Aaron Chu wrote:
>Hi,
>
>I have a table which has a column of surnames (string) and I would
like >to know how can I retrieve (SELECT) all the repeated surnames,
i.e. >more than one person who has the same surname.
>Thanks.
What exactly you want to do? To eliminate duplicates? Use then:
select surname from users group by surname;
Maybe you want to know which surnames are duplicated? Use then:
select surname from users group by surname having count(*)>1
Regards,
Tomasz Myrta