couchdb

问题 I am developing a JAVA based web application. The primary aim is to have inventory for products being sold on multiple websites called channels. We will act as manager for all these channels. What we need is: Queues to manage inventory updates for each channel. Inventory table which has a correct snapshot of allocation on each channel. Keeping Session Ids and other fast access data in a cache. Providing a facebook like dashboard(XMPP) to keep the seller updated asap. The solutions i am

问题 I am evaluating using CouchDB in my new Django-project. Is there a good database backend in Django for CouchDB? I have tried searching but the projects that turn up seems very small and/or old and I can't make out what parts are solved regarding QuerySets, Auth, Sessions etc. Any help would be greatly appreciated. 回答1: I did a project recently using Couchdbkit which worked very well - it has a Django extension which replicates a lot of the function of models and querysets. I actually wrote my

问题 I don't get attachment upload for the browser to work. Some hints are here, others there. The docs are quite good but I'm unable to translate that to a AJAX upload. I'm looking for a super simple HTML/JavaScript example (with or w/o jQuery) of how to upload a file from (relatively modern) browser to the db without making use of jquery.couch.app.js wrapper or stuff. The simpler the besser. Any help appreciated. 回答1: Alright, here's your pure JavaScript file upload implementation. The basic

问题 I would like to load a random document out of a set of documents stored in a CouchDB database. The method for picking and loading the document should conform to the following requirements: Efficiency: The lookup of the document should be efficient, most importantly the time to load the document must not grow linearly with the total number of documents. This means the skip query argument cannot be used. Uniform distribution: The choice should be truly random (as far as possible, using standard

问题 Sorry if this question is somewhat subjective. I am new to 'could store', 'distributed store' or some concepts like this. I really wonder what do they have in common and want to get an overview on all of them. What do I need to prepare if I want to write a product similar to this? 回答1: The NoSQL Database site summarizes the concept like this: Next Generation Databases mostly address some of the points: being non-relational, distributed, open-source and horizontal scalable. The original

问题 Sorry if this question is somewhat subjective. I am new to 'could store', 'distributed store' or some concepts like this. I really wonder what do they have in common and want to get an overview on all of them. What do I need to prepare if I want to write a product similar to this? 回答1: The NoSQL Database site summarizes the concept like this: Next Generation Databases mostly address some of the points: being non-relational, distributed, open-source and horizontal scalable. The original

问题 I'm looking at both projects and I can't really see the difference from Cassandra Site: Cassandra is a highly scalable, eventually consistent, distributed, structured key-value store...Cassandra is eventually consistent. Like BigTable, Cassandra provides a ColumnFamily-based data model richer than typical key/value systems. from CouchDB Site: Apache CouchDB is a distributed, fault-tolerant and schema-free document-oriented database accessible via a RESTful HTTP/JSON API. That said, I see the

问题 I want to get CouchDB running as the backend for my mobile app, replacing SQlite. I have been incredibly confused as a newcomer to this technology because, in addition to all of similar sounding products released by Couchbase last year(Couchbase, Couchbase Single Server, Membase, Couchbase Mobile), they now seem to be dropping/combining all of them into a single project, Couchbase Server. But, that is actually Membase, not CouchDB. To top that off, the creator of CouchDB is no longer going to

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . What are the best practices for NoSQL Databases, OODBs or whatever other acronyms may exist for them? For example, I've often seen a

问题 I have a production server running an app that uses CouchDB as its main database. I'd like to set up a staging server that has a CouchDB instance that I can always sync back up to the production instance and get a clean copy. A naive solution would be simply to have the staging server continuously replicate the production server's database, and just use that. The problem of course is that in the course of testing on the staging server, I may do things that modify the database. Functionally