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Questions tagged [mongodb-4.0]

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MongoDB count() query returns outdated result in mongo shell / python script

Documents in my MongoDB collection are changing status field very frequently. I can observe it using a mongoDB client (Robo 3T). Now I'd like to monitor this process using mongo shell (or python ...
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1answer
60 views

Getting error while creating a New Connection using Studio 3T for Mongo DB

I tried to create a new connection with Studio 3T for Mongo DB. I don't have a previous DB connection and this is the new one that I am trying to create it. I can't able to figure out why this is ...
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22 views

Ops Manager Install in Windows and connect to mongod instance started in linux

Can we install ops manager in windows and connect to mongodb instance started in Linux operating system? Does ops manager installation on windows require separate installation of mongoDB instance on ...
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1answer
35 views

Is mongoreplay included in the toolset with mongodb 4.0 community version for windows?

Where to find mongoreplay tool in mongodb 4.0 community version for windows? It is not in the same place as other tools - mongoexport, mongoimport, etc.
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MongoDB Indexing - What happens if I don't index all necessary fields?

Let's say I have a collection with 20 fields and a query that uses 5 of them, to find the documents I need. 3/5 of those fields are always used in the query, 1 for equality comparison, 1 for range ...
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1answer
49 views

Invalid access at address: 0 for Mongo v4.0.5

I am running mongo on kubernettes in statefulsets. It was working fine for weeks then all of a sudden this morning i started getting errors where mongodb was failing. I tried running: mongod --...
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66 views

How to Recover Mongodb database

I have transferred my mongodb database to a new computer and am having trouble opening the database. I don't get any errors, it just won't show the 'finance' database. Here is the response when I say ...
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1answer
37 views

Equivalant MongoDB query of MySQL date query with arithmetic operations

How we can perform the below given MySQL query in MongoDB preferably in MongoDB-4.0: SELECT *,ABS(TIME_TO_SEC(TIMEDIFF(now(), datefield))/3600) as hours, (field1*field2*field2+field3*(1/(ABS(...
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1answer
26 views

Get latest data for specific identifier

I have an application that (mostly) uses only the very latest data available for a certain identifier (may consist of multiple columns/keys). However, these data may be bad or implausible. In these ...
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1answer
22 views

Mongodb restriction on update to only allow “$push” operator

Mongodb V 4.0 I want to restrict a user's role by only allowing new inserts to the collection. Either as a new document, or as an append to the document. I don't want the user to be able to update(...