1Keydata.com offers free online programming tutorials and information on data warehousing. Please visit the following sites:

SQL Tutorial: SQL stands for Structural Query Language, and is the language for accessing data stored in relational databases. This tutorial teaches beginners the basic building blocks of SQL. Other Languages: Traditional Chinese   Simplified Chinese   Dutch   French   German   Italian   Japanese   Korean   Portuguese   Spanish

Data Warehousing and Business Intelligence: Information on business intelligence tools and the steps needed for a successful data warehousing project.

HTML Codes Tutorial: An HTML tutorial site aimed to teach beginners the building blocks of HTML through examples.

CSS Tutorial: CSS (Cascading Style Sheet) is the presentation layer of a web page. This tutorial aims to help beginners learn the basic concepts in CSS. Other Languages: Traditional Chinese   German

PHP Tutorial: PHP is a server-side scripting language. This tutorial helps beginners learn the essential building blocks of PHP.

Database Normalization: Normalization is an important concept in database design. This tutorial discusses the common forms of normalization.