I answered my own question. Yes, it can be done like this:
SELECT code, name, city, country, province FROM cust WHERE (country,
province) NOT IN (SELECT country, code FROM province);
The query returned two cust records that had bogus province codes in
them. Very cool :o)
Terry Lee Tucker wrote:
> I have loaded over 29,000 customer records into a database. I'm trying
> to apply a referential foreign key that validates the country code and
> the province code in another table. It won't work because somewhere in
> that 29,000 records there is a province code or country code that
> doesn't match. Is there a way to use a select statement to find out
> which customer records has the invalid data? Here is the partial table
> layout:
>
> cust province
> -------- -------
> country ===> country
> province ===> code
>
> Thanks in advance...
>
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