Oracle Certification Exam Question:

How to create a multiple databases with the same configuration?

Answers:

Answer #1Applications can create multiple databases with in a single file.This is useful when database are both numerous and reasonably small in order to avoid creating a large number of underlying files.Putting multiple databases in a single physical file is an administrative convenience and unlikely to affectdatabase performance.

Answer #2Create different databases on the same SQL Server instance
Install 2 separate instances of SQL Server on the same physical computer
Install 2 VMware machines

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Explain Which two statements are true regarding working with dates? (Choose two.)
A. The default internal storage of dates is in the numeric format
B. The default internal storage of dates is in the character format
C. The RR date format automatically calculates the century from the SYSDATE function and does
not allow the user to enter the century
D. The RR date format automatically calculates the century from the SYSDATE function but allows
the user to enter the century if required?

What will be the output for this query:
select 1 from dual minus select a from dual;