manispatel005
BAN USERThis is an excerpt from K& R ---"C, like most languages, does not specify the order in which the operands of an operator are
evaluated. (The exceptions are &&, ||, ?:, and `,'.) For example, in a statement like
x = f() + g();
f may be evaluated before g or vice versa; thus if either f or g alters a variable on which the
other depends, x can depend on the order of evaluation. Intermediate results can be stored in
temporary variables to ensure a particular sequence."
Hence answer is compiler dependent.
2nd NF would avoid this redundancy.
In 2 NF, every non-key attribute is fully dependent on each candidate key of R . So the Relation gets broken down as :R1( Student ID, Student Addr) and R2(Student Id,Course).
So now to update address just update relation 1.
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Immutable objects can be modified by- a)Casting away constness >(Take "this" and cast it to a pointer of an object of cuurent type like((Y*)this)->i++) or by using mutable keyword inside class definition
- manispatel005 July 23, 2012