A database is a large collection of data organized specially for rapid search and retrieval. It is a systematically arranged collection of computer data, structured so that it can be automatically retrieved or manipulated. It is a repository for information or data.
Data Management is a process by which data is managed. This may include compilation, storage, safeguarding, listing, organization, extraction, retrieval, manipulation, and dissemination of data. In its strictest sense, data may be defined only as the raw numbers for numeric or quantitative data (or descriptions, in the case of qualitative data), either in time-series format (data covering observations over specific periods of time), cross-sectional format (data consisting of a number of observations taken at a specific point in time or about a specific event or phenomenon without regard to its behavior over time), or a combination of these two. Information, on the other hand, deals more specifically with the manipulation, re-organization, analysis, graphing, charting, and presentation of data for specific management and decision-making purposes.
Database Design and Modeling Fundamentals (Basic)
This article covers the basics of database design including normalization, relationships and cardinality. A great tutorial on database design.
http://www.sqlteam.com/item.asp?ItemID=122
What you need to know about databases (Basic and Intermediate)
· Microsoft Access Fundamentals
· Database Career Resources
· Database Glossary
· SQL Fundamentals
· Data Mining Resources
http://www.databases.about.com/
Database Knowledge Base (Intermediate and advance)
What's Inside…
45 Database discussion groups with 84,492 active members
87,449 Searchable Q&A messages
187 Current Database news items
2,431 Database docs and code
2 Database newsletters
2 Database daily alerts
And much more
http://database.ittoolbox.com/default2.asp
Why You Need Database Normalization (Intermediate and advance)
Database normalization, or data normalization, is a technique to organize the contents of the tables for transactional databases and data warehouses. Normalization is part of successful database design; without normalization, database systems can be inaccurate, slow, and inefficient, and they might not produce the data you expect. See the following URL for more
http://www.sqlmag.com/Articles/Index.cfm?ArticleID=4887&pg=1
Database Knowledge Base (Intermediate and advance)
45 Database discussion groups with 84,492 active members
87,449 Searchable Q&A messages
187 Current Database news items
2,431 Database docs and code
2 Database newsletters
2 Database daily alerts
And much more
http://database.ittoolbox.com/default2.asp
Fundamentals of SQL (Biginners)You can find a general tutorial on SQL
http://www.firstsql.com/tutor.htm
SQL Server ( Intermediate and advance )
If your are looking for topics about SQL Server this website will be useful thought few of them may not be accessible for non-members.
All topics are alphabetically ordered
http://www.sqlmag.com/Articles/Index.cfm?Action=Topic
ASP.Net Learning Site ( Basic and Intermediate )
On this page you will find dozens of videos designed for all ASP.NET developers, from the novice to the professional. If you are new to ASP.NET, you can learn the basics of how to create dynamic web applications with ASP.NET 2.0 and Visual Web Developer 2005 Express Edition, using either Visual Basic or C#. If you have a bit of development experience, you will learn how to employ some of the great new features introduced in ASP.NET 2.0.
http://www.asp.net/learn/videos/default.aspx?tabid=63
Visual Basics for Beginners (Basic)VB Explorer… the award winning site for the novice VB programmers to learn Visual Basic.
The site features tutorials, source codes you can download, tips and tricks and even a forum where you can talk with other programmers.
http://www.vbexplorer.com/VBExplorer/VBExplorer.asp
Experts Exchange For Your IT solutions (Intermediate and advance )
This website is the most powerful IT resource channel in the world. Access instant solutions for your most demanding IT problems. The vast IT library puts more IT information at your fingertips. You are moments away from finding your solution.
http://www1.experts-exchange.com/