Shulou(Shulou.com)05/31 Report--

How to connect, add, delete, modify and check operations in MongoDB? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

The details are as follows:

The default database in MongoDB is test. Try the following operations after connecting

Connect

Insert data: students who have used json will not be unfamiliar with this format.

Db.person.insert ({"name": "jack", "age": 22}) db.person.insert ({"name": "Mary", "age": 22})

Check:

Db.person.find ()

Db.person.find ({"name": "jack"})

Modify:

Db.person.update ({"name": "jack"}, {"name": "jack", "age": 38})

Check again:

Db.person.find ({"name": "jack"})

Delete:

Db.person.remove ({"name": "jack"})

Check again:

Db.person.find ()

This is the answer to the question about how to connect, add, delete, change and check the MongoDB. I hope the above content can be of some help to everyone. If you still have a lot of doubts to be solved, you can follow the industry information channel to learn more about it.

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