Determining what database product best fits the requirements and limitations in a specific situation. This is advice that generally requires much more insight into requirements than can easily be gleaned on a Q&A forum such as StackExchange.

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1answer
79 views

Use Database to Store Data Extracted From Internet

I'm mining 500 million users, and their "followers" from a social network using their API. The extraction of data itself is not a problem, since I can do it with my scripts. However having 500 million ...
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3answers
125 views

in-memory SQL database system [closed]

In an application, I am using mysql's TEMPORARY TABLE. Since this application does not need permanent tables, I wonder if I can find an alternative RDMS designed for memory tables. I hope to find an ...
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0answers
31 views

What database to use for easily handling join-like queries on multiple very large tables? [closed]

I'm currently looking for a database engine than can easily handle queries on multiple collections/tables (at least 5) with aprox 10M entries each. Any advice on what to use?
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1answer
68 views

Two types of data, so two type of databases?

For a social network site, I need to propose a DB. The application is written in Java & will be hosted on VPS(s) initially. Broadly classified there is two type of data to be stored at backend: ...
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1answer
127 views

Handling or preventing conflicts in a multi-user system

I have a web application that is accessed by multiple users from different locations worldwide. Let's say I have an "edit" form for a specific document and two (or more) users are editing the document ...
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1answer
75 views

Is PostgreSQL appropriate for processing this large but simple dataset? [closed]

I have a dataset I'm not sure how to store. The structure is simple: 30 numeric attributes identified by about 15 billion x, y, and t values. We're expecting ~17k t values and maybe 90k x/y ...
0
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1answer
106 views

Suitable database software for small business [closed]

First of all, I apologise if this is in the wrong area. I'm looking for a suitable database program for a small engineering business, which needs to log various jobs. Currently, we're just using an ...
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1answer
115 views

recommendations needed in order to become a junior DBA [closed]

I want to start off work being a junior DBA very soon. At the moment I have a Bsc in ICT 2:2 but my database marks was very strong including an 86 in my oracle assessment which is following a ...
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0answers
525 views

which role-permission database design?

I want to manage roles and permissions. Most of designs on web look like this tables: Users Roles UserRoles Permissions RolePermissions Here, what is permissions? I am thinking for such a design ...
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0answers
134 views

What are reasonable options for an in-memory multi-core database?

I'm going to preface this with pointing out that I only need somewhat persistent data. The purpose of this database platform would be to support statistical analysis in R. I usually build my tables ...
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1answer
92 views

Should database files be on different disk(s) than OS?

My very short overview SQL Server databases are installed as virtual machines on VMWare, there are plugged a few disk areas with the same (or very similair) parameters versions are SQL Server ...
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1answer
205 views

Switching to NoSQL for native JSON use?

I am rather comfortable writing concrete schemas with explicit primary keys, foreign keys, indexes, views and stored procedures. For queuing I use a NoSQL solution called: Redis. Recently I heard a ...
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3answers
614 views

Relational vs Non-Relational Database for Events Database

I'm trying to find out whether an SQL or no-SQL solution would be better for creating an events database. I'm creating a ticketing system, similar to ticket master. I know that for either ...
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1answer
97 views

Approach for a 2,000 table migration

What might be the best approach when converting or migrating a database containing over 2,000 tables? Where would you begin to tackle such an issue? Steps to take in the first weeks of designing? ...
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2answers
141 views

mySQL- large database

I need guideline to setup DBMS(MYSQL or SQL Server 2008). The database size is expected upto 80-100GB in next few months. One main table will contain textual content like essays. Can MySQL handle such ...
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1answer
420 views

good practices of creating tables in mysql [closed]

Hi I was thinking of developing an web apllication using php and mysql. Application will give a professor the required data about the student. i want to design application considering Engineering ...
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1answer
88 views

Database theories possible topics to research through [closed]

I need to conduct a research on database theories. I want to know what possible questions should I research on which is believed to be suitable when researching database topics for a online assessment ...
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0answers
116 views

Real Time data collection - Help select Database

My Scenario: I want to collect data from various sensors[for now I have 600 sensors sending data, but this may have to scale up to 3000 more data sensors, all sensors send real time data] Now I have ...
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1answer
188 views

How can I move 5 GB data from one database to another faster?

I'm using MySQL as database with Windows server. I'm having 5 GB of data in database. Now I need to change my server and the question is that how can I transfer complete 5 GB data to one mysql ...
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0answers
99 views

Digital asset management

I'm working in a company that currently develops Media Asset Management system and now we want to improve our system for document files. I have to search nearly thousand .doc and .pdf files and index ...
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1answer
96 views

Which database is designed for storing and incrementing values?

We're trying to build a stats server that stores visits for each document on a section for a specific date, so we need a table that has the following parameters: documentID sectionID date visits ...
2
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2answers
1k views

Should I create a separate user table for different web products within the same platform?

We have a web product for young professional that gives them the possibility to create their page to show their professional identity. So a table users that has both information about the user (email, ...
4
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2answers
96 views

Which database type to use

I want to implement database for following application:- User creates task and assigns to other user who can furthur split it into subtasks and assign it to other users.creaking a tree like ...
2
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2answers
3k views

NoSQL, CouchDB vs. CouchBase, What should i do?

I started to encounter some issues on my production site, when having a web page that needs to load a very big ResultSet (currently coming from relational database, MySQL) it takes forever, and ...
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1answer
161 views

What platform for a large record based mathematical database?

