Tag: programming languages

A table has following 2 columns with the given valuesc1 c2 -------------- 1 1 1 NULL 2 0 NULL NULL . What will be the output of the following query :select count(*) , count (c1+c2) , count (distinct (c1 + c2)) from temp;

SELECT name,salary , dept FROM emp e WHERE NOT EXISTS (SELECT 1 FROM dept WHERE deptno = e.dept); Which employees are retrieved from the above query:

1. class Announce { 5. public static void main(String[] args) { 6. for(int __x = 0; __x < 3; __x++) ; 7. int #lb = 7; 8. long [] x [5]; 9. Boolean []ba[]; 10. enum Traffic { RED, YELLOW, GREEN }; 11. } 12. }

1. class X { void do1() { } } 2. class Y extends X { void do2() { } } 3. 4. class Chrome { 5. public static void main(String [] args) { 6. X x1 = new X(); 7. X x2 = new Y(); 8. Y y1 = new Y(); 9. // insert code here 10. } 11. }

1. public class Tenor extends Singer { 4. public static String sing() { return "fa"; } 5. public static void main(String[] args) { 6. Tenor t = new Tenor(); 7. Singer s = new Tenor(); 8. System.out.println(t.sing() + " " + s.sing()); 9. } 10. } 11. class Singer { public static String sing() { return "la"; } }