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According to Codd's _____ rule of relational databases, if the system supports low-level access to the data, users must not be allowed to bypass the integrity rules of the database. a. nonsubversion b. information c. guaranteed access d. view updating

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Answer:

a. nonsubversion

Explanation:

Codd has 12 rules for relational databases which can be used in recent times to describe how Structured Query Language server operates.  

The rule no 12 is the Non-Subversion Rule which states that if a system supports a low-level language, then that language will not be used to subvert the integrity rules that are being expressed in relational languages that are of higher levels

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