Drizzle <> MySQL

要将 Drizzle 与 MySQL 数据库结合使用，你应该使用 mysql2 驱动程序

根据官方网站的描述，mysql2 是一款专注于性能的 Node.js MySQL 客户端。

Drizzle ORM 原生支持 mysql2 和 drizzle-orm/mysql2 包。

步骤 1 - 安装软件包

npm

yarn

pnpm

bun

npm i drizzle-orm mysql2 -D drizzle-kit

yarn add drizzle-orm mysql2 -D drizzle-kit

pnpm add drizzle-orm mysql2 -D drizzle-kit

bun add drizzle-orm mysql2 -D drizzle-kit

步骤 2 - 初始化驱动程序并进行查询

mysql2

mysql with config

import { drizzle } from "drizzle-orm/mysql2";

const db = drizzle(process.env.DATABASE_URL);

const response = await db.select().from(...)

import { drizzle } from "drizzle-orm/mysql2";

// You can specify any property from the mysql2 connection options
const db = drizzle({ connection:{ uri: process.env.DATABASE_URL }});

const response = await db.select().from(...)

如果你需要提供现有的驱动程序：

Client connection

Pool connection

import { drizzle } from "drizzle-orm/mysql2";
import mysql from "mysql2/promise";

const connection = await mysql.createConnection({
  host: "host",
  user: "user",
  database: "database",
  ...
});

const db = drizzle({ client: connection });

import { drizzle } from "drizzle-orm/mysql2";
import mysql from "mysql2/promise";

const poolConnection = mysql.createPool({
  host: "host",
  user: "user",
  database: "database",
  ...
});

const db = drizzle({ client: poolConnection });

IMPORTANT

对于内置的 migrate 函数和 DDL 迁移，我们和驱动程序强烈建议你使用单个 client 连接。

对于查询，你可以根据业务需求随意使用 client 或 pool。

下一步是什么？

Manage schema

Drizzle Schema PostgreSQL data types Indexes and Constraints Database Views Database Schemas Sequences Extensions

Query data

Relational Queries Select Insert Update Delete Filters Joins sql`` operator