Databases that do not use SQL as their query language.

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options for data analytics for time series store

I'm building an Internet of Things solution that has a number of real time feeds. I need to make a couple of design decisions with regards to the data store and reporting and looking for input. I ...
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1answer
121 views

Is NoSQL a better choice when working with OOP? [closed]

This might be a silly question, but I've reading a little bit about NoSQL databases on the past few days and I'm trying to understand when really they help us. One thing I've realized though is that ...
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0answers
40 views

Mongo DB schema creation

I am creating a chat app. What I will have is A set of users who will chat with customerCare. A company holding different departments. A department holding different agents. Agents from various ...
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1answer
87 views

Is a Document NoSQL database appropriate for backing an email system? [closed]

Let's say I'm building a webmail application that fetches all the emails of the users to store them in a database. For example, if users have approximately 100M of emails, for 10,000 users it will be ...
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57 views

Schemaless NoSQL RESTful design?

In a recent project; I used MongoDB with MongoEngine (an ORM/ODM for Python). This allowed me to specify schema in a central "Model". My new project I am hosting on Windows Azure; and there is no ...
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1answer
55 views

Dividing database between MySQL and NoSQL

Mine is a typical website developed with LAMP stack. Due to scalability issues we are planning to incorporate NoSQL for the application. For the implementation, we are planning to implement hybrid ...
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0answers
28 views

How to upload huge data into SimpleDB quickly? [migrated]

I have a 2GB text file. I want to upload this into Amazon SimpleDB. I am using SDBExplorer to bulk upload the data. However the upload process is taking a lot of time. You can only upload around 25 ...
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1answer
103 views

NoSQL design - Storing project assignments

I currently have a planning tool using SQL tables that are sort of setup like this: Date table (Contains dates & indicates if that day is a weekend / holiday etc) Employee (Simple data) Project ...
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13answers
38k views

Why use a database instead of just saving your data to disk?

Instead of a database I just serialize my data to JSON, saving and loading it to disk when necessary. All the data management is made on the program itself, which is faster AND easier than using SQL ...
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6answers
6k views

Is MongoDB the right choice in my case? [closed]

I'm going to build my first real project in Rails that consist in a web app made of 3 main parts: The static part where no database is used The User registration part which will require a database ...
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2answers
132 views

Is eventual consistency a wrong solution for e-commerce applications?

I'm reading about eventual consistency in couchDB. I'm somewhat confused by the term and its consequences on an application. Let's say I'm building a distributed e-commerce website where monetary ...
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1answer
701 views

How to model hashtags with nodejs and mongodb

Existing architecture: nodejs server with mongodb backend. I have strings coming in describing images that can have #hashtags in them. I wish to extract the hashtags from the strings, store the ...
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4answers
1k views

Can NoSQL databases be used in e-commerce companies for order management?

Is it possible to use a non relational database be in an Order management system for an e-commerce company with a large number of orders everyday, like Amazon? Can the benefits of Non Relational ...
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4answers
199 views

Typed search over complex model. Possible CQRS / NoSQL solution

Given the following relational model: I need to implement a typed search for hotels, which should be able to query on name, city, country, category, hoteltype, roomprice, customtype, room custom ...
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5answers
18k views

When would someone use MongoDB (or similar) over traditional RDMS?

Im a bit confused......the whole NoSQL and such. When would you choose to use something like MongoDB over something like Oracle or MYSQL? I dont really understand....the "difference" as far as usage ...
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0answers
40 views

Strategies for Indexing Custom Fields in RavenDB

In the relational database world, if I was developing a CRM system and wanted to have the user add their own custom fields that are searchable, I could have tables that store the name of the new ...
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4answers
297 views

How to factor out data layer in nopCommerce and replace MS SQL with RavenDB?

I am new to nopCommerce and ecommerce in general but I am involved in an ecommerce project. Now from my past experiences with RavenDB (which mostly were absolutely pleasant) and based on the needs of ...
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1answer
420 views

How best to merge/sort/page through tons of JSON arrays?

