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Mass insertion in MongoDB
For mass insertion, use the concept of insertMany() in MongoDB. The insertMany() inserts multiple documents into a collection.
Let us create a collection with documents −
> db.demo729.insertMany( [
... { BankName:"HDFC Bank",cardType:"Credit","CustomerName":[{Name:"Chris",Age:25}]},
... { BankName:"ICICI Bank",cardType:"Debit","CustomerName":[{Name:"Bob",Age:22}]},
... { BankName:"Kotak Bank",cardType:"Debit","CustomerName":[{Name:"David",Age:23}]}
... ] );
{
"acknowledged" : true,
"insertedIds" : [
ObjectId("5eac510d56e85a39df5f6333"),
ObjectId("5eac510d56e85a39df5f6334"),
ObjectId("5eac510d56e85a39df5f6335")
]
}Display all documents from a collection with the help of find() method −
> db.demo729.find().pretty();
This will produce the following output −
{
"_id" : ObjectId("5eac510d56e85a39df5f6333"),
"BankName" : "HDFC Bank",
"cardType" : "Credit",
"CustomerName" : [
{
"Name" : "Chris",
"Age" : 25
}
]
}
{
"_id" : ObjectId("5eac510d56e85a39df5f6334"),
"BankName" : "ICICI Bank",
"cardType" : "Debit",
"CustomerName" : [
{
"Name" : "Bob",
"Age" : 22
}
]
}
{
"_id" : ObjectId("5eac510d56e85a39df5f6335"),
"BankName" : "Kotak Bank",
"cardType" : "Debit",
"CustomerName" : [
{
"Name" : "David",
"Age" : 23
}
]
}
Updated on: 15-May-2020
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