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Recap on Java Basics

Internet Shock — Tue, 09 Nov 2010 04:53:22 +0000

Java is an innovative programming language that has become the language of choice for programs that need to run-on a variety of different computer systems. First of all Java enables you to write small programs called applets. These are programs that you can embed in Internet web pages to provide some intelligence. Being able to [...]

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Recap on Java Basics

PC or Laptop Repair? Give It To The Experts

Internet Shock — Wed, 27 Oct 2010 01:55:57 +0000

Personal computers are, at once, horrendously complicated yet simpler than one might expect. How can this be? Computer professionals spend years working on computers, but never learning all there is to know. There’s just too much information for one human being to absorb in a lifetime, especially because the technology changes continually and there are [...]

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PC or Laptop Repair? Give It To The Experts

Don’t Hesitate to Seek IT and Computer Support

Internet Shock — Tue, 19 Oct 2010 03:42:05 +0000

We’ve heard from health experts that prevention is better than cure. Can it be true to computers and information technology? The truth is that computer systems have not been made with absolute perfection. IT is bound to falter in some ways. Your laptop, for instance, no matter how meticulous your care is, can go wrong. [...]

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Don’t Hesitate to Seek IT and Computer Support

Red Hat Linux: The X Window System

Internet Shock — Fri, 08 Oct 2010 03:53:05 +0000

The X Window System (www.x.org) was created in 1984 at the Massachusetts Institute of Technology (MIT) by researchers working on a distributed computing project and a campuswide distributed environment, called Project Athena. This system was not the first windowing software to run on a UNIX system, but it was the first to become widely available [...]

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Red Hat Linux: The X Window System

Hosting Feature of SQL Server

Internet Shock — Wed, 06 Oct 2010 03:54:47 +0000

If you are an SQL Server developer or database administrator, you might be inclined to use the new Common Language Runtime (CLR) hosting feature to write stored procedures in C# or Visual Basic .NET (or establish a company policy forbidding its use) without knowing how it works. But you should care. SQL Server is an [...]

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Hosting Feature of SQL Server

How Computers Communicate on a Network

Internet Shock — Wed, 08 Sep 2010 01:35:32 +0000

Let’s take a quick look at how computers communicate on a network. For computers to communicate on a network, there must be a network architecture in place that dictates how the data moves from one computer and then over the wire (on a cabled LAN) or wireless signal (on a WLAN). The most widely embraced [...]

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How Computers Communicate on a Network

What is Database Integrity

Internet Shock — Fri, 27 Aug 2010 01:24:14 +0000

Database Integrity The most general form of integrity constraint is the database constraint. Database constraints reference more than one relation: “A Customer is not allowed to have a status of ‘Preferred’ unless he or she has made a purchase in the last 12 months.” The majority of database constraints take this form. It’s always a [...]

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What is Database Integrity

Domain Integrity in Relational Database

Internet Shock — Fri, 23 Jul 2010 23:00:14 +0000

A domain is the set of all possible values for a given attribute. A domain integrity constraint—usually just called a domain constraint—is a rule that defines these legal values. It might, of course, be necessary to define more than one domain constraint to describe a domain completely. A domain isn’t the same thing as a [...]

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Domain Integrity in Relational Database

Three Ways to Classify a Relationship

Internet Shock — Tue, 20 Jul 2010 22:16:53 +0000

Some basic terminology applies to relationships. The entities that are related are called participants, and the number of participants in a relationship is its degree. The vast majority of relationships are binary, having two participants, but unary relationships (a relation that is related to itself) are also common, while ternary relationships (with three participants) are [...]

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Three Ways to Classify a Relationship

Understanding Database For Newbies

Internet Shock — Sun, 11 Jul 2010 22:35:20 +0000

Database terminology is almost as slippery as the term “object-oriented programming.” The word “database” can be used to describe everything from a single set of data, such as a telephone list, to a complex set of tools, such as SQL Server, and a whole lot in between. This lack of precision isn’t a bad thing, [...]

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Understanding Database For Newbies