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yashk's iiitd notes

Relation Implementation

Relation Implementation¶

$A_{1}, A_{2}, A_{3}, . . . A_{n}$ are attributes
$R$ = ( $A_{1}, A_{2}, A_{3}, . . . A_{n}$ ) is a relation schema
A relation instance over a schema $R$ is given as $r (R)$
All elements in a relation or an entity are stored as tuples

Ordering¶

All tuples in a table are unordered.