MongoDB installation and simple use

Install
1. Create a mongodb folder

Create a new mongodb folder, and create a data folder for mongodb as a database

2. Install mongodb

Unlike installing SQL, install mongodb by executing the cmd command.

Run the cmd command

A. Find the bin in the file directory.

B. Deploy it using an engine in the binfile

Dbpath is the address of our mongodb database.

The installation is successful.

Default 27017 Port

Enter localhost: 27017 in the browser.

You are trying to access MongoDB on the native driver port. For http diagnostic access, add 1000 to the port number

We can see that this statement proves that mongodb is successfully installed.

3. Set window environment variables

The path of the execution file in the extracted binfile is directly placed in the environment variable, so that we can directly access all the programs through cmd.

 

4. bat file

Start mongodb Service

 

My batch files: http://pan.baidu.com/s/1i3ql7bZ

Easy to use

1. Create a database

Use [databaseName]

This is only a database cache pool. If you leave this empty database, it will be deleted.

2. view all databases

Show dbs

3. Add a set to the specified database and add records

4. view all documents in the database

Show collections

5. Update document data

Db. person. update ({name: "clm" },{ $ set: {name: "czs "}})

 

6. delete a set in the database

Db. [document]. drop ()

7. delete a database

Db. dropdatabase

8. help displays all database operations
9. Database and set command specifications

10. mongoDB's shell built-in js engine can directly execute j code

Summary

The above is a rough understanding of mongodb, and you need to contact the specific instance for specific use.