Databases that propose alternative solution to SQL (Relational) Database which can be document oriented, key/value, graph, objects,...

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6
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7answers
2k views

How would you design a user database with custom fields

This question is around how should I design a database, it can be relational / nosql databases, depending on what will be the better solution Given a requirement where you'll need to create a ...
1
vote
0answers
101 views

Code structure with MongoDB in python

I am new to MongoDB and python. I know how to make basic use of pymongo in order to manipulate documents. I am having trouble finding how to create some structure or governance in what gets inside ...
4
votes
3answers
6k views

When to use a nosql database such as mongodb over mysql?

I'm new to the concept of nosql databases and have never used it. Based on what I've read and the little that I've understood I still don't see how they can be particularly useful if you can't make ...
2
votes
0answers
248 views

Is this a good implementation of mongodb for a money management tool?

I have a money management tool which has users. Each user may have several accounts/funds (e.g. bank account). For each account/fund there may be thousands of transactions. Users may only view their ...
1
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1answer
63 views

Looking for advice for the following MS SQL Schema

We currently have the following SQL Schema: Projects Budgets BudgetTabs BudgetSections BudgetTasks BudgetTaskDetails ...
1
vote
1answer
285 views

A very simple database system with JSON

If we need to store some data in a database, but without the need of advanced SQL features, can we use this scheme (written here in Javascript / node.js) : // the DB will be in RAM ! var myDb = {}; ...
3
votes
2answers
398 views

Should I use relational or noSQL databases for this problem

I'm working on a project where one part is to save data of different people. A typical person might have the following structure: Email: Multiple values possible City: Multiple values possible ...
1
vote
4answers
224 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 ...
2
votes
1answer
407 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, ...
3
votes
3answers
350 views

Is there a 'standard' SQL that can replace all the various custom versions?

I have been writing SQL for over 10 years now. I am extremely proficient at it and have experience working in SQL Server, Oracle, MySQL, PostgreSQL, etc. While there are multiple standards out there, ...
2
votes
1answer
287 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 ...
2
votes
1answer
560 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 ...
0
votes
1answer
228 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 ...
45
votes
4answers
3k views

Is there anything groundbreaking about NoSQL? [closed]

I am a very solid Relational Database guy and understand all the way to 3rd normal form, appreciate the algebraic set theory roots of SQL, and can probably relationalize a broken heart (or not). I ...
3
votes
7answers
606 views

Should I try to write simple key-value storage by myself? [closed]

I need a key-value storage in a simplest form we can think of. Keys should be some fixed-length strings, values should be some texts. This key-value storage should have an HTTP-backed API. That's ...
5
votes
2answers
556 views

Would these two scenarios be good candidates for a NoSQL database?

I've checked a few other threads around the topic and search around, I am wondering if someone can give me a clear direction as to why should I consider NoSQL and which one (since there are quite a ...
2
votes
1answer
285 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 ...
0
votes
0answers
186 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 ...
3
votes
2answers
5k 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
votes
0answers
696 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 have......
1
vote
1answer
671 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 ...
2
votes
1answer
572 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
0answers
181 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 ...
1
vote
1answer
247 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
153 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 (...
146
votes
13answers
81k 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 ...
1
vote
2answers
422 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 ...
4
votes
4answers
3k 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 ...
4
votes
4answers
546 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 ...
1
vote
4answers
1k 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 ...
2
votes
1answer
848 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 ...
10
votes
7answers
699 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 ...
2
votes
0answers
121 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 ...
2
votes
2answers
270 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 ...
0
votes
4answers
2k 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 ...
12
votes
1answer
867 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, ...
1
vote
1answer
875 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 List<Company&...
2
votes
1answer
530 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; ...
6
votes
1answer
1k 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 ...
5
votes
1answer
3k 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 ...
2
votes
3answers
370 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
votes
1answer
236 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
votes
1answer
716 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 ...
2
votes
2answers
2k 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 ...
6
votes
3answers
703 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 ...
0
votes
2answers
259 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 ...
2
votes
4answers
964 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?
5
votes
4answers
2k 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 ...
5
votes
1answer
209 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 ...
1
vote
2answers
498 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 ...