of asynchronicity will save you from SQLite3's serialized nature. Fortunately, SQLite3 is very very fast. With proper indexing, we've been able to achieve upward of 2000 queries per second with 5-way-joins in a 60 GB database, where each query was handling 5–50 kilobytes of real data.
If you have a performance problem, the most likely causes are inefficient queries, improper indexing, or a lack of WAL mode—not better-sqlite3 itself. However, there are some cases where better-sqlite3` could be inappropriate: