Re: Join question

On Thu, May 29, 2003 at 20:20:35 -0400,
"Williams, Travis L, NPONS" <tlw(at)att(dot)com> wrote:
> I have a table that is set up like this
>
> table A:
> First_name,Last_name,login
>
> I have another table that is set up like this
>
> table B:
> date,date,person1,person2,person3
>
> where the person1,2,3 is the login name from the first table.
>
> I need to get the first_name and last_name of all 3 persons using one select (well I don't have to do it in one.. but I thought it would be cleaner).. I can do one person using a join select like this:
>
> select A.First_name,A.Last_name from A,B where B.person1 = A.login
>
> I tried adding an or statement like "or B.person2 = A.login" but that returns 2 entrys for each row.. where I'm trying to get all the information back in one.

You need to join table A three times and give it three different aliases.
One alias gets get checked for each of the three people.