mongoexport

I have 2 collections: list1 and list2. list1 have some fields and list2 have another fields, including the id referring to list1. I need to do a query to export all items on list1 that have at least one item referring to him on list2. How can I do this? It's something like a join from list1 to list2. I need to run a mongoexport command to generate a csv file. The way I do this is to create a short javascript program that will transfer the data you want to export into a new temporary collection, which you can then export. For example, create a file export.js: //initialise the export results

I am exporting data from one database and importing data to another database. When I export the data its on a machine with mongo 2.6 but when I import the data its on a VM using mongo 2.4. Both mongod instances are running 2.4. I keep getting this error: Wed Jun 4 13:13:32.604 check 0 0 Wed Jun 4 13:13:32.604 imported 0 objects Wed Jun 4 13:13:32.604 ERROR: encountered 1 error(s) failed: [192.168.140.30] => (item=collection) => {"changed": true, "cmd": "mongoimport -u username -p password -d db -c collection --drop --jsonArray /tmp/collection.json ", "delta": "0:00:00.026383", "end": "2014-06

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Am trying to run a mongoexport using a remote connection by filtering on date ranges. A very simple query, however, I am running into positional errors issue. I;ve read through most of the posts regarding it, did the epoch conversion etc. But completely hit a block. Hopefully someone here can figure out what I am doing wrong. Below is my command and the error message: C:\ mongoexport --host 1.1.1.111:1111 --db IQ -u user -p password --collection CallLog --out calllog.json --query '{"Call.StartTime":{"$gte":new Date(1411066005000),"$lte": new

需要注意的地方： 1，不需要进入mongo命令行之后，就可以直接使用上面的2个导入导出命令。 2，导入导出的json文件，你不要随意换行，导出来的就是一行一条数据，你就原封不动的给修改完直接保存，不要换行。不要使用txt这么low的编辑器啦，换个高级点的编辑器吧。 更多内容请致官方地址：https://docs.mongodb.com/v2.2/reference/mongoexport/ 导出：mongoexport 1、语法： mongoexport -d dbname -c collectionname -o file --type json/csv -f field 参数说明： 2、示例： sudo mongoexport -d mongotest -c users -o /home/python/Desktop/mongoDB/users.json --type json -f "_id,user_id,user_name,age,status" 导入：mongoimport 1、语法： mongoimport - d dbname - c collectionname - - file filename - - headerline - - type json/csv - f field 参数说明： 2、示例： sudo mongoimport -d mongotest

I want to save the result from an aggregation into a csv file. Using the mongo cmd line tool I can do this to get the results I want: db.compras.aggregate({ $group : { _id : "$data.proponente", total : { $sum : "$price" } }} How would I translate this into a mongoexport command that saves results into a csv? You can't run aggregate() queries through mongoexport . The mongoexport tool is intended for more basic data export with a query filter rather than full aggregation and data processing. You could easily write a short script using your favourite language driver for MongoDB, though. Slightly

I want to extract the timestamp from my ObjectID with a json query, as I would like to use mongodump but only dump data between certain dates. I dont wanna put my timestamps somewhere else than the ObjectID as I need the database to be as small as possible. Is there a way to to exstract the timestamp from ObjectID with a simple json query that mongodump accepts? You can do this fairly simply, at doc page Mongo Extended JSON (which is quite well hidden) you can find a table describing how to represent mongo extended datatypes in JSON. As you probably know, the first 4 bytes of ObjectId

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

MongoDB 数据导入导出问题 一、Mongodb导出工具mongoexport mongoexport具体用法 mongoimport具体用法 导出数据命令： 主意 一、Mongodb导出工具mongoexport Mongodb中的mongoexport工具可以把一个collection导出成JSON格式或CSV格式的文件。可以通过参数指定导出的数据项，也可以根据指定的条件导出数据。 mongoexport具体用法 1、导出数据命令： mongoexport -h [host] --port [port] --u [username] --password [password] --authenticationDatabase admin -d [databsename] -c [collectionname] -o [outputfilename] -q {query} 参数说明： 　　　　-h : host名 　　　　--port : mongo运行端口 　　　　-u： mongo用户名 　　　　-p：mongo密码 　　　　-d ：数据库名 　　　　 -c ：collection名 　　　　 -o ：输出的文件名 　　　　 --type ： 输出的格式，默认为json(获取–csv导出csv格式文件) 　　　　 -f ：输出的字段，如果-type为csv，则需要加上-f