MongoDB
I am learning MongoDB trying to understand which tool I should pick for making Global Names about 10 times faster than now. I am going to try Elastic Search, MongoDB, and Hadoop and pick one of them.
This file is going to be my cheatsheet for Mongodb information.
General
db.help()
| helper | JS |
|---|---|
| use dd | db.getSisterDB(“dd”) |
| show dbs | db.getMongo.getDBs() |
| show collections | db.getMongo.getCollectionNames() |
Shell mongo
| action | method |
|---|---|
| drop db | db.dropDatabase() |
| watch long event | db.currentOp() |
Queries
| action | method |
|---|---|
| distinct | db.blog.distinct(“rating”) |