Databases that do not use SQL as their query language.

learn more… | top users | synonyms

3
votes
2answers
83 views

Searching for text in a collection of about 2 million text files [on hold]

I'm working on a project where a user should be able to search some strings over about 2 million text files, each file has about 200-300 A4 size texts data, so after some search it seems that NoSql ...
1
vote
1answer
29 views

How to structure a reservations system in a document based database?

I really don't know if this is the right forum for this but I need help designing my database. Also I apologize for the horrible title: I don't know how to summarize the issue below in a single title. ...
-2
votes
1answer
41 views

Tools of the trade for storing and querying hundred of thousands of XML documents [closed]

Recently, I've been assigned a task where I have to build a system capable of storing hundred of thousands of XML documents (semantically annotated with a given ontology). The system has to also have ...
5
votes
1answer
2k 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
80 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 ...
3
votes
1answer
47 views

How do I best query for user-owned data when using NoSQL

Say I have a typical website which provides authenticated users access to their stored ('owned') data. Authorised users must be able to perform CRUD operations on their data. If I were using a ...
0
votes
1answer
123 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 ...
1
vote
1answer
119 views

Confused in NoSql data model

I have a web application that uses MongoDB as primary database. This is the first project I do with a NoSQL DB. I'm trying to create the application model but I'm confused. I know NoSQL databases are ...
17
votes
7answers
9k views

Why is NoSQL faster than SQL?

Recently I was asked: Why is NoSQL faster than SQL? I didn't agree with the premise of the question... it's just nonsense for me personally. I can't see any performance boost by using NoSQL ...
1
vote
2answers
196 views

NoSQL or MySQL? [closed]

I'm developing an app that requires to save data that is not consistent across all rows. These database entries represent different kind of sport activities. Let's take an example: In football the ...
14
votes
5answers
3k 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 ...
7
votes
2answers
7k views

Can SQL Server and Mongo be used together?

We have a large news-oriented site that has high web traffic. The architecture is your often seen DB - Repo Layer - Services Layer - Asp.Net MVC. The problem that we've been seeing is around read ...
22
votes
2answers
2k views

NoSQL within SQL Server

This question is not about the difference between SQL and NoSQL. I am looking for some rationale for something that really does not make sense to me at the moment (maybe because of my lack of ...
1
vote
1answer
100 views

Likes / Stars / Following - same or separate data structures? [duplicate]

I am building a social network, which will have standard features of 'likes' (upvotes) for posts, 'following' between users and 'stars' for favorite posts. These might reasonably expand in the future ...
0
votes
1answer
53 views

Planning complex Mongo (And possibly other NoSQL) Databases

There is no "right way" to do anything, but there are "better" and "worse" ways, as well as true and tested ways. I'm studying Mongo and considering it for a project. It's gonna start small but ...
1
vote
1answer
53 views

Object Storage where Object Type is variable

From time to time, we come across a problem where we must store an object, but we don't know in advance what kind of object we're going to store. I'm going to give a very simple example. Requirement: ...
54
votes
8answers
34k views

When would someone use MongoDB (or similar) over a Relational DBMS?

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 ...
6
votes
7answers
462 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
70 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 ...
0
votes
3answers
289 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
139 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
vote
1answer
51 views

Looking for advice for the following MS SQL Schema

We currently have the following SQL Schema: Projects Budgets BudgetTabs BudgetSections BudgetTasks BudgetTaskDetails ...
3
votes
0answers
57 views

Economics of scaling, denormalizing NoSQL for personalized content

I am using Cassandra for a data intensive app. With relatively little operations and deployment experience, the expertise I am looking for is someone that can read the example below and decide whether ...
1
vote
1answer
193 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 = {}; ...
0
votes
0answers
32 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 ...
2
votes
2answers
258 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
142 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
216 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, ...
1
vote
1answer
119 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 ...
3
votes
3answers
249 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, ...
3
votes
0answers
167 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 ...
1
vote
1answer
176 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
209 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
196 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
575 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 ...
4
votes
2answers
299 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
147 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
116 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 ...
2
votes
2answers
2k 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 ...
1
vote
0answers
496 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 ...
1
vote
1answer
291 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 ...
0
votes
1answer
274 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
138 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
votes
1answer
212 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
130 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 ...
123
votes
13answers
57k 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 ...
8
votes
6answers
8k 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 ...
1
vote
2answers
297 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
2k 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 ...