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Beste mensen,

Handleiding hoogtuk 8 Kennismaken met Base probeer ik te volgen. Dit doe ik op Mac Pro laptop met 
Mac OS Mosjave en LibreOffice Versie: Op blz 20 wordt uitgelegd hoe de relatie tot stand 
wordt gebracht. Bij afbeelding 10 na OK krijg ik de volgende melding en kom daar niet mee verder.

irebird_sdbc error:
*unsuccessful metadata update
*ALTER TABLE Vakanties failed
*could not find UNIQUE or PRIMARY KEY constraint in table Brandstof with specified columns
caused by
'ALTER TABLE "Vakanties" ADD  FOREIGN KEY ("Datum","Kilometerstand","Hotel") REFERENCES "Brandstof" 
("Brandstof_ID","Datum","Prijs") ON UPDATE CASCADE  ON DELETE CASCADE ‘

Hoe los ik dit nu op.

Graag zie ik de reacties tegemoet. 

MVG Aleidus
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