一个针对于顾客和其多个地址关系建模的一个例子
分别使用规范化(引用)和非规范化(内嵌)存储:
1、规范化存储:
(在一个规范化的数据模型中, address 文档包含一个对父文档 patron 的引用):
{
_id: "joe",
name: "Joe Bookreader"
}
{
patron_id: "joe",
street: "123 Fake Street",
city: "Faketon",
state: "MA",
zip: "12345"
}
{
patron_id: "joe",
street: "1 Some Other Street",
city: "Boston",
state: "MA",
zip: "12345"
}
2、非规范化存储:
(把 address 数据直接内嵌到 patron 文档里面)
{
_id: "joe",
name: "Joe Bookreader",
addresses: [
{
street: "123 Fake Street",
city: "Faketon",
state: "MA",
zip: "12345"
},
{
street: "1 Some Other Street",
city: "Boston",
state: "MA",
zip: "12345"
}
]
}
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