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0 MongoDB: Insert Multiple Documents
1. Insert Multiple Document Using: insert() function (deprecated)
The db.<collection>.insert() method inserts one document or an array of documents into a collection
The following inserts a single document. It’s the same as the insertOne() method.
Example: insert() Copy
db.employees.insert({
firstName: "John",
lastName: "King",
email: "john.king@abc.com"
})
Output
{
acknowledged: true,
insertedIds: { '0': ObjectId("616d62d9a861820797edd9b2") }
}
The following inserts multiple documents into a collection by passing an array of documents.
Example: Insert a Document
db.employees.insert(
[
{
firstName: "John",
lastName: "King",
email: "john.king@abc.com"
},
{
firstName: "Sachin",
lastName: "T",
email: "sachin.t@abc.com"
},
{
firstName: "James",
lastName: "Bond",
email: "jamesb@abc.com"
}
])
Output
{
acknowledged: true,
insertedIds: {
'0': ObjectId("616d63eda861820797edd9b3"),
'1': ObjectId("616d63eda861820797edd9b4"),
'2': ObjectId("616d63eda861820797edd9b5")
}
}
You can specify a different _id field value into one or more documents, as shown below.
Example: Insert a Document
db.employees.insert(
[
{
firstName: "John",
lastName: "King",
email: "john.king@abc.com"
},
{
_id:1,
firstName: "Sachin",
lastName: "T",
email: "sachin.t@abc.com"
},
{
firstName: "James",
lastName: "Bond",
email: "jamesb@abc.com"
},
])
Output
{
acknowledged: true,
insertedIds: {
'0': ObjectId("616d63eda861820797edd9b3"),
'1': 1,
'2': ObjectId("616d63eda861820797edd9b5")
}
}
2. Insert Multiple Document Using: insertMany() function
The db.<collection>.insertMany() inserts multiple documents into a collection. It cannot insert a single document.
The following adds multiple documents using the insertMany() method.
Example: Insert a Document Copy
db.employees.insertMany(
[
{
firstName: "John",
lastName: "King",
email: "john.king@abc.com"
},
{
firstName: "Sachin",
lastName: "T",
email: "sachin.t@abc.com"
},
{
firstName: "James",
lastName: "Bond",
email: "jamesb@abc.com"
},
])
Output
{
acknowledged: true,
insertedIds: {
'0': ObjectId("616d63eda861820797edd9b3"),
'1': ObjectId("616d63eda861820797edd9b4"),
'2': ObjectId("616d63eda861820797edd9b5")
}
}
The following inserts custom _id values.
Example: insertMany() with Custom _id
db.employees.insertMany([
{
_id:1,
firstName: "John",
lastName: "King",
email: "john.king@abc.com",
salary: 5000
},
{
_id:2,
firstName: "Sachin",
lastName: "T",
email: "sachin.t@abc.com",
salary: 8000
},
{
_id:3,
firstName: "James",
lastName: "Bond",
email: "jamesb@abc.com",
salary: 7500
},
{
_id:4,
firstName: "Steve",
lastName: "J",
email: "steve.j@abc.com",
salary: 9000
},
{
_id:5,
firstName: "Kapil",
lastName: "D",
email: "kapil.d@abc.com",
salary: 4500
},
{
_id:6,
firstName: "Amitabh",
lastName: "B",
email: "amitabh.b@abc.com",
salary: 11000
}
])
Output
{
acknowledged: true,
insertedIds: { '0': 1, '1': 2, '2': 3, '3': 4, '4': 5, '5': 6 }
}
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