Which database does Facebook & Google use ?

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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.
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How to know that pic is real or fake

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fake image catching
fake image catchingfake image catchingDownlod the pic you want to check
# Open Google
# Click on image, find on top corner
# Click on camera in search box
# Upload pic
Now you will get to know that how many people are using that pic as there profile pic and from where it is downloaded and who is that person .keep hacking  be safe !







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