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Archive of posts tagged Data Types

The Value Of Relational Databases: A Case Study

Recently asked on Yahoo! Answers: SQL / Access query? I have a 1-table client database which, as well as all the usual name / address info, includes client ‘˜visit’™ fields. Each client may have between 1 and 5 visits per week (Mon to Fri) and each visit can be at a different time, duration and [...]

Objects (Classes) Explained In Very Simple Terms

One of the most common questions on Yahoo! Answers is how classes or objects, or the parts of a class / object, such as properties, methods and events, work. Here’s a gross simplification of how classes and objects work. Most of this is lifted from a previous blog entry, Interpreting A C# Class Code Structure. [...]

Variable Scope Made Simple

Recently asked on Yahoo! Answers: What does this statement mean? “Local variables are local to a function or a procedure.”? What it means, in a nutshell, is if you declare a variable inside a function or procedure, you cannot get the value of that variable from outside that function or procedure.