I am trying to export a Collection like this:
C:\Program Files\ConEmu>mongoexport --db test --collection person --out personTest.json
connected to: 127.0.0.1
couldn't open [personTest.json]
It is not working. Any suggestions?
You most likely are doing this from a non-elevated command prompt, and are denied to write in Program Files.
You can:
Supply a full path to a directory where you can write, --out C:\Temp\personTest.json
cd to a directory where you can write and call the executable by full path: C:\Program Files\ConEmu\mongoexport ...
Execute your command from an elevated prompt.
You do not have write permission in this directory.
Change your current location to your home directory or some other directory where you have write permission.e.g My Documents, or Desktop , or user/Andre
You need to do the following things
1.Goto C:\Program Files\MongoDB\Server\3.2\bin or it should be any path other than mongo shell.
2. If you are in this C:\Program Files\MongoDB\Server\3.2\bin path and trying to export collection then you need to run this query mongoexport --db test --collection special --out E:\spec.json . After --out you need to mention path where the exported file needs to store. If you doesn't provide this it will try to store in current directory. In some systems , drive c has root permissions so at this time it will not allow you to store file.For that you need to give paths of other drive's other than this C drive.
3.If you are using other paths it is your wish to set the path for exporting file.You can use mongoexport --db test --collection special --out E:\spec.json. or mongoexport --db test --collection special --out spec.json.
4.Check into the destination path for exported file.
Hope it helps.
Related
So right now I'm using mongoose to work with MongoDB (learning). Something I tried to do was import a JSON array by using
mongoimport --db mongo-testing --collection test --drop --file data.json --jsonArray
but it didn't work giving an error that mongoimport was not found. After looking around in StackOverflow, I found that you needed to run the command in the \bin\ folder where your mongo PATH variable points to. So I did just that.
mongoimport --db mongo-testing --collection test --drop --file /d/Node/mongo-test/data.json --jsonArray
The command above I ran in the \bin\ folder and pointed the file via an absolute path and it worked! However, I don't think that's the right way to do it.
Question: Is there a way I could run the command in /d/Node/mongo-test/ file where my Node.js project is or do I need to go to the bin folder each time
bin folder for mongo
UPDATE: So I tried downloading the zip file instead of the msi. After downloading it, copy it into mongoDB path in ProgramFiles (beside Server is where i put it).
C:\Program Files\MongoDB\mongodb-database-tools-windows-x86_64-100.2.0\bin
Add the above line into ur PATH variables (if you put it in the same spot).
Close all terminals and if you are using VSC terminal, close the program and restart it.
This worked for me! Hope it helps someone too
Is there a way to dump mongo database to a specific folder name?
Lets say I have a db named myDb
When I use:
mongodump --db myDb
It generates a dump folder with a myDb folder inside it
Is it possible to get something like dump/mySpecifiedFolder from mongodump?
You cannot change the name of the myDB folder, since that's named for the database which it contains, but you can change the location of the myDb folder. To do this, use the --out / -o parameter.
From the docs:
--out , -o
Specifies the directory where mongodump will write BSON files for the dumped databases. By default, mongodump saves output files in a directory named dump in the current working directory.
So, this command ...
mongodump --db myDb -o /some/path/
... would cause mongodump to create /some/path/myDb.
In my discovery of doing a mongodump, please note that the default location can be the Desktop when outputting.
Example
"C:\Program Files\MongoDB\Server\3.4\bin\mongodump.exe" --host localhost --port 27017 --db local --out dump/dpusers
On your Desktop, the dump folder will be created with the subfolder "dpusers" and inside that folder is another folder named the same as your database name.
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'm trying to restore a mongodump to a differently named database (which should be possible via --db <dbname> switch).
My working directory contains a single dump folder, which contains a single db dump.
However, when I try this command:
mongorestore --port xxxxx --db some_destination_db
I get the following error:
ERROR: ERROR: root directory must be a dump of a single database
ERROR: when specifying a db name with --db
I have no idea why I'm getting this, and can't find any help on google. Anyone have any ideas?
You need to include the path of the source db dump directory to restore from (as at MongoDB 2.6).
For example, if restoring from "twitter" to "some_destination_db" your command line would be similar to:
mongorestore --port xxxxx --db some_destination_db dump/twitter
May be your destination path contains some subfolders
I have used mongodump to dump my database of mongodb, it created some bson files under dump/mydb
But I don't know how to use them. I tried mongoimport, but seems it can't import bson data. Then how to use these bson files? How to import them to another mongodb?
You need to use mongorestore, not mongoimport ... which is used for things like importing json, or csv, etc.
From the back-up-with-mongodump docs:
mongodump reads data from a MongoDB database and creates high fidelity BSON files which the mongorestore tool can use to populate a MongoDB database.
mongodump and mongorestore are simple and efficient tools for backing
up and restoring small MongoDB deployments, but are not ideal for
capturing backups of larger systems.
You can read more about mongorestore in the docs below; I'd take a look and read up on them as they are very helpful.
http://www.mongodb.org/display/DOCS/Import+Export+Tools#ImportExportTools-mongorestore
You can also check out http://learnmongo.com for tips and help!
I am using mongodump, mongorestore for daily backups and restoring from backup. I have two .bat files:
First, for backup, where you need just specify host database name and backup folder:
SET host=localhost:27020
SET dbNameToDump=MyDB
SET backupsFolder=Backups
mongodump.exe --host %host% --db %dbNameToDump%
SET date="%date:~10,4%-%date:~4,2%-%date:~7,2%.%time:~0,2%-%time:~3,2%"
cd %backupsFolder%
md %date%
xcopy /e ..\dump %date%
rmdir /s /q ..\dump
Above bat file create folder with name like this 2011-03-31.11-17(yyyy-MM-dd.hh-ss) in folder Backups with dumped collections from specified database. In files explorer it looks like so:
Second bat file i use for retore specified dumped files(here you also need specify database name and folder with dumped files):
SET host=localhost:27020
SET dbNameToRestore=MyDB
SET restoreFolder=Restore
mongorestore.exe --host %host% --db %dbNameToRestore% %restoreFolder%
In files explorer:
In additional, i am using windows schedule to automate backup process.
Hope above information will be useful for someone.
As mentioned in the previous answers, you have to use mongorestore instead of mongoimport. Adding to the previous answers, when your mongodb is running, execute the following command to restore your dump from the dump directory,
mongorestore dump
This will import all the collections into your mydb database. However this doesn't drop the database before restoring. If you wish to drop the database before importing,
mongorestore --drop dump
The bson files in the mydb directory will be restored as the collections inside mydb database. For more info on mongorestore check the documentation here.
Use mongorestore. mongoimport works on the output of mongoexport. mongodump & mongorestore work on binary data files while import / export work on json, csv, etc.. (human readable formats)
For resolving this, I copied the dump folder,dbdump(which contains bson files) to bin directory of mongodb and executed the below commands in command prompt:
1.
cd "path to MongoDB's bin folder"
(Example: cd C:\Program Files\MongoDB\Server\3.2\bin)
2.
mongorestore.exe --dir ./directory name --db database-name
(Example: mongorestore --dir ./dbdump --db testdb)
All bson files in the dump folder will be imported into your database.
You can verfiy this by executing the below commands :
cd "path to MongoDB's bin folder"
mongo.exe
show dbs;
For mongo version 3 and above use the command below:
mongorestore --host=localhost --port=27017 --username=root --authenticationDatabase=admin --db=test dump_folder/
Mongo will ask password after that