MongoDB one-to-many storage

Source: Internet
Author: User
Tags mongodb zip

An example of modeling a customer and its multiple address relationships

Use normalized ( referenced ) and non-normalized ( inline ) storage, respectively:

1, standardized storage:

(In a normalized data model, the address document contains a reference to a parent document, patron):

{
   _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, non-normalized storage:

(Embed the address data directly into the patron document)

{
   _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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