Interview Questions

Q:

How do you eliminate duplicate values in DB2 SELECT?

Answer

Use SELECT DISTINCT ..... in DB2 query


 


The DISTINCT keyword can be used to return only distinct (different) values.


Syntax:


     SELECT DISTINCT column1,column2


      FROM table_name;


 

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Q:

A data warehouse is composed of

A) current data B) internal and external data sources
C) historical data from legacy systems D) historical & current data
 
Answer & Explanation Answer: C) historical data from legacy systems

Explanation:

A data warehouse is a relational database that is designed for query and analysis rather than transaction processing. It usually contains historical data that is derived from transaction data, but it can include data from other sources. Data warehouses are designed to help you analyze your data.

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Filed Under: Oracle
Job Role: Database Administration , IT Trainer

3 2924
Q:

Describe the .NET base class library

Answer

.NET’s Base class library exists in order to encapsulate huge number of common functions and makes them easily accessible to the developer. .NET base class library provides the functionality like ADO.NET, XML, Threading, IO, Security, Diagnostics, Resources, Globalization, collections etc. It serves as the main point of interaction between developer and runtime.

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Subject: .NET

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Q:

Are you willing to travel?

Answer

Most people say "Yes" and do not add more to it. Use this opportunity to market yourself and express interests and activities that are aligned with job role you are applying.

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Subject: Common Interview

3 2924
Q:

What are you looking for in your next job? What is important to you?

Answer

One of the interview questions you may be asked is what you are looking for in your next job. The interview wants to know whether your goals are a match for the companies needs.


You can begin your answer with this question: Tell me, Mr./Ms. Interviewer, what is a typical career path at OPL for someone with my skills and experience?


(Based on the answer you can then respond to the original question using the phrases from the answer to frame your response).


What is important to you? Two things are very important to me. One is my professionalism at work; the second is my family life.

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Subject: Work History

12 2920
Q:

The yield to maturity on a discount bond is

A) equal to both the coupon rate / current yeild B) less than the current yeild but greater than the coupon rate
C) greater than both the coupon rate / current yeild D) equal to the current yeild but greater than the coupon rate
 
Answer & Explanation Answer: A) equal to both the coupon rate / current yeild

Explanation:

Yield to maturity is a concept for fixed rate bonds and is the internal rate of return i.e. the rate at which future flows are discounted on a compound basis to give the present value of the bond including accrued interest.

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Filed Under: Bank Interview
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

1 2919
Q:

What is the common usage of serialization? What exceptions occur during serialization?

Answer

The object need to be serialized when it’s sent over a network and when it’s state is saved. Exceptions which occur during serialization are:


a. transient fields


b. when the base class is serialized then only base class fields are handled.


c. static fields are ignored because they are not part of any state.

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Subject: Java

1 2919
Q:

When do you use UPDATE_STATISTICS command?

Answer

This command is used when a large processing of data has occurred. If any large amount of deletions, any modifications, or Bulk Copy into the tables has occurred, it has to update the indexes to take these changes into account. UPDATE_STATISTICS updates the indexes on these tables accordingly.


 

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Subject: SQL

0 2919