quick tutorial in relational databases

quick tutorial in relational databases: Программирование: быстрое обучение реляционным базам данных

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Relational algebra — Not to be confused with Relation algebra. Relational algebra, an offshoot of first order logic (and of algebra of sets), deals with a set of finitary relations (see also relation (database)) that is closed under certain operators. These operators … Wikipedia
Web Ontology Language — OWL Web Ontology Language Current Status Published Year Started 2002 Editors Mike Dean, Guus Schreiber Base Standards Resource Description Framework, RDFS Domain Semantic Web A … Wikipedia
Core Data — Developer(s) Apple Inc. Stable release 3.2.0 Operating syst … Wikipedia
XForms — is an XML format for the specification of a data processing model for XML data and user interface(s) for the XML data, such as web forms. XForms was designed to be the next generation of HTML / XHTML forms, but is generic enough that it can also… … Wikipedia
SQL injection — A SQL injection is often used to attack the security of a website by inputting SQL statements in a web form to get a badly designed website in order to dump the database content to the attacker. SQL injection is a code injection technique that… … Wikipedia

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