use db_College
db.Students.insertOne({
  "id":1,
  "name":"Divyanshi",
  "dept":"Data Analytics"
})
show collections
db.Students.find({}).pretty()

db.Students.insertMany([
  {"id":2,"name":"Poornima","dept":"Economics"}
  {"id":3,"name":"Karun","dept":"Data Analytics"}
  {"id":4,"name":"Prathika","dept":"Economics"}
  {"id":5,"name":"Varshith","dept":"Data Analytics"}
  ])
  
db.Students.find({"dept":"Data Analytics"})
db.Students.count()

db.Students.update({"id":4},{$set:{"dept":"Data Analytics"}})
db.Students.find({"dept":"Data Analytics"})