Hi I am a civil engineer with some experience of programming but I am not familiar with the vast range of options available today. Hope you could give me any pointers the best way to proceed. I want ...
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1answer
140 views

Database suitable for data mining

What would be an appropriate / suitable database sans Oracle that would be suitable for the following conditions? data mining includes but does not limit to the following: a. clicking on links b. ...
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1answer
86 views

Looking for a scalable relational database [closed]

I'm looking for a database that achieves the following: fully ACID. relational with joins. has transactions. allows the administrator to specify sharding rules (for example: users from Europe should ...
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2answers
131 views

Small Cloud Database

I'm researching the best way to do the following but haven't been able to come up with anything. I'm trying to build a small (probably 3 or so tables with at most 200 records each) relational ...
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1answer
160 views

is it reasonable to use NoSQL for my project

Imagine you want to write a webapp for selling your car online. A car has a lot of attributes. Like how many doors, color, aircondition, etc. Some of them are simple boolean values, others might need ...
2
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1answer
172 views

Which database to use? [closed]

Hey there. I am looking for a free to use for commercial website database that should have these design features, in the given order: Auto-Sharding (getting more free space by adding more server ...
2
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1answer
383 views

SQLite or CouchDB for Locational Data Mining Project?

I am currently designing a Data Mining Project where I am going to harvest rather large volumes of Twitter data in order to analyse locational data (geocoded tweets) and do some machine learning with ...
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1answer
253 views

Simple online collaborative database for many users to add and query… does it exist? [closed]

:) I'm looking to create a VERY simple database that people can subscribe to for a nominal monthly fee... no relational/pivot tables, no complicated expressions, etc... just an easy form of a couple ...
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3answers
352 views

Which RDBMS has the most advanced “table-valued” functions?

Every Database Management System focuses on specific features and applications. I am using mysql, probably as it is popular and satisfies common needs. However, I came across a problem, which needs ...
2
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2answers
225 views

Database structure for a system with multisite

The system I'm working is structured as below. Given that I'm planning to use Joomla as the base. a(www.a.com),b(www.b.com),c(www.c.com) are search portals which allows user to to search for ...
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1answer
529 views

Keep total transaction in invoice application

I want to make an application called as Invoice Application with MySQL database. Now I have designed this database. Now I want to know is this database good for Invoice Application. I will use MySQL ...
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2answers
544 views

Save history editable data RDBMS

I want to make application like testing system. Every question has one or many variant of answers (and one or many can be right). I apologize that tutors and students use my testing system. It means ...
4
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3answers
247 views

Storing date increments in tables

I'm working on a ASP/MS SQL project that performs a lot of calculations based on dates and time. In one case, the system will lookup a value based on the nearest half hour increment throughout the ...
6
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4answers
4k views

Is there a tool to check if my database is normalized to the third normal form?

I learned about normalization recently, and understand how important it is when implementing a new schema. How can I check if my database is 2NF or 3NF compliant ? Manual review is a sure option, ...
3
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1answer
369 views

Curious Database building Problem (ER Diagram)

I am trying to build an EER Model for a Autostore that has 5 locations and offers a range of auto products. They offer car repairs and roadworthy tests as a service also. I need to be able to make ...
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3answers
2k views

Is there any benefit to defragmenting SQL indexes in a SAN environment?

Our SQL server lives on a SAN. It contains dozens of OLTP databases, some with several tables containing over 1m records. We have been running Ola Hallengren's index maintenance scripts weekly, and ...
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2answers
569 views

Database design experienced view

I want to make a database that stores countries, their respective states, and cities. I am confused how to normalize these. Can anyone help? My ideas: Table 1 Countries (id pk, name , code) ...
3
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3answers
245 views

Is this database fine for calculation?

I am doing an application called as Invoice Application.For that I have my database is like this. Now my problem comes when I am taking the tax part in my database.As I have made tax as an option ...
2
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2answers
5k views

Local database vs Amazon RDS

I am doing large INSERT into a local MySQL database I am at 2,000,000 rows and am really starting to notice the slowdown now. I always heard that MySQL wasn't very scalable I expect this database to ...
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4answers
275 views

Are there any in-memory hybrid databases available?

I am looking for a database that is - Relational (Not NoSQL). Has an in-memory store. Has disk-based backing storage. I want to set up a system where entire contents of the disk are replicated in ...
3
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1answer
427 views

NuoDB with Amazon S3

I think about developing my new mobile and web app against NuoDB. I believe in their technology. The thing that I care the most is backup and restore in case of data corruption and read / write speed ...
2
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0answers
271 views

SQL Server SSIS issue retrieve data when i enter into login of server side?

can any one try solve my problem here i am facing a problem Failed to retrieve data when i enter into login of server side here is the error message TITLE: Microsoft SQL Server Management Studio ...
2
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0answers
363 views

How to do automated archiving for a SQL Server database based on interpretation of database metadata?

I am looking for a solution giving me automated archiving of SQL Server databases based on a smart interpretation of table relationships that is able to archive records from related tables minimizing ...
2
votes
1answer
176 views

Which database?

We have to launch a new service in my company with a big database. And I currently don't have that much knowledge. We did a small preview of the service and our biggest table had more than 2 100 000 ...
2
votes
4answers
900 views

One table with many rows or many tables with a few rows

I'm having a question rounding my mind. It's better to create one table and store a lot of rows there or create various tables and have a few rows on them? What's the performance and the I/O saved at ...
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1answer
357 views

which database engine is best for full text search on a 10M rows table?

I'm creating a search engine and needs to search keywords in a text field (about 300 words in each text field, unstructured). I'm thinking about noSQL\MySQL+Sphinx, the performance impact here is ...