It means that the particular key value that is used in the referencing
table does not have an associated value in the referenced table,
not the columns themselves.
On 30 Jul 2001, tony wrote:
> Hello,
>
> While copying from a text file of tab delimited data I am getting
> " ERROR: <unnamed> referential integrity violation - key referenced
> from films not found in sales"
>
> The salesid field
> salesid INTEGER PRIMARY KEY DEFAULT NEXTVAL('sales_serial')
>
> exists
>
