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Creating hierarchical JSON in MongoDB?
Use the following syntax to create hierarchical JSON in MongoDB −
db.demo716.insertOne(
{
yourFieldName1,
yourFieldName2,
.
.
N,
"fieldName": {
yourFieldName1,
yourFieldName2,
.
.
N,
"fieldname":
[
{
yourFieldName1,
yourFieldName2,
.
.
N
}
]
}
}
);Let us create a collection with documents −
> db.demo716.insertOne(
... {
... "id": 101,
... "UserEmailId": "John@gmail.com",
... "UserPassword": "123456",
... "UserInformation": {
... "UserName": "Chris",
... "UserAge": 26,
... "UserCountryName": "US",
... "OtherInformation":
... [
... {
... "TeacherName":"Robert",
... "SubjectName":"MongoDB",
... "CollegeName":"MIT"
... }
... ]
... }
... }
... );
{
"acknowledged" : true,
"insertedId" : ObjectId("5ea9b1ff85324c2c98cc4c2f")
}Display all documents from a collection with the help of find() method −
> db.demo716.find().pretty();
This will produce the following output −
{
"_id" : ObjectId("5ea9b1ff85324c2c98cc4c2f"),
"id" : 101,
"UserEmailId" : "John@gmail.com",
"UserPassword" : "123456",
"UserInformation" : {
"UserName" : "Chris",
"UserAge" : 26,
"UserCountryName" : "US",
"OtherInformation" : [
{
"TeacherName" : "Robert",
"SubjectName" : "MongoDB",
"CollegeName" : "MIT"
}
]
}
}
Updated on: 14-May-2020
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