Table method: realtions

 <tabobj> "relations"

• <tabobj> is the name of a PinK table object,
• relations is the name of the applied method.

• Return value: a list of relations descriptors, each one of the form:

  Name MinCard1 Targetlist

  where
  • Name is the name of the relation (column),
  • MinCard1 is the minimum left cardinality (0 or 1)
  • Targetlist is a list of possible targets of the form:

    Table MinCard2 MaxCard2

    where
    • Table is the ADAMO name of a possible target table,
    • MinCard2 is the minimum right cardinality,
    • MaxCard2 is the maximum right cardinality.

  Note:

  • For generalized relationships there is more than one target descriptor.
  • MaxCard2 can be NULL if there is no limit (noted as * in the DDL).

See also:

• getrelation.

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