使用MongoDB -- 资料库简易上手

1. 注册及登入mongo database

2. Altas 点这边

• 之後应该会出现这个画面
  

• 点击Add new project
  

• next後，create the Project

• 创建资料库
  

• 选免钱的
  

• create
  

• 点击Database Access
  

• 自己设定密码
  

• 点击Network Access，Add an IP address(右边的按下去)
  

• 回到Database，点击Browse Collection、Add My Own Data
  

• 回到Database，点击Connect
  

• 点中间的
  

• 复制程序码

#这是范例
mongodb+srv://admin:<password>@cluster0.ltujo.mongodb.net/myFirstDatabase?retryWrites=true&w=majority

新增资料

• 打开资料夹，先尝试使用这个资料库，随便建立一个档案

pip install mongo

import pymongo
from pymongo import MongoClient

cluster = MongoClient("刚刚复制的，password换成自己的就好")

db = cluster['discord_bot_database']
collection = db['data']

post = { "name" : "12345"}

collection.insert_one(post)

• 执行後
  

查询资料

• 找到第一个key值 = 12345

import pymongo
from pymongo import MongoClient

cluster = MongoClient("刚刚复制的")

db = cluster['discord_bot_database']
collection = db['data']

findone = collection.find_one({'name' : '12345'})

print(findone)

• 执行後
  

修改资料

• 修改第一个name值

import pymongo
from pymongo import MongoClient

cluster = MongoClient("刚刚复制的")

db = cluster['discord_bot_database']
collection = db['data']

first_data = {'name':"12345"}

second_data = {"$set" : {"name":"50000"}}

collection.update_one(first_data, second_data)
print("Successful")

• 结果
  

删除资料

• 删除第一个name

import pymongo
from pymongo import MongoClient

cluster = MongoClient("刚刚复制的")

db = cluster['discord_bot_database']
collection = db['data']

del_data = {"name":"50000"}

collection.delete_one(del_data)

print("Successful")

• 结果