Shulou(Shulou.com)06/01 Report--

1. Create a database: use report

Delete database: use report, db.dropDatabase ()

two。 View the database: show dbs

3. View table: show collections

Delete table: use report, db.auths.drop ()

4. Add database user: db.addUser ("report", "report")

5. User authentication: use report, db.auth ("report", "report") authentication successfully returned 1.

6. Create a table: db.createCollection ("mails")

7. Common operations find,insert, update, remove.

Db.users.count () = > count the number of queries

Db.insert ({"name": "aaa", "passwd": "bbb"})

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