Re: [GENERAL] FOREIGN KEY syntax

Andrzej Mazurkiewicz wrote:
  >> And what is MATCH FULL?
  >    [Andrzej Mazurkiewicz] I would not like to speculate perhaps
  >somebody else knows exact answer.

MATCH FULL:
  Either all referencing columns must be null, or all must have values.

MATCH PARTIAL:
  "if any columns are non-null, there must be at least one row in the
   referenced table that could satisfy the constraint if the other null
   values were correctly substituted."
                           (The SQL Standard Handbook, Cannan & Otten)
--
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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