Here's the scenario: Say you have millions of JSON documents stored as text files. Each JSON document is an array of "activity" objects, each of which contain a "created_datetime" attribute. What is ...
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7answers
256 views

Nested Entities and calculation on leaf entity property - SQL or NoSQL approach

I am working on a hobby project called Menu/Recipe Management. This is how my entities and their relations look like. A Nutrient has properties Code and Value An Ingredient has a collection of ...
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0answers
83 views

Would a model like this translate well to a document or graph database?

I'm trying to understand what types of models that I have traditionally persisted relationally would translate well to some kind of NoSQL database. Suppose I have a model with the following ...
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2answers
123 views

Lucene + Joins == RDBMS?

Now that Lucene supports joins (at indexing time and at querying time) can one use Lucene as a databse (a NoSQL one, with Eventual Consistency)? Note: I was pondering on that for sometime and this is ...
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4answers
511 views

Is a NoSQL database suitable for me? [closed]

I'm developing a WPF application whose core functionality involves creating a large object graph (often tens of thousands of entities) which the user can modify certain parts of, then save to a ...
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7answers
4k views

What will be correct answer to “why is NoSQL faster than SQL” on interview?

It's just nonsense for me personally. I can't see any performance boost by using NoSQL instead of SQL. Maybe SQL over NoSQL, yes but not in that way. I think that if I answer "I have no idea" or ...
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1answer
283 views

Is there any “Set” database? [closed]

Is there any "set" database? For example Neo4j is a "graph" database. What I'm looking for is database which can be used to organize "items" into "sets" and then be able to query them with set ...
10
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1answer
385 views

How much does the data model affect scalability and performance in so called “NoSQL” database?

You can't ever have a talk about so called "NoSQL" database without bringing the CAP theorem (Consistency, Availability, Partition : pick two). If you have to pick say, between MongoDB (Partition, ...
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5answers
1k views

At what size of data does it become beneficial to move from SQL to NoSQL?

As a relational database programmer (most of the time), I read articles about how relational databases don't scale, and NoSQL solutions such as MongoDB do. As most of the databases I have developed ...
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1answer
280 views

JSON object and storage of nosql

I have read Would a NoSQL DB be more efficient than a relational DB for storing JSON objects? and am building a small test project in Asp.Net. I have a webapi up in Azure. It returns a ...
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1answer
293 views

Sub-Resource data should be embedded in Resource entity or duplicated in NoSQL document?

I have a scenario similar to as depicted below, public class Post { private int id; private int postType; private int score; private User originalPoster; private String title; ...
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1answer
372 views

Data integrity in NoSQL situations

Background To start off, at work I work with a legacy system that, in its day, was quite spectacular, but now is ...interesting... to work with. It uses IBM (now Rocket) UniVerse as its backing ...
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77 views

What is a solution in keyword trend analysis with a FreeText field in SQL Server 2008R2?

I am currently using a SQL Server 2008 db, where in a table, I have a freetext field defined. I would like to perform some trend analysis on one field, where I would provide the base for the trend, ...
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124 views

Raven DB architecture suggestions

I am working on a experimental project of my own implementing RavenDB. The project deals with analyzing tweets and detecting user groups from them. The project stores all the tweets in RavenDB. Now I ...
0
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1answer
102 views

Google Datastore and deep records

I'm in the beginning of creating a website that uses Google Datastore to store information related to clients and I'm curious if the record is too deep for NoSQL or if I'm fine. Essentially I'll be ...
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1answer
482 views

What is a good pattern for multi language in MongoDb?

