如何使用 mongoimport 导入 csv

Question

Trying to import a CSV with contact information:

Name,Address,City,State,ZIP  
Jane Doe,123 Main St,Whereverville,CA,90210  
John Doe,555 Broadway Ave,New York,NY,10010 

Running this doesn't seem to add any documents to the database:

$ mongoimport -d mydb -c things --type csv --file locations.csv --headerline

Trace says imported 1 objects , but firing up the Mongo shell and running db.things.find() doesn't show any new documents.

What am I missing?

Answer 1

Your example worked for me with MongoDB 1.6.3 and 1.7.3. Example below was for 1.7.3. Are you using an older version of MongoDB?

$ cat > locations.csv
Name,Address,City,State,ZIP
Jane Doe,123 Main St,Whereverville,CA,90210
John Doe,555 Broadway Ave,New York,NY,10010
 ctrl-d
$ mongoimport -d mydb -c things --type csv --file locations.csv --headerline
connected to: 127.0.0.1
imported 3 objects
$ mongo
MongoDB shell version: 1.7.3
connecting to: test
> use mydb
switched to db mydb
> db.things.find()
{ "_id" : ObjectId("4d32a36ed63d057130c08fca"), "Name" : "Jane Doe", "Address" : "123 Main St", "City" : "Whereverville", "State" : "CA", "ZIP" : 90210 }
{ "_id" : ObjectId("4d32a36ed63d057130c08fcb"), "Name" : "John Doe", "Address" : "555 Broadway Ave", "City" : "New York", "State" : "NY", "ZIP" : 10010 }

Answer 2

I was perplexed with a similar problem where mongoimport did not give me an error but would report importing 0 records. I had saved my file that didn't work using the OSX Excel for Mac 2011 version using the default "Save as.." "xls as csv" without specifying "Windows Comma Separated(.csv)" format specifically. After researching this site and trying the "Save As again using "Windows Comma Separated (.csv)" format, mongoimport worked fine. I think mongoimport expects a newline character on each line and the default Mac Excel 2011 csv export didn't provide that character at the end of each line.

Answer 3

We need to execute the following command:

mongoimport --host=127.0.0.1 -d database_name -c collection_name --type csv --file csv_location --headerline

-d is database name

-c is collection name

--headerline If using --type csv or --type tsv, uses the first line as field names. Otherwise, mongoimport will import the first line as a distinct document.

For more information: mongoimport

Answer 4

you will most likely need to authenticate if you're working in production sort of environments. You can use something like this to authenticate against the correct database with appropriate credentials.

mongoimport -d db_name -c collection_name --type csv --file filename.csv --headerline --host hostname:portnumber --authenticationDatabase admin --username 'iamauser' --password 'pwd123'

Answer 5

检查文件末尾是否有空行，否则在某些版本的 mongoimport 中最后一行将被忽略

Answer 6

I use this on mongoimport shell

mongoimport --db db_name --collection collection_name --type csv --file C:\\Your_file_path\target_file.csv --headerline

type can choose csv/tsv/json But only csv/tsv can use --headerline

You can read more on the offical doc .

Answer 7

Robert Stewart have already answered for how to import with mongoimport.

I am suggesting easy way to import CSV elegantly with 3T MongoChef Tool (3.2+ version). Might help someone in future.

1. You just need to select collection
2. Select file to import
3. You can also unselect data which is going to import. Also many options are there.
4. Collection imported

See how to import video

Answer 8

First you should come out of the mongo shell and then execute the mongoimport command like this:

Manojs-MacBook-Air:bin Aditya$ mongoimport -d marketdata -c minibars 
--type csv 
--headerline
--file '/Users/Aditya/Downloads/mstf.csv'

2017-05-13T20:00:41.989+0800    connected to: localhost
2017-05-13T20:00:44.123+0800    imported 97609 documents
Manojs-MacBook-Air:bin Aditya$

Answer 9

Robert Stewart's answers is great.

I'd like to add that you also can type your fields with --columHaveTypes and --fields like this :

mongoimport -d myDb -c myCollection --type csv --file myCsv.csv 
  --columnsHaveTypes --fields "label.string(),code.string(),aBoolean.boolean()"

(Careful to not have any space after the comma between your fields)

For other types, see doc here : https://docs.mongodb.com/manual/reference/program/mongoimport/#cmdoption-mongoimport-columnshavetypes

Answer 10

For the 3.4 version, please use the following syntax:

mongoimport -u "username" -p "password" -d "test" -c "collections" --type csv --file myCsv.csv --headerline

After 3 days, I finally made it on my own. Thanks to all the users who supported me.

