mukesh-kk / mongo_cli

Mongo_CLI

First Connect to Db using shell

• To see all the dbs

show dbs

• Switch to a db(go in db)

use  <database_name> 

• See collections inside a db

show collections

• Query Data in Collections of a DB

db.<collection_name>.find(<query>)

CRUD

• Insert (Create)

db.<collection_name>.insertOne({ field1: "value1", field2: "value2" })

db.<collection_name>.insertMany([
    { field1: "value1", field2: "value2" },
    { field1: "value3", field2: "value4" }
])

• Read( Query)

db.<collection_name>.find(<query>)

db.<collection_name>.findOne(<query>, ?<projection>)

• Update

db.<collection_name>.updateOne(
    { field1: "value1" },
    { $set: { field2: "new_value" } }
)

db.<collection_name>.updateMany(
    { field1: "value1" },
    { $set: { field2: "new_value" } }
)

• Delete

db.<collection_name>.deleteOne({ field1: "value1" })

db.<collection_name>.deleteMany({ field1: "value1" })