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Scalar是什么

Chen Xiaojie edited this page Dec 18, 2022 · 1 revision

在数据库中,如果一个属性attribute是 scalar 的,意味着它只能有一个数值来源,如:

{
    "userId": "0001",
    "name": "kyakya"
}

而非 scalar 的属性attribute则像 hobbies 那样是一个数组:

{
    "userId": "0001",
    "name": "kyakya",
    "hobbies": [ "video game", "crossdressing" ] 
}

也可以像 work 那样,是一个内嵌对象nested object

{
    "userId": "0001",
    "name": "kyakya",
    "work": {
        "phone": "080-xxxx-xxxx",
        "contry": "Japan"
    }
}

从物理/数据角度

具体查看该网址

scalar

Reference

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