Find or Query Data with the MONGO Shell

https://docs.mongodb.com/getting-started/shell/query/

Overview

You can use the find () method to issue a query to retrieve data from a collection in MongoDB.

All queries in MongoDB has the scope of a single collection.

Queries can return all documents with a collection or only the documents that match a specified filter or criteria.

You can specify the filter or criteria in a document and pass as a parameter to the find () method.

The find () method returns query results in a cursor, which was an iterable object that yields documents.

Prerequisites

The examples in this section is use of the restaurants collection in the test database.

For instructions on populating the collection with the sample dataset, see Import Example DataSet.

The MONGO Shell connected to a running mongod instance and switch to the test database.

Test

Query for all Documents in a Collection

To return all documents in a collection, call the find () method without a criteria document.

For example, the following operation queries for all documents in the restaurants collection.

DB.  Restaurants.  Find()    

The result set contains all documents in the restaurants collection.

If the collection name is a number, then

db["713000007000"].find ()

Find or Query Data with the MONGO Shell