mongoexport syntax error message - mongodb

I'm working with mongodb 2.4.3 and I cannot get mongoexport to work. The error message I get with each command is:
"JavaScript execution failed: SyntaxError: Unexpected identifier"
At first I thought the problem was with my query parameters, which were long. But find() worked fine with the query so I know that the syntax is ok. I then created a new collection using the query and tried exporting the collection with the following:
mongoexport --db Oct2012 --collection sept8subset --csv --fields "text","created_at","user.screen_name","user.followers_count" --out sept8.csv
mongoexport --db Oct2012 --collection sept8subset --csv --fields text,created_at,user.screen_name,user.followers_count --out sept8.csv
mongoexport -d Oct2012 -c sept8subset --csv --fields text,created_at,user.screen_name -o sept8.csv
mongoexport --db Oct2012 --collection sept8subset --dbpath ~/db (should need dbpath as mongod instance is running)
mongoexport --db OCt2012 -collection sept8subset -o sept8.txt
mongoexport --db Oct2012 --collection sept8subset
In each case, I get "JavaScript execution failed: SyntaxError: Unexpected identifier". Where could that SyntaxError be??
The collection I'm trying to copy has 50,339 objects. In case it is just too big for mongoexport to handle, I took 5 documents out of the collection to make a new collection. I then tried to export them using same command structure as above. I still get the same error message.
Now I'm wondering if the problem is that mongoexport can't work with data involving dates. MongoDB documentation states that I may want to write my own export script using a client driver.
Does anyone have an idea of what my problem is here? Many thanks if you can help out.

I found out that running mongoexport from the mongo client--as I was doing--is incorrect. Mongoexport is executed at the command prompt.

I ran into this too and I solved it executing the command from the path/bin where 'mongoexport' is located.In my case :
my_path: /usr/local/Cellar/mongodb/2.4.4-x86_64/bin
"mongoexport -d book -c shelf"
'mongod' is located one step upper from 'mongoimport' , 'mongoexport', etc...

Related

Syntax error:missing ; before statement #(shell):1:15 [duplicate]

I'm working with mongodb 2.4.3 and I cannot get mongoexport to work. The error message I get with each command is:
"JavaScript execution failed: SyntaxError: Unexpected identifier"
At first I thought the problem was with my query parameters, which were long. But find() worked fine with the query so I know that the syntax is ok. I then created a new collection using the query and tried exporting the collection with the following:
mongoexport --db Oct2012 --collection sept8subset --csv --fields "text","created_at","user.screen_name","user.followers_count" --out sept8.csv
mongoexport --db Oct2012 --collection sept8subset --csv --fields text,created_at,user.screen_name,user.followers_count --out sept8.csv
mongoexport -d Oct2012 -c sept8subset --csv --fields text,created_at,user.screen_name -o sept8.csv
mongoexport --db Oct2012 --collection sept8subset --dbpath ~/db (should need dbpath as mongod instance is running)
mongoexport --db OCt2012 -collection sept8subset -o sept8.txt
mongoexport --db Oct2012 --collection sept8subset
In each case, I get "JavaScript execution failed: SyntaxError: Unexpected identifier". Where could that SyntaxError be??
The collection I'm trying to copy has 50,339 objects. In case it is just too big for mongoexport to handle, I took 5 documents out of the collection to make a new collection. I then tried to export them using same command structure as above. I still get the same error message.
Now I'm wondering if the problem is that mongoexport can't work with data involving dates. MongoDB documentation states that I may want to write my own export script using a client driver.
Does anyone have an idea of what my problem is here? Many thanks if you can help out.
I found out that running mongoexport from the mongo client--as I was doing--is incorrect. Mongoexport is executed at the command prompt.
I ran into this too and I solved it executing the command from the path/bin where 'mongoexport' is located.In my case :
my_path: /usr/local/Cellar/mongodb/2.4.4-x86_64/bin
"mongoexport -d book -c shelf"
'mongod' is located one step upper from 'mongoimport' , 'mongoexport', etc...

can not find unexpected undentifier in mongo db export query

I am writing this query in mongo shell
mongoexport --db database_name --collection collection_name --out filename.json
query to export but the error is
SyntaxError: unexpected identifier
can anybody help me ?
Mongoexport is a terminal command line utility to export data, not mongoshell functional directive.
Try running the same in terminal.
$ mongoexport --db database_name --collection collection_name --out filename.json
Make sure you have all the utilities that come with mongo added to your path.

How to export a collection from mongo using terminal

I want to export the whole data from one of my collections in mongodb to a csv file.
This is how my db looks like:
"Tags",
"checkouts",
"imports",
"products"
I am trying to export "checkouts".
I am connected to the db through the terminal and I tried the following commands:
mongoexport --db nameofdatabase --collection checkouts --out coll.json
mongoexport --db nameofdatabase --collection checkouts --type=csv --fields --out /opt/backups/contacts.csv
The error message I get after running both commands command is : "Unexpected identifier"
MongoExport cannot be used in the mongo shell. It is a terminal command like mongo.

mongoexport not working if you add query of selection

If you want to export any collections of any of your mongodb database, you can use mongoexport command. For example:
mongoexport --db dbname --collection collectionName --query '{"fields":1}' --out output.json
However, if you add any of selection criteria to the query, mongoexport command doesn't work. For example, if you run the following command:
mongoexport --db dbname --collection collectionName --query '{},{"fields":0}' --out output.json
the resultant JSON file includes data of every field, despite me excluding a filed named fields.
So why does this such strange behavior occur? And how can I fix it?
For your information, db.colName.find({},{"fields":0}) in mongoDB shell works as usual.
I'm on MongoDB 2.4.3 and OS X 10.9.
Thanks.
That's because --query argument takes only query and there is no option to pass projection. See mongoexport --query in official documentation. If you want to use a projection you have to add --fields option

Getting an assertion error in mongoexport command in Mongodb.

I am getting an error after executing this command:
mongoexport --db records --collection source_list --csv --out C:\bcopy.csv
record is my DB n source_list is my collection
It displays this message:
assertion: 9998 you need to specify fields
I also tried to specify fields but it is giving me the same error.
What changes should i make in the command to get a backup of my collection or is there any other way to do so ?
Here's sample command that specifies fields to export:
mongoexport -h 127.0.0.1 --port 27018 --db mydb --collection system.profile --csv --out profile.csv --fields ns,millis,numYield,nscanned
In my case --headerline helped. I had around 60 columns, enumerating them with -f would be quite cumbersome.
--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.
Seems like you should be using -f paramater to choose the fields that will be exported to csv file. There is a bug reported for this case to change the explanation as the error message is not informative enough.
https://jira.mongodb.org/browse/SERVER-4224