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Database training
1.2.03. Relation
Relation schema R(A
1
, A
2
, A
3
.. A
n
)
Design side
Assertion/declaration
Relation state
Data side
set of n-tuples
each one an ordered list of values
1NF: each value is atomic, no composite/multivalue
‹ 1.2.02. Relational model
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1.2.04. Abstract operations ›
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