One of the most important things a database needs is a key, or more precisely a Primary Key. This is a unique identifier for a row and is needed to be able to access data in a table. In Core Data this is taken care of automatically, however you will have
Learn to crop and adjust photos, convert images to grayscale, create art cards, catalogs and more with easy to follow instructions. Purchase the CD and receive a login for the online forum THE PAINTER’S PLACE where you can interact with the author and o
The world of the semantic web, as based on RDF, is really simple at the base. This article shows you how to get started. It uses a simplified teaching language -- Notation 3 or N3 -- which is basically equivalent to RDF in its XML syntax, but easier to sc
What RSS is, how it can be used, how it came to be, how to use RSS syntax, how to make your first RSS document, Overview of the RSS <channel> element, overview of the RSS <item> element, how to publish your RSS doc, how to read other sites' RSS docs.
For complete beginners, this primer is fantastic for getting a sense of the big picture, for touring the territory, and becoming familiar with the key concepts, languages, and resources. W3Schools also offers a huge number of free tutorials (quite compre
W3Schools' Online Certification Program. The HTML Developer Certificate The HTML Developer Certificate is for developers who want to document their knowledge of HTML 4.01, XHTML, and CSS. The ASP Developer Certificate is for developers who want to docum
At W3Schools you will find all the Web-building tutorials you need, from basic HTML and XHTML to advanced XML, SQL, Database, Multimedia and WAP. Our references cover all Web-building technologies, including W3C standards like HTML, XHTML, CSS, XML and ot
The Semantic Web = a Web with a meaning. "If HTML and the Web made all the online documents look like one huge book, RDF, schema, and inference languages will make all the data in the world look like one huge database" --Tim Berners-Lee, Weaving the We
"OK, but how do I actually make web pages and publish them as a site?" We'll learn: how to create HTML pages with a text editor; bare bones of HTML page structure; how to save pages; how to link pages; how to upload pages to a live web server...
Web Design from Scratch is for everyone involved or interested in creating web sites - whether novice or expert. It will help you understand what makes web sites succeed or fail, and what can be done to increase the chance of success. You don't have t