String Data Type
There are two kinds of strings:
Variable-length strings, which can contain up to approximately 65,500 characters. Because some storage overhead is required, a string can't actually be 64K long.
Fixed-length strings, which contain a declared number of characters (less than 64K).
The type-declaration character The codes for String characters range from 0 to 255. String characters used by all applications designed for Microsoft Windows consist of ANSI characters. The first 128 characters (0-127) correspond to the letters and symbols on a standard U.S. keyboard. These first 128 characters are the same as those defined by the ASCII character set. The second 128 characters (128-255) represent special characters, such as letters in international alphabets, accents, currency symbols, and fractions. for a String is $ (ANSI character 36).
Variant Data Type
Visual Basic Data Types