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IBM DB2 Interview Questions
Questions Answers Views Company eMail

What does DML stand for and what are some examples of it?

3 5153

What's the maximum number of volumes that can be added to a STOGROUP?

1 6225

what is the difference between join and union?

4 13999

In a DB2-CICS program which is acts as co-ordinator and which is participant?

1 3150

When Can you be sure that a query will return only one row?

4 4288

What is the size of a data page?

2 3173

Name the different types of Table spaces.

5 10409

Can you define an Index if the table size less than 10 PAGES?

1 4221

How many Buffer pools are there in DB2 and what are they?

1 5557

How many sub queries can you combine together ?

4 5965

How do u achieve record level locking in DB2 versions when record level locking is not allowed?

2 5202

Explain the use of the WHERE clause.

2 2767

How do you declare a host variable (in COBOL) for an attribute named emp-name of type VARCHAR(25) ?

2 7954

what's the best lock size that you could use when you create a tablespace?

2 3389

The only place of VSAM KSDS in DB2 is?

2 4751

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IBM DB2 Interview Questions

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3.2 Consider the following class: public class Point { protected int x, y; public Point(int xx, int yy) { x = xx; y = yy; } public Point() { this(0, 0); } public int getx() { return x; } public int gety() { return y; } public String toString() { return "("+x+", "+y+")"; } } Say you wanted to define a rectangle class that stored its top left corner and its height and width as fields. 3.2.1 Why would it be wrong to make Rectangle inherit from Point (where in fact it would inherit the x and y coordinates for its top left corner and you could just add the height and width as additional fields)? (1) 8 Now consider the following skeleton of the Rectangle class: public class Rectangle { private Point topLeft; private int height, width; public Rectangle(Point tl, int h, int w) { topLeft = tl; height = h; width = w; } public Rectangle() { this(new Point(), 0, 0); } // methods come here } 3.2.2 Explain the no-argument constructor of the Rectangle class given above. 3.2.3 Write methods for the Rectangle class to do the following: • a toString() method that returns a string of the format "top left = (x, y); height = h; width = w " where x, y, h and w are the appropriate integer values. • an above() method that tests whether one rectangle is completely above another (i.e. all y values of the one rectangle are greater than all y values of the other). For example, with the following declarations Rectangle r1 = new Rectangle(); Rectangle r2 = new Rectangle(new Point(2,2), 1, 4); the expression r2.above(r1) should give true, and r2.above (r2) should give false. (You can assume that the height of a rectangle is never negative.) (2) (5)


What is difference between function overloading and operator overloading?