When to use CouchDB over MongoDB and vice versa [closed]

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I am stuck between these two NoSQL databases. In my project i will be creating a database within a database. For example, I need a solution to create dynamic tables. So users can create tables with columns and rows. i think either MongoDB or CouchDB will be good for this but I am not sure which one. i will also need efficient paging as well mongodb nosql couchdb share|improve this question asked Sep 15 '12 at 13:32 Luke101 6,8931867139

88   I wish admins would stop closing questions like these as off-topic. As developers we're always interested in how technologies compare. –  foreyez Aug 14 at 15:48 31   @foreyez: 70 upvotes & 33 stars on the question, plus 88 upvotes on the accepted answer say you're right. I agree too; far too many overzealous moderators around. –  aidan Aug 23 at 6:44 7   I wish they would modify the system to better facilitate creation of the on-topic question they are looking for, and to better direct users to that question. I have no idea if this question was ever addressed and no convenient way to track it down. –  doub1ejack Aug 26 at 0:24 I wish they will add the functionality in this website where we could "upvote" or "downvote" the reason itself given to this question as "off-topic" which might help turning these type of questions back to "on topic". – Yegya Dec 10 at 15:49 add comment

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4 Answers

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Of C,A & P which 2 are more important to you? Quick reference, the Visual Guide To NoSQL Systems MongodB : Consistency and Partition Tolerance CouchDB : Availability and Partition Tolerance A blog post, Cassandra vs MongoDB vs CouchDB vs Redis vs Riak vs HBase vs Membase vs Neo4j comparison has 'Best used' scenarios for each NoSQL database compared. Quoting the link, MongoDB: If you need dynamic queries. If you prefer to define indexes, not map/reduce functions. If you need good performance on a big DB. If you wanted CouchDB, but your data changes too much, filling up disks. CouchDB : For accumulating, occasionally changing data, on which pre-defined queries are to be run. Places where versioning is important. A recent (Feb 2012) and more comprehensive comparison by Riyad Kalla, MongoDB : Master-Slave Replication ONLY CouchDB : Master-Master Replication A blog post (Oct 2011) by someone who tried both, A MongoDB Guy Learns CouchDB commented on the CouchDB's paging being not as useful. A dated (Jun 2009) benchmark by Kristina Chodorow (part of team behind MongoDB), I'd go for MongoDB. Hope it helps. share|improve this answer edited Mar 29 at 10:51 Jasper van den Bosch 1,410628 answered Sep 16 '12 at 5:37 user799188 2,271199

Outstanding answer. Those links are gold. –  jjohn Dec 17 at 3:03 add comment