Say I want to build a website that support multiple language and use MongoDB datastore. I wonder what is a good approach to have multiple versions of the body and title of an article, one for each ...
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3answers
1k views

Storing n-gram data

(hopefully I landed on the right stack exchange site) I was hoping to brainstorm a little bit on the subject of storing n-gram data. In my project, I am trying to solve linguistic problems where I ...
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3answers
305 views

Is it sane to use Document based NoSQL for store big data tables

In Document based NoSQL to create tables (AFAIK) I need: Create such many as many rows in table documents with same ID field (that will be table id) and each time need to set the columns (for each ...
3
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1answer
147 views

What does it mean for an architectural style to be document-centric?

I heard it said that REST is "document-centric". Unclear what this meant, I began poking around and found the term document-oriented being used of databases, particularly NoSQL databases, and in ...
4
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1answer
285 views

Designing a universal database driver class

I have a homebrew MVC framework that I have been using for a while, and it has been working great, but I am planning an upgrade to it for its ORM classes. So far, it only supports SQL databases by ...
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2answers
666 views

Why is MongoDb popular with Node.js? [closed]

I've been looking att different web stacks, mainly rails and node.js. One thing that strikes me is that while rails is often used with a relational database Node.js seem to go hand in hand with ...
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128 views

HDF vs NOSQl solutions

Hi I get a look in some scientific data stored in HDF5 format and I was wondering if there is any NoSQl solution that will reach the same performance in read/write as HDF5 . The data of my example ...
4
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3answers
345 views

Looking for a freeware NoSql key-value database to offload a Java HashMap [closed]

I have a Java HashMap with a String key and POJO value in a long-running application, and it's taking up a large chunk of memory (over 500mb, and this number is expected to grow - I'm guesstimating ...
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2answers
202 views

ACID compliant Database that isn't NoSQL? [closed]

I'm not necessarily asking if a NoSQL database can be ACID compliant, which has been asked here: Is there any NoSQL that is ACID compliant? I'm wondering if we have a database either now or in the ...
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4answers
544 views

Why NoSQL (Key-Value) storage become popular these days?

It seems that NoSQL concept not something very new and innovative, but these days become very popular. Why it become popular recently but not happen in the time when SQL is very popular?
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4answers
6k views

why are noSQL databases more scalable than SQL? [duplicate]

Recently I read a lot about noSQL DBMSs. I understand CAP theorem, ACID rules, BASE rules and the basic theory. But didn't find any resources on why is noSQL scalable more easily than RDBMS (e.g. in ...
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4answers
1k views

NoSQL and BIG DATA

I am doing an internship on Big Data technologies so I am new to this area. My question is about the use of NoSQL in the Big Data architecture. Do we need always to use a distributed storage (like ...
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1answer
140 views

What is the common approach to component template databases?

My Project: I have employees who are required to go through a checklist when they encounter a duck, a cat, and a human. In our business, we have a set number of ducks, cats, and humans that come in ...
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2answers
427 views

Why OTServs have an item cloning problem if the server crashes? [closed]

OTServs are open source MMORPGs with a huge community. Mostly all of them have a serious problem: if the server crashes, people can clone items. This is a dirty trick that can be executed because the ...
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1answer
1k views

Is map-reduce the basic factor that makes NoSQL more scalable than SQL?

I'm studying the differences between NoSQL and SQL, and what makes the first more scalable. I think I got the point, so I'll try to explain: Suppose an app has a list of billions of users, each with ...
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1answer
212 views

What are techniques used to make scalable, fast databases? [duplicate]

I'm studying the differences between NoSQL and SQL. If I understood correctly, there are two main techniques to optimize a database: Indexing rows. Say you wanted to make a query such as WHERE x = 1 ...
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3answers
1k views

NoSQL Document Database as a Message Queue

I am considering using a NoSQL Document database as a messaging queue. Here is why: I want a client to post a message (some serialized object) to the server and not have to wait for a synchronous ...
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1answer
356 views

NoSQL (Azure Table Storage) RowKey design for ordered data

I store large quantities of GPS data in storage tables. Each partition can reach up to 1 million entities. Each GPS entity that is inserted into the table is actually sequential to the previous data ...