CUBRID Q&A http://www.cubrid.org/?mid=questions CUBRID Q&A en Fri, 21 Oct 2011 02:37:10 -0800 Mon, 17 Jun 2013 00:34:43 -0800 XpressEngine 1.4.4.1 Can't create composite foreign key with a different cardinality ovidiuv http://www.cubrid.org/questions/435664 http://www.cubrid.org/questions/435664 I can't create composite foreign key with a different cardinality than the referenced table's primary key, even if there is a unique index:

CREATE TABLE "ITEMS" (
  "ID" integer AUTO_INCREMENT PRIMARY KEY,
  "ITEM_ID" integer FOREIGN KEY REFERENCES "ITEMS",
  UNIQUE ("ITEM_ID", "ID"),
  FOREIGN KEY ("ID", "ITEM_ID") REFERENCES "ITEMS"("ITEM_ID", "ID")
);

gives error:

The number of keys of the foreign key 'fk_items_id_item_id' is different from that of the primary key 'pk_items_id'.

]]> Tue, 25 Sep 2012 02:00:42 -0800 foreign key cardinality unique primary key 1