Technology Questions

Q:

What is Data warehousing?

Answer

Data warehousing is a process of repository of electronic data of an organization. For the purpose of reporting and analysis, data warehousing is used. The essence concept of data warehousing is to provide data flow of architectural model from operational system to decision support environments. 

Report Error

View answer Workspace Report Error Discuss

0 2778
Q:

Describe the use of PL/SQL table?

Answer

PL/SQL tables are scalar arrays that can be referenced by a binary digit. They can be used to store values for later queries and calculations.

Report Error

View answer Workspace Report Error Discuss

Subject: SQL

0 2777
Q:

Which platforms does Silverlight support?

Answer

  • Mac OS 

  • Windows Vista 

  • Windows XP SP2 

  • Windows 2000 

  • Windows Server 2003 

  • Linux (Moonlight) 



 

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

0 2777
Q:

Are Java and JavaScript the Same?

Answer

No.java and javascript are two different languages.
Java is a powerful object - oriented programming language like C++,C whereas Javascript is a client-side scripting language with some limitations.

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

0 2776
Q:

What is the difference between class and structure?

Answer

Structure: Initially (in C) a structure was used to bundle different type of data types together to perform a particular functionality. But C++ extended the structure to contain functions also. The major difference is that all declarations inside a structure are by default public.
Class: Class is a successor of Structure. By default all the members inside the class are private.

Report Error

View answer Workspace Report Error Discuss

Subject: C++

0 2774
Q:

What is the difference between a contract and a scheduling agreement?

Answer

A scheduling agreement can be made for Consignment, Subcontracting and stock transfer. A contract, also known as a blanket PO, can be made for standard items and can be restricted to a Value or QTY.

Report Error

View answer Workspace Report Error Discuss

Subject: SAP

2 2769
Q:

What is PEAR in php?

Answer

PEAR(PHP Extension and Application Repository) is a framework and repository for reusable PHP components. PEAR is a code repository containing all kinds of php code snippets and libraries. 


PEAR also offers a command-line interface that can be used to automatically install "packages".

Report Error

View answer Workspace Report Error Discuss

Subject: PHP

0 2768
Q:

How would you reverse a doubly-linked list?

Answer

This problem isn't too hard. You just need to start at the head of the list, and iterate to the end. At each node, swap the values of pNext and pPrev. Finally, set pHead to the last node in the list.


Node * pCurrent = pHead, *pTemp;


while (pCurrent)


{


  pTemp = pCurrent->pNext;


  pCurrent->pNext = pCurrent->pPrev;


  pCurrent->pPrev = temp;  


  pHead = pCurrent;


  pCurrent = temp;


}

Report Error

View answer Workspace Report Error Discuss

0 2765