DISADVANTAGES OF FILE PROCESSING SYSTEMS:

There are many Disadvantage of file system as follow.
1.Uncontrolled redundancy
2.Inconsistent data
3.Inflexibility
4.Limited data sharing
5.Poor enforcement of standarts
6.Excessive program maintenance.

So the concept of DBMS is required.So it is important to learn DBMS

Application of a DBMS

The DBMS provides function to define the structure of the data in the application.These include defining and modifying  the record structure, the type and size of fields and the various constrains/condition to be satisfied by the data in each field.The functions performed by a typical DBMS are the following:

1. Data Manipulation
2. Data Security & Integrity
3. Data Recovery & Concurrency
4. Data Dictionary Maintenance
5. Performance
6. Authorization Services
7. Providing muliple interfaces.

WHAT IS DATABASE & DATABASE MANAGEMENT SYSTEM (DBMS)?

DATABASE:

Database is a collection of data in organized manner.

For example -  Detail of students  in  organized manner is also called database of that class.

DATABASE  MANAGEMENT SYSTEM (DBMS) :

Database Management system is computerized system in which user can store data. Delete, modify, add, retrieve operation is available in Database Management System(DBMS).

Some DBMS example like MYSQL,Oracle, RDBMS etc.

How to install 2 whatsapp acoount in android without root?

Step 1:

 Download OGwhatsapp.apk


Step 2:


Take backup of Whatsapp

step 3:

Rename Whatsapp folder with OGwhatsapp.

Step 4:

Reinstall whatsapp.apk again or do clear data.

step 5:


Install OGwhatsapp


step 6:

Now you can use two accounts. one in OGwhatsapp & one in Whatsapp.


Warning:

This is only for Educational Purpose.

THANK YOU !!!

How to disconnect college or any publice wifi connections only on one click & get maximum speed

Just download one softwear netcut


To download netcut click here:
http://www.arcai.com/download/netcut.exe

How To DIsable "Seen" Feature in facebook Chat

Many People Are Facing Problems Due To "Seen " Feature By Facebook in Chatbox. When You Chat with Your Friends , Facebook Shows " Seen " Along with The Date or Time You Read The Message.
This Feature Can Prove To Be Usefull For Some People But For Others Feel Like Disabling This Feature Due To Many Reasons. 

Its Very Irritating When You Dont Want to Chat With one of Your Friend But Still You Have to Because To Them It Shows That You Have Seen The Message and You Are Ignoring Them.
This Problem Can Be Solved By installing Just 1 Chrome Extention.

So Lets see How To Disable This " Seen " Feature in Facebook Chat.

Step 1 : Download Fb Unseen From Chrome Web Store.

Step 2: Click On Add To Chrome > Ok.

Step 3: Your Download Will Start And Will Be Installed in Seconds.

Step 4: Thats It, Start Chatting, You Have Just Disabled The " Seen " Feature .

You Can Ask your Friend If They Can See " Seen " In Thier Chatbox .

How to Publish Empty Comments On Facebook ?

This is very much easy and similar to Posting Empty Status.


Step 1: Login to Your Facebook Account.

Step 2: Goto Any Post Where Your Want to Publish Your Empty Status.

Step 3: Click on Add a Comment, now Press And Hold "Alt " Key and Press 0173 and press enter.