Attribute names are case-sensitive: ‘Width’ and ‘width’ are two different attributes.

Note though that it is not possible to have two attributes of the same object whose names differ only by case – it is not possible to have both the attributes ‘Width’ and ‘width’ defined for the same object.

Certain restrictions apply to the attribute names:

•Name must start with a letter.

•Name must contain only letters, digits and the ‘_’ (underscore) characters

•Name cannot exceed a maximum length. This maximum length is in most cases 26 characters, but it can be lower for attributes whose value is stored in an auxiliary database table – see below for details.

See also

Defining object type descriptive and short names