MongoDB : How to insert a document in mongoDB without using the "insert" method ?

Question

Query description: I have a collection name student_db and added a document in a collection with entries (name: "alok, age : 31 and profession: "xyz"). After inserting the document into student_db database, I want to add another (key:value ) pair i.e. salary: 50000.

Can someone help me out to resolve this problem ?

Answer 1

It is very simple to insert a document into a collection without using the insert method.

Take a variable by using the command var data = { } ** and assign multiples of (key:value) pairs to store data within it in such a way.
**data.name = "alok"
data.age = 27
data.email_id = "xyz@gmail.com"

Use the method "save" to insert or update the existing document in a collection. Here I assumed database name is "db", collection name is "employee".
Now issue following command
db.employee.save(data)

The command used above is used in place of insert method.

Comments

pair should be in json form like
{"data.name":"alok",
   "data.age":27,
   "data.email_id":"xyz@gmail.com"}