MongoCodes.txt

use proHiker //for create or switch db
db.hikes.insertOne({name: "Narangala", price: 1200, rating: 4.6}) //insert a single record
db.hikes.find() //find records
show dbs // all db
show collections //all collection
db.hikes.insertMany([{name: "Hanthana", price: 1500, rating: 4.9}, {name: "Bambaragala", price: 2500, rating: 4.3}])
db.hikes.find({name: "Hanthana"})

db.hikes.find({price: {$lte: 1500}}) //less than and equal
db.hikes.find({price: {$lte: 1500}, rating: {$gt: 4.8}}) //and
db.hikes.find({$or: [{price: {$lte: 1500}, rating: {$gt: 4.8}}]}) //or
db.hikes.find({$or: [{price: {$lte: 1500}, rating: {$gt: 4.8}}]}, {name: "Hanthana"}) //or with and

db.hikes.updateOne({name: "Narangala"}, {$set: {price: 3000}}) //update a single record
db.hikes.updateMany({price: {$gte: 2000}}, {$set: {premium: true}}) //update a multiple record

db.hikes.deleteMany({price: {$gte: 3000}}) //delete a multiple record
db.hikes.deleteMany({}) //delete all