Nothing. If you SELECT data from a database, and add an ORDER BY clause, it just affects the ordering of the data that is returned to the user, but the data in the database remains unaltered.
Answer:
The answer to this question is given below is the explanation section.
Explanation:
"A" option is correct
It helps the router know where to send the packet.
Answer:
A generalized class used only to create related derived classes
Explanation:
An abstract class is a class which cannot be instantiated on its own. It is defined using an abstract keyword. However, an abstract class can be inherited from and the derived class can actually be instantiated. For example:
abstract class A{
}
class B extends A{
void test(){
}
}
Here class A is an abstract class, while class B inherits from A. Now we can create an instance of class B as follows:
B b = new B();
b.test();
The answer would be next page, continuous, even page, and odd page.
Answer:
Setting up and maintaining the online systems can be expensive
Explanation:
