nosql

相关标签：javascript jquery android 多少钱 iPhone

Imitate join for NoSQL document database

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.[详细]

2023-04-12 18:45 分类：问答
MongoDB: getting ObjectId of last inserted document with multiple, concurrent writers?

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.[详细]

2023-04-12 15:43 分类：问答
MongoDB/NoSQL Performance and Design

I have a question that involves a performance question and Mongo Design. Currently a project I am working on will involve notifications[详细]

2023-04-12 14:18 分类：问答
RavenDB complex MapReduce index missing output

This is a continuation of the project from this post. I have the following model: public class Product {[详细]

2023-04-12 08:41 分类：问答
Suggestion for write frequently, read rarely database

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.[详细]

2023-04-12 07:51 分类：问答
SQL vs NOSQL: Which to use for this schema?

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[详细]

2023-04-12 07:32 分类：问答
Difference between Redis (key/value database) and an associative array?

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[详细]

2023-04-12 04:50 分类：问答
Add new field to every document in a MongoDB collection

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[详细]

2023-04-12 04:12 分类：问答
Is there any implementation of Transparent Distributed Queries over a graph database?

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.[详细]

2023-04-12 03:41 分类：问答
What do I need for a Webpage if I would use Scala + MongoDB

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[详细]

2023-04-11 23:49 分类：问答