I do not believe there is such a function in JMP, but it is very simple to create one
Names Default To Here( 1 );
uniqueRandomInteger = Function( {n, min, max},
{defaultlocal},
hold = [];
For( i = 1, i <= n, i++,
val = Random Integer( min, max );
While( N Rows( Loc( hold, val ) ) > 0,
val = Random Integer( min, max )
);
hold = hold |/ Matrix( val );
);
hold;
);
x=uniqueRandomInteger(10,100,200)
Jim