Where is World’s biggest database storage systems

[TheRuler]

I am studying database management and was reading about database storage systems and how they work. I wanted to know which is the world’s Biggest Database storage systems. I think it will be Google as one can find answer to almost every practical query.

[Deandre]

Google is not the biggest database storage system. Though it provides solution to almost every kind of query it is not the biggest.

[Karleen]

The biggest Database storage system in world is Library of Congress in Washington D.C., united states of America. Though it does not contain digital media, the printed media, that is Newspapers, books, catalogs, pamphlets, technical reports and many more create a databse of 20 terabytes of text data.

The library is not accessible to general public. It is accessible only to government Officials of U.S. government, Supreme Court justices, Members of Congress, the staff members working for the library and certain amount of people who have valid reader Identification card.

In numbers, the data in Library of Congress holds data of,

1. 130 million items (books, photographs, maps, etc)
2. 29 million books
3. 10,000 new items added each day
4. 530 miles of shelves
5. 5 million digital documents
6. 20 terabytes of text data

[Alexxx]

If all the biggest database storage systems of world are to numbered, the list will be as followsŞ

1) Library of Congress

• In numbers, the data in Library of Congress holds data of,
• 130 million items (books, photographs, maps, etc)
• 29 million books
• 10,000 new items added each day
• 530 miles of shelves
• 5 million digital documents
• 20 terabytes of text data

2) The Central Intelligence Agency (CIA)

• In numbers, the data in Library of Congress holds data of,
• 100 FOIA(Freedom of Information Act) items added each month
• Comprehensive statistics on more than 250 countries and entities
• Unknown number of classified information

3) Amazon: It is world’s biggest retail store.

• By the Numbers 59 million active customers
• More than 42 terabytes of data

4) YouTube : Largest Video Library

• By the Numbers100 million videos watched per day
• 65,000 videos added each day
• 60% of all videos watched online
• At least 45 terabytes of videos

5) ChoicePoint : It maintains records of citizens of U.S.A. which includes their Addresses, phone numbers, Driving License numbers, Criminal History and so on

• By the Numbers250 terabytes of personal data
• Information on 250 million people

6) Sprint: One of the world’s largest Telecommunication Company

• By the Numbers2.85 trillion database rows.
• 365 million call detail records processed per day
• at peak, 70,000 call detail record insertions per second

7) Google: Seardch Engine

• By the Numbers 91 million searches per day
• accounts for 50% of all internet searches
• Virtual profiles of countless number of users

8) AT&T: One of the largest & oldest Telecommunication company in U.S.A.

• By the Numbers 323 terabytes of information
• 1.9 trillion phones call records

9) National Energy Research Scientific Computing Center

• by the Numbers 2.8 petabytes of data
• Operated by 2,000 computational scientists

10) World Data Centre for Climate

• by the Numbers 220 terabytes of web data
• 6 petabytes of additional data