Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged MongoDB
0
votes
1.1k
views
1
answer
mongodb - How to perform Update operations in GridFS (using Java)?
I am using Mongo-Java-Driver 2.13 I stored a PDF file (size 30mb) in GridFS. I am able to ... .setMetaData(newMetadata); outputFile.save(); See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.2k
views
1
answer
mongodb - how to mongoimport data to deployed meteor app?
UPDATE: this post applied to meteor.com free hosting, which has been shutdown and replaced with ... kanjifinderkanjifinder.csv --headerline See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.0k
views
1
answer
mongodb - mongo update query given error
Coll.update(condition, new BasicDBObject("$set", data), true, true)) This is my update query in mongodb for ... some one knows plz reply Thanks See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.4k
views
1
answer
mongodb - Searching in mongo db using mongoose regex vs. text
Can anyone please explain the difference between: db.collection.find({ $text: { $search: "dog cat" } }) and Product ... we go for which one ? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
987
views
1
answer
mongodb - create doc if not exist, else push to array
I have a document in the following form: { "_id" : ObjectId("4d2d8deff4e6c1d71fc29a07"), "user_id" : "714638ba-2e08 ... item. Can that be done? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.5k
views
1
answer
mongodb apply sort to lookup results
If I have a user and post collection {"_id": 1, "name": "User 1"} {"_id": 2, "name": "User ... maintaining other fields (name, post.title, etc) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.2k
views
1
answer
mongodb - Filter array using the $in operator in the $project stage
Right now, it's not possible to use the $in operator in the $filter array aggregation operator. Let's say this ... to get my desired results. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.3k
views
1
answer
mongodb aggregation php
I'm using mongodb 2.1 and how to translate this query into php db.counter.aggregate([ { $match:{ page_id:123456 } ... "$pageview"}} } ]); Thanks See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
958
views
1
answer
mongodb - Removing white spaces (leading and trailing) from string value
I have imported a csv file in mongo using mongoimport and I want to remove leading and trailing white spaces ... leading and trailing spaces. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.8k
views
1
answer
mongodb - Can't get allowDiskUse:True to work with pymongo
I'm running into the aggregation result exceeds maximum document size (16MB) error with mongodb aggregation using pymongo ... 10000}] Thank you See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
961
views
1
answer
mongodb - How to reclaiming deleted space without `db.repairDatabase()`?
I want to shrink data files size by reclaiming deleted space, but I can't run db.repairDatabase(), because free disk space is not enough. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
970
views
1
answer
mongodb - Meteor Up deployment, can't use meteor mongo --url
I've recently deployed my Meteor app to a Digital Ocean droplet running Ubuntu 14.04 x32. I used Meteor Up ... and still keep using Meteor Up. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.5k
views
1
answer
mongodb - Node + Mongoose: Get last inserted ID?
I want to retrieve the last inserted _id, using mongoose as MongoDB wrapper for node.js. I've found the following ... s id Redirect to / Thanks! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.3k
views
1
answer
mongodb - Unable to start docker mongo image on windows
When starting the image I get the following error: 2019-02-27T17:09:41.095+0000 E STORAGE [initandlisten] ... this issue doesn't appear. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.2k
views
1
answer
mongodb TTL not removing documents
I have a simple schema like: { _id: String, // auto generated key: String, // there is a unique index on this ... ("2013-09-09T18:54:28Z") } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.2k
views
1
answer
mongodb - How to filter fields from a mongo document with the official mongo-go-driver
How can I filter fields with the mongo-go-driver. Tried it with findopt.Projection but no success. type fields ... the documents didn't change. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.2k
views
1
answer
mongodb - mongoimport choosing field type
When importing data from file (csv in my case) mongoimport automatically choose data type for each field. Is it ... as a numbers (NumberLong). See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.1k
views
1
answer
mongodb - Find by id with mgo
I would like to find a data by _id. I know that this data exists and that this _id exist (I've tested it with ... 15:42:18 Cookie_Id.go:128: OK See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.1k
views
1
answer
mongodb - MongoCollection versus DBCollection java
When should you be using MongoCollection and when DBCollection? The same questions apply to DBObject, BasicDBObject, ... would be very welcome. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.1k
views
1
answer
mongodb - Mongo Sort by Count of Matches in Array
Lets say my test data is db.multiArr.insert({"ID" : "fruit1","Keys" : ["apple", "orange", "banana ... because fruit2 has both carrot and banana See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.1k
views
1
answer
mongodb - Is data returned from Mongoose immutable?
I want to add to the return data from a mongoose query: User.findById(userId, function(err, data) { if (!err ... any way to append data here? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.3k
views
1
answer
mongodb - mongo _id field duplicate key error
I have a collection with the _id field as a IP with type String. I'm using mongoose, but here's the error on the ... Throws dup key: { : null } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.1k
views
1
answer
mongodb - How do I update fields of documents in mongo db using the java driver?
References: http://www.mongodb.org/display/DOCS/Java+Tutorial Still pretty new to mongo db but I'm trying ... the existing document in mongo See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.3k
views
1
answer
mongodb - mongo group and count with condition
I'm trying to group a set of documents and count them based on their value. For example { "_id" : 1, " ... how can I achieve the above result? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
981
views
1
answer
mongodb - Creating new Meteor collections on the fly
Is it possible to create new Meteor collections on-the-fly? I'd like to create foo_bar or bar_bar depending on ... : http://pastie.org/6411287 See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.1k
views
1
answer
mongodb - Find whether someone got a birthday in the next 30 days with mongo
Let's say that we got a collection of users, each with a birthday in BSON type date format. How can we run a ... birthday in the next 30 days ? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
969
views
1
answer
mongodb - Ordering a result set randomly in mongo
I've recently discovered that Mongo has no SQL equivalent to "ORDER BY RAND()" in it's command syntax ( ... how to solve this more elegantly? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
0
votes
1.4k
views
1
answer
mongodb - mongoexport E QUERY SyntaxError: Unexpected identifier
The issue seems straight forward. I have a database (test) and a collection called (users) so I run the command: ... due to a bad experience... See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mongodb
Page:
« prev
1
2
3
4
5
6
7
8
9
10
11
12
...
26
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] Mysql:SQL 错误 [08S01]: Communications link failure
[2] ruby on rails - How to fix RSpec test that depends on time passing by
[3] laravel中生产环境env配置如何更新
[4] vue.js - Unexpected uncaught exception with Vuex action and Composition API
[5] uniapp连接本地sqlite数据库 路径问题
[6] while相关
[7] Angular升级遇到问题
[8] JS监听Chrome回退按钮失败?
[9] v-for中怎么判断渲染条件
[10] kubectl - Kubernetes: enable host network for all pods/services
2.1m
questions
2.1m
answers
60
comments
57.0k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...