[Modeling-users] UNIQUE columns

[James L. <ja...@gm...>]

Hello,

Is there a method for tagging a column as UNIQUE so that multiple
copies cannot be inserted into the database?  I do not see a isUnique
property in any of the attributes.  Am I looking in the wrong place or
is there an alternative way to define this?  Is this simply a method
of defining multiple primaryKeys for an entity (although that does not
appear to be valid)?

Thank you,
James Laska