Variables in a synonym can have the following attributes:

VARIABLE

The name of the variable. A double ampersand (&&) is automatically inserted in the name to indicate a global variable.

DEFAULT

The default value for the variable. If no value is set, the SET value is used.

QUOTED

When selected, single quotation marks are added around the assigned string for the variable. A single quotation mark within the string is converted into two single quotation marks.