Select

These examples will work with data from Inserting documents.

Prettify output to make it at least readable

.pretty()

Select all

> db.collection.find().pretty()

select and filter

Equals

> db.bands.find({active: true}).pretty()

Comparison: greater than (>), less than (<) — gte, lte also works

> db.bands.find({year_started: {$gt: 1980}}).pretty()
> db.bands.find({year_started: {$lt: 1980}}).pretty()

And

> db.bands.find({active: true, year_started: {$gte: 1970}}).pretty()

Or

> db.bands.find( {$or: [ {active: true}, {year_started: {$gte: 1970}} ] }).pretty()