Import Example Dataset

Overview

The examples in this guide use the restaurants collection in the test database.

The following is a sample document in the restaurants collection:

{
  "address": {
     "building": "1007",
     "coord": [ -73.856077, 40.848447 ],
     "street": "Morris Park Ave",
     "zipcode": "10462"
  },
  "borough": "Bronx",
  "cuisine": "Bakery",
  "grades": [
     { "date": { "$date": 1393804800000 }, "grade": "A", "score": 2 },
     { "date": { "$date": 1378857600000 }, "grade": "A", "score": 6 },
     { "date": { "$date": 1358985600000 }, "grade": "A", "score": 10 },
     { "date": { "$date": 1322006400000 }, "grade": "A", "score": 9 },
     { "date": { "$date": 1299715200000 }, "grade": "B", "score": 14 }
  ],
  "name": "Morris Park Bake Shop",
  "restaurant_id": "30075445"
}      

Use the following procedure to populate the restaurants collection.            populate vt. 居住于；構成人口；移民于；殖民于

Prerequisites

You must have a running mongod instance in order to import data into the database.

Procedure

Retrieve the restaurants data.

Retrieve the dataset from https://raw.githubusercontent.com/mongodb/docs-assets/primer-dataset/primer-dataset.json and save to a file named primer-dataset.json.

複制連結，直接放到迅雷裡面下載下傳

Import data into the collection.

In the system shell or command prompt, use mongoimport to insert the documents into the restaurants collection in the test database.

If the collection already exists in the test database, the operation will drop the restaurants collection first.

mongoimport --db test --collection restaurants --drop --file ~/downloads/primer-dataset.json      

The mongoimport connects to a mongod instance running on localhost on port number 27017.

The--file option provides the path to the data to import, in this case, ~/downloads/primer-dataset.json.

To import data into a mongod instance running on a different host or port, specify the hostname or port by including the --host and the --port options in your mongoimport command.