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Sunday, December 21, 2014
Free Download Oracle Database 11g The Complete Reference
Title : Oracle Database 11g The Complete Reference
Author : Kevin Loney
Series : Oracle Press
Saturday, December 20, 2014
Types of Variable in JAVA? Is JAVA a pure object oriented programming language?
A class can contain any of the following variable types.
Local variables : variables defined inside methods, constructors or blocks are called local variables. The variable will be declared and initialized within the method and the variable will be destroyed when the method has completed.
What is Java? What is Class & Object in Java?
JAVA:
Java is an Object Oriented Language. That has the feature of Object Oriented language like:
Polymorphism
Inheritance
Encapsulation
Abstraction
Classes
Objects
Monday, December 15, 2014
Vitual Memory? Cache Memory? Compiler & Interpreter? Low level language & High level language with difference between them?
Virtual Memory: Virtual Memory is a kind of memory which is used by the OS apart from RAM. It does not require permanent memory storage it just uses the memory virtually or temporarily. it is a reserved space created by windows to dump data in & out. it perform more or less the same function as our physical memory.
Saturday, December 13, 2014
Communication? Types of communication?Topology in computer network? Communication between two devices? Component of data communication? What is Protocol?
Communication:
Communication is defined as transfer of information, such as thoughts and messages between two entities. The invention of telegraph, radio,telephone, and television made possible instantaneous communication over long distances.
Data communications means the transmission (sending and
receiving) of information between two locations by means of electrical
signals. The two types of electrical signals are analog and digital.
Labels:
bus topology,
communication & type,
component of data communication,
computer network,
data communication,
full duplex,
half duplex,
mesh topology,
protocol,
ring topology,
simplex,
star topology,
topology
Location:
Kolkata, West Bengal, India
Thursday, December 11, 2014
Exception in JAVA
Exception
Exception is the inefficiency of the computer system to execute the given statement. An unexpected result obtained from the program is known as Exception.
Friday, November 28, 2014
DBMS architecture (2- tier & 3-tier architecture)
DBMS Architecture
The design of a Database Management System highly depends on its architecture. It can be centralized or decentralized or hierarchical. DBMS architecture can be seen as single tier or multi tier. n-tier architecture divides the whole system into related but independent n modules, which can be independently modified, altered, changed or replaced.
3-Level architecture in DBMS (Traditional model)
3 Level architecture:
It was two organisation ANSINC & SPARCE in 1972 proposed three level architecture:
- External or View level
- Conceptual or Logical Level
- Internal or Physical Level
DBMS overview, RDBMS v/s DBMS, File system & DBMS
What is Database?
A Database is a collection of coherent meaningful data today, typically in a digital form, so that its content can easily be accessed managed & updated.
The example of postal address would generally contain:
- Building name
- Street name
- Flat No.
- City
- State
- Pin code
- Country etc. Thus the address book is a database and the postal address in the book, is the data that fills the database.
What is DBMS?
Transaction Management in advance DBMS with properties of transaction & transition state diagram.
TRANSACTION MANAGEMENT
Transaction
A transaction is a unit of a program execution that accesses and possibly modifies various data objects (tupples, relations).
A transaction is a Logical unit of database processing that includes one or more access operations (read -retrieval, write - insert or update, delete).
Tuesday, November 25, 2014
Informatica Power center & Power mart?
Power Center: It is used by large organizations to handle larger volumes of data. We can configure multiple servers. If one server goes down then it automatically switches on to another server.
Informatica Power center installation in all windows XP,7,8
How to install Informatica? How to create Repository & Integration
Services?
Before we start the SETUP being run we have some very important settings to be done,
First we have to create a couple of environment variables on our computer,
this can be done by right clicking on to My Computer and select ‘Properties’.
Informatica Architecture
Informatica Architecture
Informatica Architecture is divided into two
components:
1.
Server Components -->Server Components in Informatica are:
a. Repository Server
b. Informatica Server
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Wednesday, November 19, 2014
SMTP (Simple Mail Transfer Protocol)? Brief discussion of SMTP
SMTP:
When we send a mail it travels between many different computers on the way from sender to receiver. The first part is SMTP server and we must have to communicate with this server using SMTP protocol.
