MongoDB's common operations with databases (DB)

1. View all libraries

Show DBS

2. Switch database/New database

 Use MyDB

3. View current Library

Db

It is important to note that the <use new library > This command does not immediately create a real entity library, but only when the data is inserted inside the library.

4. Delete Database

Db.dropdatabase ()

Although the database is deleted newdb, the current context is still newdb, so the library will be created automatically if the command is executed with the new data in the Chitian window.

MongoDB's common operations with databases (DB)