/// <privilege>http://tizen.org/privilege/account.read</privilege>
/// <feature>http://tizen.org/feature/account</feature>
/// <exception cref="InvalidOperationException">In case of any DB error.</exception>
/// <privilege>http://tizen.org/privilege/account.read</privilege>
/// <feature>http://tizen.org/feature/account</feature>
/// <exception cref="InvalidOperationException">In case of any DB error.</exception>