In this tutorials will teach about mongodb step by step. We have cover about the basic queries insert,update,find,delete,and,or.
View the employee records queries
1 | db.getCollection('employee').find({}) |
Find queries
1 | db.getCollection('employee').find({ name : "John" }) |
And Check both queries correct works
1 | db.getCollection('employee').find({ name : "John" , age : 35 }) |
OR Check either on correct works
1 2 3 | db.getCollection('employee').find( { $or: [ { age: 30}, { name: "John" } ] }) |
Insert queries
1 | db.getCollection('records').insert( { name : "Kishan",age : 24,salary : 45000 }) |
Update queries
1 2 3 | db.getCollection('employee').update( {name : "Kishan"}, { $set: {age:34, salary: 40000}}); |
Delete queries
1 | db.getCollection('employee').remove({ name : "Kishan"}) |
I have attached the video tutorial below it will help you to do this step by step.
