Re: SQL question....

[chester c young <chestercyoung(at)yahoo(dot)com>]

> create table access (name text, address ip)
> 
> I want to construct a SELECT statement which will return ONLY tuples 
> containing IP and name pairs IF there is an IP that has two or more 
> NAMEs associated with it.
> 
>

many ways:

select a1.* from access a1 where exists( 
   select 1 from access a2 where a2.name=a2.name and a1.ip!=a2.ip );

select a1.*
from    access a1
join    access a2 using( name )
where   a1.ip != a2.ip;