Origin of the name Roxanne: From the Greek RoxanÄ, which is believed to be derived from the Persian Roschana (dawn of day).The name was borne by the Bactrian wife of Alexander the Great, which seems to substantiate the name's roots. From A World of Baby Names by Teresa Norman.Buy the book.rom the Greek RoxanÄ, which is believed to be derived from the Persian Roschana (dawn of day). The name was borne by the Bactrian wife of Alexander the Great, which seems to substantiate the name's roots.
Making the world better, one answer at a time. Yes, the primary key is a field that uniquely identifies each record. The ANSI SQL Standard defines the primary keys through the PK restraint. Yes, the primary key is a field that uniquely identifies each record. The ANSI SQL Standard defines the primary keys through the PK restraint.
A set is a collection of distinct, symbols in ordered objects. Sets are typically collections of numbers, though a set may contain any type of data (including other sets).The objects in a set are called the members of the set or the elements of the set.A set should satisfy the following: 1) The members of the set should be distinct. If A and B are two sets, then difference of A and B is the set A-B consisting of all the elements which are elements of A but are not elements of B. 2  Complement of a set A, written as A' or A C is the set consisting of all the elements of which do not belong to A. 3  Thus A' = {x | x and xA}.