Maybe you should view this article:
http://blog.chinaunix.net/u/29134/showart_375303.html
On Feb 12, 2008 8:32 AM, Grant Limberg <[EMAIL PROTECTED]> wrote:
> Something like this should help you find all of the dupes
>
> select email_address from table
> group by email_address
> having count(*)>1;
Something like this should help you find all of the dupes
select email_address from table
group by email_address
having count(*)>1;
On Feb 11, 2008 4:23 PM, Ferindo Middleton <[EMAIL PROTECTED]>
wrote:
> I have a table (customers) without a primary key. I want to make the
> email_address field t
I have a table (customers) without a primary key. I want to make the
email_address field the primary key, only problem is, several records
already share the same email_address
How do I write a query which will show me all the instances where
email_address is duplicated throughout the table.
--
Fe
