Basic CRUD operations in MongoDB-Programmingraja

Basic CRUD operations in MongoDB

> use mydb;

switched to db mydb

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> db.stud.insert({
        rollno:"121",
         name:"Ekta",
        course:"MCA"})

WriteResult({ "nInserted" : 1 })

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> db.stud.find().pretty()

{
        "_id" : ObjectId("618a787d33923f3b67ca5a3e"),
        "rollno" : "121",
        "name" : "Ekta",
        "course" : "MCA"
}

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> db.stud.update(
... {
... "rollno":"121"
... },
... {
... $set:
... {"name":"Ekta Dhoke"}
... })

WriteResult({ "nMatched" : 1, "nUpserted" : 0, "nModified" : 1 })

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> db.stud.remove({"rollno":"121"})

WriteResult({ "nRemoved" : 1 })

-------------------------------------------------------------------------------

> db.stud.find()

>