Question: Explain the difference between an ORDER BY clause and a GROUP BY clause.? What is a trigger, and what is its purpose? Give an example.

Explain the difference between an ORDER BY clause and a GROUP BY clause.?

What is a trigger, and what is its purpose? Give an example.

What does it mean to say that a database displays both entity integrity and referential integrity?

What is the role of a DBMS, and what are its advantages? What are its disadvantages?

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