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Multivalued Attributes

  • Multivalued attributes are not included in the same table
  • They are included in another table, which contains necessary information

Example

soldiersoldier_ID{ranks}

soldier(soldier_ID) ranks(soldier_ID, rank)

so, if soldier A has rank A in weapon X, and rank B in weapon Y. Then the the ranks table is filled as

(A, A, X) (A, B, Y)