Which normalization level is adopted in real-world data…

Which normalization level is adopted in real-world database systems?

Which normalization level is adopted in real-world database systems?

A.
1NF

B.
2NF

C.
3NF

D.
BCNF

Explanation:
http://docs.oracle.com/database/121/DWHSG/ch2logdes.htm#DWHSG9225



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