The UNIQUE= statement specifies whether unique
SAS variable names should be generated for items. The UNIQUE= statement can be used only when
creating a
view descriptor.
The default value, N, enables you to enter duplicate SAS variable names. You must
resolve these duplicate names before you create view descriptors
based on the
access descriptor.
If you specify a value of Y and duplicate SAS variable names exist, numbers are appended
to any SAS names that are duplicated as the result
of truncation. For example, if you enter a value of Y for the UNIQUE= statement,
two instances of the item ADDRESS would be changed to ADDRESS and ADDRESS0.
Note: If you specified a value
of Y for the ASSIGN= statement when you created the access descriptor
on which this view descriptor is based, you cannot specify a UNIQUE=
statement.