database mongo

This is a document: { title:"Happy thanksgiving", body: "come over for dinner" blocked:[ {user:333, name:'john'}, {user:994, name:'jessica'},…

Let's say i put a limit and skip on the MongoDB query...I want to know the total results if there was not a limit on there. Of course, I could do…

I'm in the process of developing Route Tracking/Optimization software for my refuse collection company and would like some feedback on my current…

is there a skeleton setup example (with the options available for each of the api configurable values?)? this question/answer get close to what i…

I installed mongoDB through the official tutorial http://www.mongodb.org/display/DOCS/Building+for+Linux The daemon starts up, a netstat-na | grep…

Let's assume that it was only writes. Each "document" inserted is less than 140 characters. How many writes can this database handle?

Install Mongo on A. Start the server: $ mongod --rest --replSet myset rs.initiate() on A. Install Mongo on B. Start the server: $ mongod --rest…

I don't want to rent another server... But wikipedia says: MongoDB should never be deployed on fewer than two servers[citation needed]: a master and…

chat = { messages: [ { body:"asdf", timestamp: 234256243 }, { body:"asdf", timestamp: 234256241 }, { body:"asdf", timestamp: 544256244 }, }; Suppose…

Let's say I have a collection of "rooms". Each room is a document that looks like this: room = { perms: [ { user:"matt", visible: 1 }, {…

Let's take an example of a chat room. Should I create 2 collections: Room and Messages , and store the room details (title, description) separately…

Let's say I have a model called User . I have an array with object Ids. I want to get all User records that "intersect" with the array of Ids that I…

db.posts.update({}, {"pop_score":999}); db.posts.find({},{"pop_score":1}); { "_id" : ObjectId("4d8eadd6df83500f3b000004"), "pop_score" : 0 } { "_id"…

Ok, so I'm trying to roll out a small update to my site. One update includes querying upon a field that may or may not exist. This doesn't work as I…

I'm currently in the process of migrating a CRM over to Mongo. Our leads table has a schema that varies a lot so it makes sense to put it in a NoSQL…

Hey, I've got a bit of a problem right now trying to figure out how to resolve a specific many to many model in Mongo. I have an event scheduling…

Suppose I have many "posts" in a database as documents, each with an "author" attribute. I want to execute a query like this: posts.find(author IN…

Hello Guys, I have to create the database as name "personal_connections" using mongoVUE tool. but i am getting application error message as below…

There's a ['title'] attribute inside each document. How can I do a .find, but only display the title?

This will no doubt be a stupid question, and we can all laugh about how stupid it is when the answer points out the glaring simplicity of it all,…