Tuesday, November 18, 2014
How to create a database in C++ using file handling
#include<stdio.h>
#include<iostream.h>
#include<conio.h>
#include<fstream.h>
#include<string.h>
#include<stdlib.h>
#include<iomanip.h>
Sunday, November 16, 2014
Natural Language Processing in AI? Natural Language Processing (NLP) & its 7 stages? About Computer Language and Natural Language?
A natural language is just like a human language which we use for communication like English, Hindi, Gujarati, Bengali, Arabic ....etc.
Friday, November 14, 2014
Artificial Intelligence Strong and Weak (AI)? Difference between Strong AI v/s. Weak AI
AI is considered to be divided in to two major types, namely Weak AI and Strong AI. Weak AI is the thinking focused towards the development of technology capable of carrying out pre-planned moves based on some rules and applying these to achieve a certain goal. As opposed to that, Strong AI is developing technology that can think and function similar to humans, not just mimicking human behavior in a certain domain.
Artificial Intelligence? Human intelligence and artificial intelligence?
Artificial Intelligence
A.I. is the study of making computers smart. Artificial Intelligence is concerned with the design of intelligence in an artificial device.
The term was coined by McCarthy in 1956.The first definition we consider is by Elaine Rich, Artificial Intelligence is the study of how to make computers do things, at which, at the moment, people are better.
Wednesday, November 12, 2014
Process in Unix? Mechanism of Process creation in Unix? Process states and transition with diagram?
A process is simply a running program. A process is said to be born when the program starts execution and remains alive till the process is active. After the execution the process is said to be died.
Monday, November 10, 2014
Unix File System? Unix file structure? Blocks of Unix file system? Structure of regular file?
UNIX File System
Unix treats every thing as a file. All the utilities, applications and data are stored as a file. Even the devices and directories are also stored as a file. A Unix file system resembles an upside down tree. At the top their is root branching other directories called bin,lib, dev, usr, tmp, etc. Their is also a sub directories called UNIX which is nothing but a UNIX kernel it self.
Overview of UNIX architecture
Unix architecture
Unix OS divide into 2 parts :
- Kernel
- Shell
Kernel: Kernel is the heart of the Operating system.
Saturday, November 8, 2014
Unix Operating system with its basic features
About UNIX:
Operating System is the system software that act as interface between computer hardware and application software. Ex: DOS, Windows, Unix etc.
Unix was originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie etc.
JDBC type-2 ThinDriver example
class mydatabse
{
Connection cn;
ResultSet rs;
Statement st;
PreparedStatement pst;
{
Connection cn;
ResultSet rs;
Statement st;
PreparedStatement pst;
Friday, November 7, 2014
File Handling in Java
A stream (data) is a sequence of bytes that flow from source to destination.
- We can also say that stream is an abstraction either produce or consume information.
What is Informatica & What is Repository in Informatica? What is Informatica Repository?
Repository is a container of information about all the objects and activities done within the tools. It keeps references of remote objects like:Source Data ObjectTarget Data ObjectData Connection etc.
What are Integration Services in Informatica? Informatica Integration Services?
Informatica Integration Services
- Informatica Services does all the real job.
AWT in JAVA using Java.awt.*; package
- Abstract Window Toolkit (AWT) is a set of
application program interfaces ( API s) used by Java programmers to create
graphical user interface ( GUI ) objects, such as buttons, scroll bars, and
windows.
- The Abstract Window Toolkit (AWT) is
Java's original platform-independent windowing, graphics, and user-interface
widget toolkit.
Want Dual operating system in windows 7?
Hi...friends if u want dual OS then install 1 OS in C: then 2nd OS in E:
then follow below steps:
then follow below steps:
How to change Dynamic disk back to basic disk? Problem in partitioning drive?
To change a dynamic disk back to a basic disk using a command line
How to create AD-HOC in Windows 8, 8.1?
Using Windows Netsh Utility
The Network Shell (netsh) utility
is basically developed to let users configure network devices in both client
and server editions of Windows.
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