Database

Facebook Twitter
Database Revolution; Future of Information Publishing
Extract, transform, load In computing, extract, transform, and load (ETL) refers to a process in database usage and especially in data warehousing that: Extracts data from outside sourcesTransforms it to fit operational needs, which can include quality levelsLoads it into the end target (database, more specifically, operational data store, data mart, or data warehouse) ETL systems are commonly used to integrate data from multiple applications, typically developed and supported by different vendors or hosted on separate computer hardware. The disparate systems containing the original data are frequently managed and operated by different employees. For example a cost accounting system may combine data from payroll, sales and purchasing. Extract, transform, load
Neo4j

0830 - Cypher and Neo4j on Vimeo
NOTE: This post is quite outdated, stuff has changed since i wrote this. While you can somewhat safely ignore the alterations for increased address space of entities, the Property store has changed in a fundamental way. Please find the new implementation here. Ah, the physical layer! Storing bits and bytes on spinning metal, away from the security and comfort of objects and high-level abstractions. This is the realization of any database system, the sole purpose for which it is build. Neo4j Internals: File Storage Neo4j Internals: File Storage
InfiniteGraph
Atomic Wiki Higher-order functions are probably the most notable addition to the XQuery language in version 3.0 of the specification . While it may take some time to understand their full impact, higher-order functions certainly open a wide range of new possibilities, and are a key feature in all functional languages. As of April 2012, eXist-db completely supports higher-order functions, including features like inline functions, closures and partial function application. This article will quickly walk through each feature before we put them all together in a practical example. A higher-order function is a function which takes another function as parameter or returns a function. Atomic Wiki
Using A Graph Database To Power The “Web of Things” Bio Rick Bullotta is the co-founder and CTO of ThingWorx, a pioneer in the emerging field of real-world aware applications. Mr. Bullotta was previously CTO at Invensys Wonderware, and VP with SAP Research. Emil Eifrem is CEO of Neo Technology and co-founder of the Neo4j project. Using A Graph Database To Power The “Web of Things”
PyTables is a package for managing hierarchical datasets and designed to efficiently and easily cope with extremely large amounts of data. You can download PyTables and use it for free. You can access documentation, some examples of use and presentations in the HowToUse section. PyTables is built on top of the HDF5 library, using the Python language and the NumPy package.

Getting the most *out* of your data

Getting the most *out* of your data
www.iacis.org/iis/2009_iis/pdf/p2009_1301.pdf www.iacis.org/iis/2009_iis/pdf/p2009_1301.pdf Welcome to IACIS! Vision Statement: Our vision is to be one of the leading international academic information systems and technology professional organizations. Mission Statement: We value activities that develop the knowledge and skills of information systems and technology academics, by providing a forum for networking and discussing research ideas and findings, encouraging the sharing of teaching best practices, and supporting the development of high quality curriculum. The International Association for Computer Information Systems (IACIS) is a nonprofit association founded in 1960 and dedicated to the improvement of information systems and the education of information systems and computer professionals. These goals are accomplished through various activities, recognition awards, and publications.
AllegroGraph News November, 2013 In this issue Free Webcast: Augmenting Hadoop for Graph Analytics AllegroGraph News August 2011 AllegroGraph News August 2011
Gremlin is a graph traversal language. The documentation herein will provide all the information necessary to understand how to use Gremlin for graph query, analysis, and manipulation. Gremlin works over those graph databases/frameworks that implement the Blueprints property graph data model. Gremlin is a style of graph traversal that can be used in various JVM languages. This distribution of Gremlin provides support for Java and Groovy.

Gremlin

Gremlin

Orient Technologies - Open source solutions built around the Orient DB

Multi-Model Imagine a product with the flexibility of a Document Database and the ability to express relationships like a Graph Database. This is OrientDB. OrientDB supports HTTP and JSON out-of-the-box. You can start using OrientDB from curl or even your Web Browser. Read more about HTTP REST and JSON API. Orient Technologies - Open source solutions built around the Orient DB
high-performance graph database, data deduplication and bibliographic exploration high-performance graph database, data deduplication and bibliographic exploration Evaluation license Evaluate Sparksee for free downloading the evaluation version right now. The evaluation license provided has the following configuration:
orient - NoSQL document database light, portable and fast. Supports ACID Tx, Indexes, asynch queries, SQL layer, clustering, etc
Objectivity
HyperGraphDB is a general purpose, open-source data storage mechanism based on a powerful knowledge management formalism known as directed hypergraphs. While a persistent memory model designed mostly for knowledge management, AI and semantic web projects, it can also be used as an embedded object-oriented database for Java projects of all sizes. Or a graph database. A Graph Database
“The ODBMS.ORG portal is a mission-critical resource for any serious 21st century software professional. It is indispensable, and a key element in promoting state-of-the-art software craftsmanship.” –Philippe Kahn, Technology Innovator and Entrepreneur. ODBMS.ORG in 2014 A Wealth of Supporters Starts 2014!

ODBMS.ORG :: Object Database (ODBMS) | Object-Oriented Database (OODBMS) | Free Resource Portal

The context data model combines features of all the above models. It can be considered as a collection of object-oriented, network and semistructured models or as some kind of object database. In other words this is a flexible model, you can use any type of database structure depending on task. Such data model has been implemented in DBMS ConteXt. The fundamental unit of information storage of ConteXt is a CLASS. Database Models: Hierarcical, Network, Relational, Object-Oriented, Semistructured, Associative and Context.
UML logo The Unified Modeling Language (UML) is a general-purpose modeling language in the field of software engineering. The basic level provides a set of graphic notation techniques to create visual models of object-oriented software-intensive systems. Higher levels cover process-oriented views of a system. It was developed by Grady Booch, Ivar Jacobson and James Rumbaugh at Rational Software in the 1990s.[1] It was adopted by the Object Management Group (OMG) in 1997, and has been managed by this organization ever since. In 2000 the Unified Modeling Language was accepted by the International Organization for Standardization (ISO) as a standard for modeling software-intensive systems.

Unified Modeling Language

Associative model of data
Entity-relationship model
NoSQL is What? | Jeremy Zawodny's blog
Thomas Neumann: D5: Databases and Information Systems (Max-Planck-Institut für Informatik)