Which normalization level is adopted in real-world database systems?
A.
1NF
B.
2NF
C.
3NF
D.
BCNF
Which normalization level is adopted in real-world database systems?
Which normalization level is adopted in real-world database systems?
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Answer : C (not sure)
http://www.tonymarston.net/php-mysql/database-design.html
C. 3NF
https://docs.oracle.com/database/121/DWHSG/concept.htm#DWHSG9282
There are important differences between an OLTP system and a data warehouse. One major difference between the types of system is that data warehouses are not exclusively in third normal form (3NF), a type of data normalization common in OLTP environments.