Many-to-Many Relationships

Many_to_Many_relationshipsUsing Databases with Python
Many-to-Many Relationships in SQL
Many Students in Many Courses

Multiple_tablesUsing Databases with Python
Data Models and Relational SQL
Multi-Table Database – Tracks



Most important SQL commands
SELECT CustomerName, Address+‘, ‘+City+‘, ‘+PostalCode+‘, ‘+Country AS Address
FROM Customers;

C:\Users> cd Saved Games

print( “Name of the file: “,



How Quantum Computers and Machine Learning Will Revolutionize Big Data

How Quantum Computers and Machine Learning Will Revolutionize Big Data
Quanta Magazine. October 14, 2013

Large Hadron Collider (LHC) scientists rely on a vast computing grid of 160 data centers around the world, a distributed network that is capable of transferring as much as 10 gigabytes per second at peak performance.

The LHC’s approach to its big data problem reflects just how dramatically the nature of computing has changed over the last decade. Since Intel co-founder Gordon E. Moore first defined it in 1965, the so-called Moore’s law — which predicts that the number of transistors on integrated circuits will double every two years — has dominated the computer industry.
While that growth rate has proved remarkably resilient, for now, at least, “Moore’s law has basically crapped out; the transistors have gotten as small as people know how to make them economically with existing technologies,” said Scott Aaronson, a theoretical computer scientist at the Massachusetts Institute of Technology.

Alon Halevy, a computer scientist at Google, says the biggest breakthroughs in big data are likely to come from data integration.

Instead, since 2005, many of the gains in computing power have come from adding more parallelism via multiple cores, with multiple levels of memory.
The preferred architecture no longer features a single central processing unit (CPU) augmented with random access memory (RAM) and a hard drive for long-term storage.
Even the big, centralized parallel supercomputers that dominated the 1980s and 1990s are giving way to distributed data centers and cloud computing, often networked across many organizations and vast geographical distances.

Shakespeare’s Sonnets, Encoded In DNA

Shakespeare’s Sonnets, Encoded In DNA
January 25, 2013

Reporting in Nature, researchers write of encoding a variety of files—jpg, mp3, txt and pdf—in strands of DNA.
Lead author Nick Goldman says DNA is extraordinarily long-lasting, compared to today’s hard drives and magnetic tapes.
And if all the world’s information were written in DNA, he says, it would fit in the back of a station wagon.

what did you store in that DNA? … anything is just as possible. But we chose a photograph of our own institute

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