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Using String Functions

String functions help you work with text data. For instance, you might want to replace one string with another or you might need to determine whether a string contains a specific character or a set of characters. In this case, and more, you’ll rely on many of the string functions reviewed in this section.

The Asc Function

Oddly enough, string characters can be represented by an integer value, which can come in handy occasionally. What you’re really working with are American National Standards Institute (ANSI) and American Standard Code for Information Interchange (ASCII) codes. When you need to work with that integer value, use the Asc function using the form


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