Answer Posted / Sah Navneet Kumar Ramsuraj

In Mongoose, you can set a primary key by defining the schema's `_id` field and setting its type to your desired data type. For example, for a user model with an auto-incrementing primary key:
const mongoose = require('mongoose');
const { Schema } = mongoose;
const UserSchema = new Schema({ _id: {type: Number, unique: true, autoIncrement: true}});

what is the command syntax for inserting a document?

6

How to define array in mongoose schema?

2

How did mongodb get its name?

2