First normal form requires that a database excludes:
A.
Foreign keys
B.
Composite keys
C.
Duplicate rows
D.
Repeating groups
First normal form requires that a database excludes:
First normal form requires that a database excludes:
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C
D. 1Nf ensure that there are no repeating groups of data
D.
First normal form enforces these criteria:
1) Eliminate repeating groups in individual tables.
2) Create a separate table for each set of related data.
3) Identify each set of related data with a primary key