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A database is an organized collection of data. The term originated within the computer industry, but its meaning has been broadened by popular use, to the extent that the European Database Directive (which creates intellectual property rights for databases) includes non-electronic databases within its definition. This article is confined to a more technical use of the term; though even amongst computing professionals, some attach a much wider meaning to the word than others.
One possible definition is that a database is a collection of records stored in a computer in a systematic way, so that a computer program can consult it to answer questions. For better retrieval and sorting, each record is usually organized as a set of data elements (facts). The items retrieved in answer to queries become information that can be used to make decisions. The computer program used to manage and query a database is known as a database management system (DBMS). The properties and design of database systems are included in the study of information science.
The central concept of a database is that of a collection of records, or pieces of knowledge. Typically, for a given database, there is a structural description of the type of facts held in that database: this description is known as a schema. The schema describes the objects that are represented in the database, and the relationships among them. There are a number of different ways of organizing a schema, that is, of modeling the database structure: these are known as database models (or data models). The model in most common use today is the relational model, which in layman's terms represents all information in the form of multiple related tables each consisting of rows and columns (the true definition uses mathematical terminology). This model represents relationships by the use of values common to more than one table. Other models such as the hierarchical model and the network model use a more explicit representation of relationships.
More on [ Database ]
@hikarine3 Thanks again for reporting the problem. My bug is in the database - I'm only allowing 255 bytes for the tweet text. Will fix.
timhaines (Tim Haines) Sat, 07 Nov 2009 02:37:44 -0000
@hikarine3 Thanks again for reporting the problem. My bug is in the database - I'm only allowing 255 bytes for the tweet text. Will fix.
Picture Management 0.2.0 (GPL): Add, tag and save in xml database or directly into the picture in XMP format http://bit.ly/YhNMd
abhi_24_88 (abhishek kumar) Sat, 07 Nov 2009 02:37:24 -0000
Picture Management 0.2.0 (GPL): Add, tag and save in xml database or directly into the picture in XMP format http://bit.ly/YhNMd
Site is coming back up slowly! We just cleaned some major cobwebs, basically just gave our database a much needed shower.
vidly (Vidly) Sat, 07 Nov 2009 02:35:51 -0000
Site is coming back up slowly! We just cleaned some major cobwebs, basically just gave our database a much needed shower.
Hiring a Database Administrator - BlackBerry Service Technology at Research In Motion (Be.. http://bit.ly/4vVINl #jobs #shjobs
DBAJobsSEA (Database Jobs) Sat, 07 Nov 2009 02:34:56 -0000
Hiring a Database Administrator - BlackBerry Service Technology at Research In Motion (Be.. http://bit.ly/4vVINl #jobs #shjobs
Database Access With Visual Basic R .net 3rd Edition : Database Access with Visual Basic(R) .NET (3rd Edition.. http://bit.ly/k1bdJ
missdownloads (Miss Downloads) Sat, 07 Nov 2009 02:34:55 -0000
Database Access With Visual Basic R .net 3rd Edition : Database Access with Visual Basic(R) .NET (3rd Edition.. http://bit.ly/k1bdJ
Database Administrator - Fast Switch - Columbus, OH http://bit.ly/4CdLHh
JobsTwitt (Jobs Twitt) Sat, 07 Nov 2009 02:32:57 -0000
Database Administrator - Fast Switch - Columbus, OH http://bit.ly/4CdLHh
CHED - A chemical structure databases software for organic chemical databases including spectroscopic information.
Meta Description: [ chemical inventory software for every laboratory, network ready, free demo ]
CHEMATIX - Chemical inventory management and tracking Java-based software.
Meta Description: [ CHEMATIX™ - the full-spectrum chemical management solution designed to meet the specific requirements and responsibilities of scientists, researchers, regulatory officials and administrators in education, government and industry. CHEMATIX ™ is the foundation of our comprehensive Environmental... ]
ChemBase - Free Windows database software for tracking a labs chemical inventory.
Chemical Information System (CIS) - Combines 33 databases from sources such as EPA, NIOSH, NCI, NIH, and the US National Library of Medicine, covering the pharmacological, biochemical, physiological, and toxicological effects of drugs, environment pollutants, and other chemicals.
Chemical Inventory System - CISPRO 2000 chemical and supply tracking software.
Meta Description: [ Chemical Inventory System Pro is a chemical management and tracking database software system designed for chemical and biochemical laboratory supply management, reporting compliance, usage and tracking of chemical waste disposals. ]
Chemoventory - Web based chemical inventory software with bar coding, MSDS management, and automated emails. Uses PHP and MySQL.
Meta Description: [ Web based chemical inventory software, MSDS management, 21CFR complaint ]
CHEMPAK - Pre-defined properties database of over 640 compounds.
ChemStor - Database searching facility using item number, chemical name, CAS, formula, keywords, and molecular structure.
Meta Description: [ Molecular Inventory Systems ]
Data Aspects' Corp - Chemical lab: sample, test and results software.
Introductory Guide to Chemical Database Systems - Background notes describing a common technique used to index chemical structure information within modern (O)RDBMS systems. Discusses Oracle cartridges and subgraph isomorphism.
SilverPlatter Information, Inc. - Platform-independent access to bibliographic and live full text databases for academic, biomedical and scientific research.
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