hamza Posted July 25, 2010 Share Posted July 25, 2010 in juction table why we need pk groupcontactid ... see link below http://www.dbforums.com/attachments/microsoft-access/5551d1134395887-subforms-using-junction-table-relationships.gif Please guide me about that. Quote Link to comment https://forums.phpfreaks.com/topic/208830-juction-table/ Share on other sites More sharing options...
FuThAr Posted July 26, 2010 Share Posted July 26, 2010 junction table, is a "cross-reference" table, a link table between 2 or more table, with common fields from them. GroupContactsId is the PK of the tblGroupContacts. It depends of the db/data structure, bit if you set the couple groupId-ContactId as PRIMARY KEY, you dont need the GroupContactsId Quote Link to comment https://forums.phpfreaks.com/topic/208830-juction-table/#findComment-1091071 Share on other sites More sharing options...
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