So without an index your data is essentially stored on a chronological basis according to when it was entered into the system. Suppose you have a database of a million names, 50 of whom have the last name Smith and only 1 whose name is Joe Smith, but there are 100 other Joes with different … Read more

The compiler is what turns the words you type into optimized code the computer actually understands. The interpreter is the program on the computer that reads the code. The strength of Java is that, because it is interpreted, a program will reliably work the same on any "machine" that supports the Java specification that you … Read more

Like many things, one simple way to look it is who, what, when, where, and why.Who am I trying to reach? (hint: The more specific the audience the better)What do I want to tell them?When am I going to execute this campaign (hint: Plan way ahead)Where am I going to find the people I'm trying … Read more