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Re: Select / sub select? query... help...

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Thanks for the advice..  I got it working!

-Jim

"Jim Fitzgerald" <jfitz@xxxxxxxxxxxxx> wrote in message 
news:e30gad$i7$1@xxxxxxxxxxxxxxx
> Hello -
>
>  I'm trying to figure out how to write a particular query and need some 
> assistance.  I imagine this is extremely simple.  I have the table defined 
> below with five records.  This table keeps track of peoples names.  Each 
> person has a unique ID number ("person_id").  The table can also keep 
> track of alias names for these people.  Each record has a flag ("isalias") 
> indicating whether or not this record indicates a persons real name or a 
> persons alias name.  If it is an alias name then an additional field 
> ("alias") has the number indicating this persons real name record by 
> person_id  (ie alias field of an alias record == the person_id of the real 
> name record).
>
>  I want a query that will select all entries where "isalias" is true and 
> will display the person_id, first, and last fields from the alias record 
> and ALSO the first and last fields from the real name entry.
>
> Output would be something like this for the example data below
>
> 3 - Johns - Alias - John - Smith
> 4 - Marks - Alias - Mark - Twain
>
>
> Any thoughts on how this can be accomplished easily / efficiently?
>
> Thanks
> -Jim
>
>
>             Table "public.people"
>  Column   |         Type          | Modifiers
> -----------+-----------------------+-----------
> person_id | integer               |
> first     | character varying(20) |
> last      | character varying(20) |
> alias     | integer               |
> isalias   | boolean               |
>
> Containing the example data:
>
> person_id | first | last  | alias | isalias
> -----------+-------+-------+-------+---------
>         1 | John  | Smith |     0 | f
>         2 | Mark  | Twain |     0 | f
>         3 | Johns | Alias |     1 | t
>         4 | Marks| Alias |     2 | t
>         5 | someone | else |   0| f
>
> (5 rows)
>
>
> 




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