Questions tagged as 'nosql'

Tagged questions
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Alternatives to the (anti) standard Entity-Attribute-Value

I'm working on two systems that have a common characteristic: entities whose attributes are dynamic (ie can not be "hard-coded"), need to be queried in search operations (result filtering) , but are otherwise decoupled from the rest of the syste...
asked by 12.05.2014 / 08:25
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What is a graph-based database?

I did not find the answer to this question on this site. So my question is basically this: What is a graph-based database?     
asked by 25.09.2017 / 14:13
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NoSQL is synonymous with Object Oriented Database?

NoSQL is synonymous with Object Oriented Database? If the answer is no : What is the difference between the two?     
asked by 03.06.2014 / 20:28
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How to generate reports using NoSQL?

I have a Message document and in my NoSQL database I can have thousands of messages as follows: [{"origem":1,"destinatario":1,"created_at":"2016-12-20","conteudo":"P ligula pellentesque ultrices"}, {"origem":1,"destinatario":2,"created_at":"20...
asked by 27.12.2016 / 02:19
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What are the appropriate scenarios for graph-based databases

Lately I've been studying the graph-based Neo4j database. Given that the vast majority of current applications use traditional relational databases, I ask: What are the appropriate scenarios for using this type of database? What would...
asked by 21.09.2017 / 02:58
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Is there any modeling tool for NoSQL database?

I'm going to do a database design project for a web application that Cassandra will use. I would like to know if there are any tools that can help     
asked by 22.09.2015 / 18:21
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I can not return another field other than the primary key using $ project

I'm starting in MongoDB and would like to do a query on my bank like: Which animals got sick in the year 2016? Using $ group and $ project: db.animais.aggregate([ {$unwind : "$doencas" }, {$project : { year : {$year : "$doencas.data_di...
asked by 10.12.2016 / 17:09
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Why can not I open the MongoDb interface on the port: 28017?

I installed mongo on drive C and did some data creation tests and persisted, then I checked and there they were listed perfectly at the prompt. Until then, everything is OK! I open the browser and type localhost: 27017 and the sign of life messa...
asked by 22.01.2016 / 17:13
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Non-SQL database modeling

I'm developing a system that would use angular for the front-end part and the firebase for the database. Firebase uses a No-Sql database and I'm having a hard time understanding how I can model it. For example I have two nodes, "requests" and "r...
asked by 24.05.2017 / 16:04
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How to page a query in Azure Cosmos DB?

I'm trying to page a query in Azure Cosmos DB by reading this post: > Paging through query results in Azure DocumentDB , I got to the code: public async Task <ICollection <TEntity>> GetAllPaged(int page, string colleti...
asked by 30.08.2018 / 15:04