dameng-mcp-server

dameng-mcp-server

MCP server for DaMeng database, enabling AI assistants to execute SQL queries, list tables, describe table structures, and retrieve schema information.

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README

DaMeng MCP Server

达梦数据库MCP (Model Context Protocol) 实现,支持在 AI 助手中直接操作达梦数据库。

NPM Version License Node Version

功能特性

  • 执行 SQL 查询
  • 列出数据库表
  • 描述表结构
  • 获取数据库模式信息
  • 支持连接池管理
  • 完整的输入验证

快速开始

安装

使用 npm 全局安装:

npm install -g dameng-mcp-server

或使用 npx(无需安装):

npx dameng-mcp-server

配置

创建 .env 文件并配置数据库连接信息:

cp .env.example .env

编辑 .env 文件:

DAMENG_HOST=localhost
DAMENG_PORT=5236
DAMENG_USER=SYSDBA
DAMENG_PASSWORD=your_password
DAMENG_SCHEMA=SYSDBA
DAMENG_POOL_SIZE=10

启动

dameng-mcp-server

在 Trae IDE 中使用

  1. 打开 MCP 设置
  2. 手动添加 MCP
  3. 使用以下配置:
{
  "mcpServers": {
    "dameng-mcp-server": {
      "command": "npx",
      "args": ["dameng-mcp-server"],
      "env": {
        "DAMENG_HOST": "localhost",
        "DAMENG_PORT": "5236",
        "DAMENG_USER": "SYSDBA",
        "DAMENG_PASSWORD": "your_password",
        "DAMENG_SCHEMA": "SYSDBA",
        "DAMENG_POOL_SIZE": "10"
      }
    }
  }
}

MCP 工具

execute_sql

执行 SQL 查询并返回结果。

参数:

参数 类型 必需 说明
sql string 要执行的 SQL 语句

示例:

{
  "sql": "SELECT * FROM users LIMIT 10"
}

list_tables

列出数据库中的所有表。

参数:

describe_table

描述指定表的结构,包括列名、数据类型等信息。

参数:

参数 类型 必需 说明
table_name string 要描述的表名

示例:

{
  "table_name": "users"
}

get_schema_info

获取数据库模式信息,包括所有表和视图的详细信息。

参数:

环境变量

变量 必需 默认值 说明
DAMENG_HOST - 数据库主机地址
DAMENG_PORT - 数据库端口(默认 5236)
DAMENG_USER - 数据库用户名
DAMENG_PASSWORD - 数据库密码
DAMENG_SCHEMA - 数据库模式名
DAMENG_POOL_SIZE 10 连接池大小

项目结构

dameng-mcp-server/
├── src/
│   ├── index.js          # MCP 服务器主入口
│   └── database.js       # 达梦数据库连接模块
├── .github/
│   └── workflows/
│       └── publish.yml    # NPM 发布工作流
├── package.json
├── .env.example
├── .npmignore
├── LICENSE
└── README.md

技术栈

  • @modelcontextprotocol/sdk: MCP SDK
  • dmdb: 达梦数据库 Node.js 驱动
  • zod: 输入验证
  • dotenv: 环境变量管理

系统要求

  • Node.js >= 18.0.0

故障排除

连接失败

  • 确认达梦数据库服务已启动
  • 检查 .env 文件中的连接配置
  • 验证网络连接和防火墙设置

dmdb 驱动问题

首次使用 dmdb 驱动可能需要编译,确保系统已安装必要的编译工具:

Ubuntu/Debian:

sudo apt-get install build-essential

macOS:

xcode-select --install

Windows: 安装 Visual Studio Build Tools

贡献

欢迎提交 Issue 和 Pull Request!

许可证

MIT

作者

zqeast zqeast@gmail.com

相关链接

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