Discuss the properties of a relation.
What will be an ideal response?
? has a name that is distinct from all other relation names in the relational schema;
? each cell contains exactly one atomic (single) value;
? each attribute has a distinct name;
? the values of an attribute are all from the same domain;
? each tuple is distinct; there are no duplicate tuples;
? the order of attributes has no significance;
? the order of tuples has no significance, theoretically. (However, in practice, the order may
affect the efficiency of accessing tuples.)
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