Technology Questions

Testing an executable application for portability across system platforms and environments, usually for conformation to an ABI specification.

Scope resolution operator allows a program to reference an identifier in the global scope that is hidden by another identifier with the same name in the local scope.

Static (embedded) SQL:

1.In static SQL how database will be accessed is predetermined in the embedded SQL statement.

2.It is more swift and efficient.

3.SQL statements are compiled at compile time.

4.Parsing, validation, optimization, and generation of application plan are done at compile time.

5.It is generally used for situations where data is distributed uniformly.

6.EXECUTE IMMEDIATE, EXECUTE and PREPARE statements are not used.

7. It is less flexible 

Dynamic (interactive) SQL:

1.In dynamic SQL, how database will be accessed is determined at run time.

2.It is less swift and efficient.

3.SQL statements are compiled at run time.

4.Parsing, validation, optimization, and generation of application plan are done at run time.

5.It is generally used for situations where data is distributed non-uniformly.

6.EXECUTE IMMEDIATE, EXECUTE and PREPARE statements are used.

7.It is more flexible.

A is wrong because a class can extend nly one class .B is wrong because a class can implement any number of interfaces.C is wronb because both can can be done simulteneously.So, D is correct

CEDA 

use super keyword.

super keyword points immediate super class.

Class Sample {

int a =23;

 }

Class Sub extends Sample { 

 String a = "bablu";

 void show() {

 System.out.println(a); //bablu

 System. out. println(this.a); //bablu

 System. out.println(super.a); //23

}

}

Class Demo {

Public static void main(string[] args) {

sub s = new Sub();

s.show();

}

}

The main aim of the namespace is to understand the logical units of the program and to make the program so robust.