SQL is the power behind relational databases. Answer the questions in relation to SQL.

  1. What does SQL stands for? Why is SQL such a powerful language?
  2. Why is a Join in SQL so powerful. What does it do and how does it work.
  3. Why is by Query-By-Example so popular?. How does it work. Give an example you have experienced. Why is it the better choice for the application.

Original post should be at least 250 words.

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