I'm trying to insert the TWDS1E1.json file into mongodb through the command prompt:
db.collections.insert( TWDS1E1.json )
But getting the error:
TWDS1E1.json is not defined.
Mongo is not my thing, what am I doing wrong here?
In command prompt whose directory path is the path where mongoimport.exe is available type the commands
For normal JSON
mongoimport -d test -c docs --file example2.json
For array type JSON
mongoimport --jsonArray -d test -c docs --file example2.json
Please see docs for more information
You cannot use the collection.insert() command to insert a file.
insert() is used to insert actual objects, e.g.
db.myCollection.insert({"name":"buzz"});
To bulk load a JSON file, use mongoimport
Related
Using mongodb and am trying to get a specific value from a collection in the db. I am able to get the complete export using
mongoexport --db database --collection name
But the output is a large file and I am trying to get a specific set of key/pair in it.
ex: "Name": "Value"
there are several names and I just need to print all the names in the collection.
What would be the command syntax from a UNIX shell ?
I looked at this but that is from with in the mongo shell.
thanks
To request all fields from collection yourCollection in MyDatabase :
mongo --quiet 127.0.0.1/MyDatabase --eval 'printjson(db.yourCollection.find().toArray());'
To request only fields name field from collection yourCollection in MyDatabase :
mongo --quiet 127.0.0.1/MyDatabase --eval 'printjson(db.yourCollection.find({},{"_id":0,"name":1}).toArray());'
You could also have a script to execute and save you the time of manually writing in those commands. Execute something like
mongo localhost:27017/test myfile.js
and in the javascript file input
db.name.findOne()
db.name().find({},{"_id":0,"Name":1}).toArray());
please see https://docs.mongodb.com/manual/tutorial/write-scripts-for-the-mongo-shell/ and [How to execute mongo commands through shell scripts?
If your goal is to export documents matching a specific condition from the database, you can pass a query to mongoexport using the -q parameter. For example:
mongoexport -d db -c coll -q '{"Name":"Value"}'
This will export all documents containing the field "Name" having the value "Value".
You can also pass the --quiet parameter to mongoexport if you prefer to have the output without any informative content, such as number of exported documents.
Please see https://docs.mongodb.com/manual/reference/program/mongoexport/ for more information regarding the mongoexport tool.
I am following the example given on MongoDB's website here, but I am running into trouble when trying to import sample data.
When running the command
mongoimport --db test --collection restaurants --drop --file primer-dataset.json
I get the error:
Failed: open primer-dataset.json: The system cannot find the file specified
The problem is, I am not sure what directory MongoDB expects this file to be in. I tried placing it in data/db, but that did not work. Note that I am only using default settings.
I know this is a somewhat trivial question and I feel stupid for asking it but I can not find documentation on this anywhere. Where is MongoDB expecting import files?
MongoDB expects the file to be in the directory from where you are running the command mongoimport.
If you place your file under data/db then set mongodb path as global environment variable and execute the command from data/db directory.
Additionally if you have security enabled for your mongodb then you need to execute command as below
mongoimport --username admin --password password --db test --collection restaurants --drop --file primer-dataset.json
here admin is the user authorized to perform db operations for test database and restaurants is the collection name.
For Windows!
Save file using notepad++ in .json format at MongoDB/bin where mongoimport command is present.
Simple notepad has trouble doing it.
It happened to me as well. The issue was that though the file was visible as restaurants.json actually the file was restaurants.json.json (since saved in JSON format). The issue was resolved after properly changing the name.
i have trouble like you, check you path to file, mongoimport.exe and your file may be stay in another folders.
use mongoimport -d test1 -c restaraunts companies.json for import to mongodb.
Check the filename extension, and make sure it's a ".json" file;
After this I successfully run the
mongoimport --db test --collection restaurants --drop --file [path\to\Json file]
command;
In my case, I removed the --drop parameter and it worked perfectly. I guess, it is throwing this error:
Failed: open paht/file-name.json: The system cannot find the file specified.
because the collection it wants to drop is not available, because I have not created any before.
you must copy your json file into C:\Windows\System32 and write this command on cmd:
mongoimport --db test --collection mongotest --type json --file yournamefile.json
I am having trouble importing a CSV to a MongoDB instance deployed on a server. I was able to use mongoimport to load data to a local instance using the following
mongoimport -d Josh -c diagnosis -- type csv --file\\location\name.csv --headerlin -- ignoreblanks
I have tried to load data to Mongo located on a server through cmd:
C:\Program Files\MongoDB 2.6 Standard\bin>mongoimport --host xxx.xx.x.xxx --db Josh -c diagnosis -- type csv --file\\location\name.csv -- headerline --ignoreblanks
but I get the following error
"Error Parsing Command Line: too many positional options"
What does “too many positional options” mean when doing a mongoexport?
One posting says it is because of black fields in the CSV, however, the --ignoreblanks should take care of blank fields, as it worked on the local instance.
Please add space after --file and no space before type
C:\Program Files\MongoDB 2.6 Standard\bin>mongoimport --host xxx.xx.x.xxx --db Josh -c diagnosis --type csv --file location\name.csv -- headerline --ignoreblanks
I have a csv file containing following data and want to import it in mongodb
ID;"AdmissionID";"SeatNo";"RegistrationNo";"ResultDate";"ResultStatusId"
1;12;"2323";"23";07-05-2013;1
2;23;"35";"32";10-05-2013;5
this data is to be imported to mongodb 2.2. I'm using following command:
mongoimport -d test -c exam --type csv --headerline <f:\exam.csv
when used i get following error
SyntaxError: missing ; before statement (shell):1
please help me to find out the error
This should do the trick easily. More HERE.
mongoimport -d mydb -c collectionName --type csv --file myfile.csv --headerline
Your problem is the <f:\exam.csv bit, which is not properly escaped by the way it looks
> --headerline
> If using “--type csv” or “--type tsv,” use the first line as field names. Otherwise, mongoimport will import the first line as a distinct
> document.
Please try this line of code
C:\Program Files\MongoDB\Server\3.2\bin>mongoimport -d pravin -c FOC --type csv
--file D:\Script\ImportData\FOC.csv --headerline
2016-08-10T15:42:38.685+0530 connected to: localhost`enter code here`
2016-08-10T15:42:38.758+0530 imported 13 documents
I solved by opening the .csv file in Excel (File -> Options -> advanced) then unchecking the box "uses system separation" and then removing the comma from the box below and then saving again in .csv.
So there will not be any commas in the .csv file and the formatting of JSON in MongoDB will be right.
Run mongoimport from the system command line, not the mongo shell.
Ref - https://docs.mongodb.com/manual/reference/program/mongoimport/
I'm trying to do a bulk update with the following
mongoimport -d my_db -c db_collection -upsertFields email ~/Desktop/update_list.csv
the csv that i'm trying to import looks like this.
email, full_name
stack#overflow.com,stackoverflow
mongo#db.com,mongodb
It should check the email column as a query arg and update the full name accordingly. However, none were imported, it encountered errors.
exception:Failure parsing JSON string near: abc#sa
abc#sasa.com,abc
imported 0 objects
encountered 99398 errors
Where is the problem? How should i be doing it?
Your mongoimport command is missing the --upsert option, which is needed in combination with --upsertFields. Try:
mongoimport -d my_db -c db_collection --upsert --upsertFields email ~/Desktop/update_list.csv
Add --type csv
Otherwise it assumes your input is json.
Also, looks like you should pass --headerline to make it use the first line of the file as a header.
I assume that the data inside your CSV file must be double-quoted.