Re: Group By question

[Peter Brawley]

Chris, >I would like to query all rows that have more >than one person with the same email address. select id,count(emailaddr) as howmany from tbl t1 join tbl t2 using(emailaddr) group by id having howmany>1; PB ----- Chris W wrote: I have a table of people with one of the fields being the email address.  I would like to query all rows that have more than one person with the same email address.   For example if the data were like this... A [EMAIL PROTECTED] B [EMAIL PROTECTED] C [EMAIL PROTECTED] D [EMAIL PROTECTED] E [EMAIL PROTECTED] F [EMAIL PROTECTED] The query would return row A, D, B, and E,  in that order.  It would not return C or F

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