Are there any workarounds to execute join-like query with NoSQL document database? Example: We need to select last month articles by users with rating more than thousand.
Consider the following scenario wi开发者_运维百科th MongoDB: Three writers (A,B,C) insert a document into the same collection.
I have a question that involves a performance question and Mongo Design. Currently a project I am working on will involve notifications
This is a continuation of the project from this post. I have the following model: public class Product {
I hav开发者_如何学Pythone an application server which writes frequently to a database and reads it in the near future, but then very rarely that data entry is read.
I\'ve got an upcoming project and I can\'t decide whether to stick with SQL or switch over to NoSQL. It\'s basically a reporting system with the main interface being reporting on the data entered in b
Redis is a NOSQL key/value database, which reads the entire life within 开发者_运维百科RAM (and thus is quite fast). To me, an array (e.g., in PHP) does the same, as an array is a set of key/value. Th
How can I add a new field to every document in an existent coll开发者_开发知识库ection? I know how to update an existing document\'s field but not how to add a new field to every document in a collec
I\'m designing a P2P application in which every peer have a partial graph. Some nodes in the partial graph can be proxy nodes which contain contact information for another peer.
I have to make a small project and I have to use a nosql db and a language which runs on the JVM. So i thought: Scala and MongoDB
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