Sunday, November 1, 2015

From Data Models to Databases



*Lecture note of Coursera - Introduction to Data Science*


  • How do we store data?
  • What is data model?  
             Three components 
                    1) Structures 
                    2) Constraints
                    3) Operations

  • What is database?
A collection of information organized to afford efficient retrieval

  • schema?







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