Many of Oracle's experience is not from the industrial environment, many problems and experience can be accumulated from their own tests.
Experiment to be done, but also to think!
What is the starting point of thinking?
Which of the following is my opinion or is unreasonable:
(I) find a way to solve the problem without errors
For more information, see: how to think
(Ii) which steps or operations cannot be performed or are carefully performed?
(3) Why?
(Iv) Why can't I do that? What is the impact of that?
(V) under what circumstances should I do?
(6) Why is Oracle designed like this?
(Vii) horizontal comparison: in comparison with MSSQL and DB2, where is Oracle doing well? Where is the problem?
Vertical Comparison: What are the improvements made by Oracle in 9i, 10g, 11g, and 12C? In a later version, what improvements will be made?
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