The following rules apply to specifying a field name, authorization identifier, and table identifier in the import definition:

• Specify the item as 1 to 30 bytes (1 to 8 bytes for an authorization identifier).
• Only the following characters can be used (for an authorization identifier, only uppercase and lowercase letters and numeric characters are permitted):
  
  • Uppercase letters (A-Z, #, @, \)
  • Lowercase letters (a-z)
  • Numeric characters (0-9)
  • Kana characters
  • Underscore (_)
  • Space
  • Hyphen (-)
  • Double-byte characters
• You can mix single-byte and double-byte characters.
• The first character must be a single-byte uppercase letter, single-byte lowercase letter, single-byte kana character, or a double-byte character.
• You cannot specify the double-byte space character.
• If a specification item contains a single-byte space or a single-byte hyphen, you must enclose the entire item in double quotation marks (").