Answer 11

My requirement was to import the .csv (with no headline) to remote MongoDB instance. For mongoimport v3.0.7 below command worked for me:

mongoimport -h <host>:<port> -u <db-user> -p <db-password>  -d <database-name> -c <collection-name> --file <csv file location> --fields <name of the columns(comma seperated) in csv> --type csv

For example:

mongoimport -h 1234.mlab.com:61486 -u arpitaggarwal -p password  -d my-database -c employees --file employees.csv --fields name,email --type csv

Below is the screenshot of how it looks like after import:

where name and email are the columns in the .csv file.

Answer 12

Given .csv file I have which has only one column with no Header , below command worked for me:

mongoimport -h <mongodb-host>:<mongodb-port> -u <username> -p <password> -d <mongodb-database-name> -c <collection-name> --file file.csv --fields <field-name> --type csv

where field-name refers to the Header name of the column in .csv file.

Answer 13

When I was trying to import the CSV file, I was getting an error. What I have done. First I changed the header line's column names in Capital letter and removed "-" and added "_" if needed. Then Typed below command for importing CSV into mongo

$ mongoimport --db=database_name --collection=collection_name --type=csv --file=file_name.csv --headerline  

Answer 14

C:\\wamp\\mongodb\\bin>mongoexport --db proj_mmm --collection 产品 --csv --fieldFile 产品_fields.txt --out 产品.csv

Answer 15

使用：

mongoimport -d 'database_name' -c 'collection_name' --type csv --headerline --file filepath/file_name.csv

Answer 16

mongoimport -d test -c test --type csv --file SampleCSVFile_119kb.csv --headerline

check collection data:-

 var collections = db.getCollectionNames(); for(var i = 0; i< collections.length; i++) { print('Collection: ' + collections[i]); // print the name of each collection db.getCollection(collections[i]).find().forEach(printjson); //and then print the json of each of its elements }

Answer 17

1]We can save xsl as .csv file
2] Got to MongoDB bin pathon cmd - > cd D:\Arkay\soft\MongoDB\bin
3] Run below command
> mongoimport.exe -d dbname -c collectionname --type csv --file "D:\Arkay\test.csv" --headerline
4] Verify on Mongo side using below coomand.
>db.collectioname.find().pretty().limit(1)

Answer 18

奇怪的是没有人提到--uri标志：

mongoimport --uri connectionString -c questions --type csv --file questions.csv --headerline 

Answer 19

Sharing for future readers:

In our case, we needed to add the host parameter to make it work

mongoimport -h mongodb://someMongoDBhostUrl:somePORTrunningMongoDB/someDB -d someDB -c someCollection -u someUserName -p somePassword --file someCSVFile.csv --type csv --headerline --host=127.0.0.1

Answer 20

确保将 .csv 文件复制到 /usr/local/bin 或您的 mondodb 所在的任何文件夹

Answer 21

All these answers above are great. And the way to go on a full featured application.

But if you want to prototype fast , want flexibility as the collection still changes as well as to minimize your early code base , there is a much simpler way that is not much discussed.

You can basically forego mongoimport by now. I could have saved 3 hours if it was mentioned here on this question. So let me share for others:

Mongodb has a GUI called Mongo Compass has both csv and json import features out of the box in a matter of clicks. It is an official part of the Mongo ecosytem. At the time of writing it is free and it works very well for my use case. https://www.mongodb.com/products/compass

1. You simply get MongoDB compass running on your machine by following the simple installation. A couple of fields for DB connection and authentication directly in the GUI.
2. Import the csv/json file. It took less than a second on a 30KB file to be parsed before user (me) validates.
3. Validate the "type" of each property. Great feature, I could directly mention the property types such as booleans, integers, etc. In my experience, they seem all default to string. You can update before importing. Dates were more finicky and needed special attention on the coding side.
4. One click further the csv is a collection in your mongo db local or on the cloud . Voila!

Answer 22

If you have multiple files and you want to import all of them using python, you can do the following.

import os
import subprocess

# directory of files
dir_files = 'C:\data'
# create list of all files
_, _, fns = next(os.walk(dir_files))
files = [os.path.join(dir_files, fn) for fn in fns]
# mongotool address
mongotool = r'C:\Program Files\MongoDB\Server\4.4\bin\mongoimport.exe'
# name of mongodb database
mydatabase = 'mydatabase'
# name of mongodb collection
mycollection = 'mycollection'
# import all files to mongodb
for fl in files:
    commands =[mongotool, '--db', mydatabase,
               '--collection', mycollection,
               '--file', fl,
               '--type', 'tsv',
               '--headerline']
    subprocess.Popen(commands, shell=True)

Answer 23

Just use this after executing mongoimport

It will return number of objects imported

use db
db.collectionname.find().count()

will return the number of objects.