关系型数据库 vs. NoSQL：为什么选择 NoSQL？

代码示例

1{
2  "productName": "Laptop",
3  "category": "Electronics",
4  "price": 1200.00,
5  "stock": 50,
6  "specifications": {
7    "ram": "16GB",
8    "storage": "512GB SSD",
9    "screenSize": "14 inches"
10  },
11  "reviews": [
12    { "userId": 101, "rating": 5, "comment": "Great performance!" },
13    { "userId": 103, "rating": 4, "comment": "Battery could be better." }
14  ]
15}

代码示例

1{
2  "productName": "T-Shirt",
3  "category": "Clothing",
4  "price": 9.99,
5  "stock": 300,
6  "details": {
7    "material": "100% Cotton",
8    "sizesAvailable": ["S", "M", "L", "XL"]
9  },
10  "reviews": [
11    { "userId": 102, "rating": 5, "comment": "Very comfortable." }
12  ]
13}