Databases that do not use SQL as their query language.

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2
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2answers
175 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 ...
2
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2answers
639 views

How to represent a tree structure in NoSQL

I'm new to NoSQL and have been playing around with a personal project on the MEAN stack (Mongo ExpressJs AngularJs NodeJs). I'm building a document editor of sorts that manages nodes of data. Each ...
2
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6answers
1k views

what is the benefit of using key/value stores with respect to database sharding?

What has key/value stores got to do with making database sharding easier? Because if I do not use a key/value store, I can easily shard my database too right? (Like say, I can easily say users with ...
2
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3answers
337 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 ...
2
votes
1answer
96 views

Is there a better way to update NoSQL records in bulk?

When we started our application we had the choice of going with the traditional MS-SQL normalized database or with a NoSQL database (RavenDB is what we tried out). Here is a simplified version of our ...
2
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1answer
754 views

What is the recommended MongoDB schema for this quiz-engine scenario?

I'm working on a quiz engine for learning a foreign language. The engine shows users four images simultaneously and then plays an audio file. The user has to match the audio to the correct image. ...
2
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1answer
274 views

Orthogonal design for product pricing and production planning with a NoSQL database

I am in the process of developing extensible software for the company I am working with for product pricing and production planning. The Present Scenario There are basically two types of products: ...
2
votes
1answer
52 views

Architecture: Storing all properties as JsonProperty in NDB?

I am storing the data for my app in Google's NDB, but am confused as to what architecture to use. The app data is mostly text based, but has some non-text properties like DateTimeProperty, ...
2
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1answer
1k 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 ...
2
votes
1answer
406 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; ...
2
votes
1answer
516 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 ...
2
votes
1answer
445 views

Active Record library with support for both SQL and NoSQL?

I'm looking for a PHP Active Record library that supports both SQL and NoSQL drivers (mongodb in particular). It doesn't matter if it actually has the NoSQL driver, I can write it myself, as long as ...
2
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0answers
103 views

Which type of query do wide column stores optimize

I have some experience with document based stores (MongoDB and CouchDB) and I am interested in exploring wide column databases. Based on my initial exploration I can grasp a basic understanding of ...
2
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0answers
199 views

Is database version control practical? [closed]

The topic of database version control seems to come up at my work and in social discussion more and more often. But the truth is, I haven't met anyone actually DOING it. The only thing Googling the ...
2
votes
0answers
96 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 ...
1
vote
1answer
2k 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 ...
1
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2answers
525 views

what is storing data in constant space?

"bloom filter allows us to store data in constant space" Can someone explain what exactly does that sentence means?
1
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4answers
690 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 ...
1
vote
2answers
459 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 ...
1
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2answers
162 views

Is NoSQL a good fit for a graphing app, and how can I compare different NoSql Servers?

I am traditionally a MsSQL or MySQL developer - I have been prototyping a new application that involves storing data from many targets. I have seen that the app appears to get slow after scaling to ...
1
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1answer
631 views

NoSQL as file meta database

I am trying to implement a virtual file system structure in front of an object storage (Openstack). For availability reasons we initially chose Cassandra, however while designing file system data ...
1
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1answer
66 views

n:m as the only way to store notifications?

I have a user and a notifications table. I want to make sure that every users sees a new notification once and only once. Not more, not less. The intuitive idea is to have a n:m relation table with ...
1
vote
1answer
121 views

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 ...
1
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2answers
225 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 ...
1
vote
1answer
652 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 ...
1
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1answer
106 views

Azure Storage Table design with multiple query points

I have the following Azure Storage Table. PositionData table: PartitionKey: ClientID + VehicleID RowKey: GUID Properties: ClientID, VehicleID, DriverID, Date, GPSPosition Each vehicle will log ...
1
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1answer
220 views

Is Neo4j graph database sufficient to itself for all query types?

Neo4j eases relationship traversals => especially useful for a social network for instance. But are there any scenarios when it's advised to associate an additional relational database (or other ...
1
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1answer
635 views

Static Tables vs Dynamic Entity Attributes Storage Configurations

I am trying to figure out a better way to decide table storage configurations whether it will use static configurations using tables or dynamic configurations using EAV (entity-attribute-value) When ...
1
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2answers
107 views

NoSQL Modify operations performance

I am working on the application which in near future (hopefully) will have to process tens or hundreds of thousands of items (item is currently one row in relational database table) per second. If I ...
1
vote
1answer
31 views

Proper tree NoSQL structure with focus on full-text searching

I developing an app with tree(folder-file) structure, on which I should perform full-text searches with MongoDB. I did a research on the best tree structure practices and found this great article, but ...
1
vote
1answer
91 views

Database choice [closed]

I am working on a system where I am replacing and existing Cobol system with C#. For the database I have hit some requirement which I am having a hard time to find complete support for (tried SQLite ...
1
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1answer
106 views

Automatic denormalization for a NoSQL database application

We have a use case where we store table-like data, but we know about the schema of the data only at runtime. In our application, a power user defines a schema and normal user can create records and ...
0
votes
1answer
193 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 ...
0
votes
1answer
165 views

Recommendation for a database to query records with attributes that are arrays or hashes?

I'm building site with a very simple data structure: documents that are nodes that reference other nodes that each have arrays of parents, children and siblings, so the structure is: Node: uuid name ...
0
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1answer
21 views

Looking for advice for the following MS SQL Schema

We currently have the following SQL Schema: Projects Budgets BudgetTabs BudgetSections BudgetTasks BudgetTaskDetails ...
0
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2answers
219 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 ...
0
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1answer
70 views

Relational Database with XML [on hold]

I want to create a Metadata server in which I can store different Metadata from different file types. There are existing standard tags in Exif or IPTC-Core Metadata which I can input as columns in the ...
0
votes
1answer
162 views

MongoDB: Replicate data in documents vs. “join”

Disclaimer: This is a question derived from this one. What do you think about the following example of use case? I have a table containing orders. These orders has a lot of related information ...
0
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1answer
148 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 ...
0
votes
1answer
425 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 ...
0
votes
1answer
129 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 ...
0
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0answers
29 views

I have two applications… use NoSQL or RDBMS? [duplicate]

I have two applications in the making: one is a budget management tool; the other is a article based places/restaurant guide. The budget management tool works where users create accounts (e.g. bank ...
0
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4answers
91 views

Is there an accepted design pattern for storing a few global variables in a NoSQL database?

I'm wanting to create an admin dashboard for my app, and to show new events there. In order to know which events are new, I'll need to store at least one extra datapoint to the server: the last date ...
0
votes
1answer
51 views

Best way to structure many-to-one allocation of users to projects in NoSQL

I apologise if this is a bit of a stupid or broad question, but I'd like some general feedback please! Say I have this DB structure for users (in Mongo/JS, but really it's all pseudocode- and the IDs ...
0
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0answers
78 views

Do aggregate-oriented NoSQL databases have advantages for implementing Real Time BI?

I am reading a book called "NoSQL distilled" by Martin Fowler and he writes: Aggregates can also be used to obtain analytics; for example, an aggregate update may fill in information on which ...
0
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0answers
298 views

How to link the data of MongoDB and Neo4j?

I want to implement a system which store the profiles of employee and the resources that they have. There are many types of resources, such as the documents they produced, the techniques they ...
0
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0answers
102 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 ...
0
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1answer
121 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 ...
-1
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4answers
1k 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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1answer
298 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 ...