Although it is not possible to rotate a database field in FileMaker Pro or ClarisWorks, there is a font available called TomatoRolledLeft and TomatoRolledRight that will often produce acceptable results. The characters in these fonts are rotated (left or right as indicated by the name). To use these fonts, enter returns between each character. It is also possible to use a calculation to enter returns between each letter in a field. The following calculation will add returns between the first 5 characters in a field. The calculation can be expanded to handle longer values.
Replace(Replace(Replace(Replace(Field,5,0,"¦"),4,0,"¦"),3,0,"¦"),2,0,"¦")
Both fonts are available in the Software Library areas of online services, or on the Internet via the ftp archives.