Keep the FK but set ON DELETE NONE

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>Thx. Thought that might be the answer ; got it working for cascading the deletes. But that leaves the other half of the equation : How to prevent insertions in the RowColumns table if the ColumnId doesn't exist in the Columns table ?
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>Regards,
>Viv
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>>You can replace one of ON DELETE CASCADE to RowColumns with a trigger.
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