Top "Nosql" questions

NoSQL (sometimes expanded to "not only SQL") is a broad class of database management systems that differ from the classic model of the relational database management system (RDBMS) in some significant ways.

Scan with filter using HBase shell

Does anybody know how to scan records based on some scan filter i.e.: column:something = "somevalue" Something like this, …

nosql hbase
Retrieving/Listing all key/value pairs in a Redis db

I'm using an ORM called Ohm in Ruby that works on top of Redis and am curious to find out …

ruby rubygems nosql redis ohm
MongoDB nested array query

I've asked this as a comment on another question, and also posted a question on mongodb-user. No responses so far, …

mongodb mongodb-query nosql
Difference between HBase and Hadoop/HDFS

This is kind of naive question but I am new to NoSQL paradigm and don't know much about it. So …

hadoop nosql hbase hdfs difference
Difference between CouchDB and Couchbase

Are there any essential differences between CouchDB and Couchbase.

nosql couchdb couchbase
MongoDB dot (.) in key name

It seems mongo does not allow insertion of keys with a dot (.) or dollar sign ($) however when I imported a …

javascript mongodb nosql
How to find a substring in a field in Mongodb

How can I find all the objects in a database with where a field of a object contains a substring? …

mongodb nosql
NoSQL (MongoDB) vs Lucene (or Solr) as your database

With the NoSQL movement growing based on document-based databases, I've looked at MongoDB lately. I have noticed a striking similarity …

mongodb solr lucene memcached nosql
Amazon SimpleDB vs Amazon DynamoDB

I have some basic understanding what Amazon SimpleDB is, but according to the Amazon DynamoDB description it seems to be …

nosql amazon-web-services amazon-simpledb amazon-dynamodb
Where does mongodb stand in the CAP theorem?

Everywhere I look, I see that MongoDB is CP. But when I dig in I see it is eventually consistent. …

mongodb cap-theorem database nosql