XSDLength

Restrict the length of the data to the exact number of XML characters allowed when set on a 4GL STRING, VARCHAR, CHAR or TEXT, or the number of bytes allowed when set on a 4GL BYTE.

Note:

XSDMinLength and XSDMaxLength can be used together, but XSDMaxLength value must be greater then XSDMinLength
XSDMaxLength cannot be used with XSDLength

DEFINE myStr STRING ATTRIBUTE(XSDString, XSDLength="12",
  XMLName="MyString")

DEFINE myByte BYTE ATTRIBUTE(XSDBase64Binary, XSDLength="8000",
  XMLName="MyPicture")