Computer scienceFundamentalsSQL and DatabasesDBMSMongoDBData Modeling

Relations between documents

Theory

Nested documents

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Match expressions with the correct number of nested documents inside:

Match the items from left and right columns
{ _id:<ObjectId>
user:"User Name",
primary_adress:
{ city:"New York",
street:"Rockland Street",
house_number: 44,
po: 10031 },
secondary_adress: { city:"New York",
street:"Gainsway Rd. Bronx",
house_number: 8095,
po: 10469 }
}
{ _id:<ObjectId> customer:"Customer Name",
contact: { email:"[email protected]",
phone: 89076544,
address:"7441 Poplar Ave. North Tonawanda, NY 14120" }
}
{ _id:<ObjectId> student_name:"John",
student_surname: "Richards",
department: "IT",
avg_grade: 67 }
Two nested document inside
No nested document inside
One nested document inside
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