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Date: Thu, 17 Apr 2003 15:20:59 +0200
From: Christoph Haller <ch@rodos.fzk.de>
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To: pgsql-sql@postgresql.org
Cc: mallah@trade-india.com
Subject: Re: getting rid of "Adding missing FROM-clause entry...."
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>
> Actually i have to update multiple columns my original
> query was:
>
> UPDATE  profile_master    SET
>
>  title1=a.title1 , fname1=a.fname1 , mname1=a.mname1 ,
>  lname1=a.lname1 , desg1 = a.desg1 FROM
>
> (
>    SELECT company_id , titile as title1 ,fname as fname1 ,mname as
mname1 ,
>    lname as lname1 ,company_position as desg1  from
public.catalog_key_contacts as b
>    where  b.company_id=profile_master.company_id order by contact_id
limit 1 offset 0)
>
> as a WHERE
>
> profile_master.source='CATALOG' ;
>
> > Hi I am having problem with an UPDATE ... FROM
> > SQL where the FROM table is a subquery.
> >
> > UPDATE  profile_master set title1=a.title1  FROM
> > (
> >
> > SELECT company_id , titile as title1 ,fname as fname1 ,mname as
mname1
> > ,lname as lname1 ,company_position as desg1  from
> > public.catalog_key_contacts  where
company_id=profile_master.company_id
> > order by contact_id limit 1 offset 0 )  as a
> > where profile_master.source='CATALOG' ;
> > NOTICE:  Adding missing FROM-clause entry in subquery for table
> > "profile_master" UPDATE 711
> >
> > its showing an update of 711 however all the 711 matching rows are
getting
> > updated to the same value.
> >
> > can anyone tell me how to write this query properly ?
> >
I think you need a second reference to the profile_master table.
And why are you using "limit 1 offset 0"?
So I'd say

UPDATE  profile_master    SET

 title1=a.title1 , fname1=a.fname1 , mname1=a.mname1 ,
 lname1=a.lname1 , desg1 = a.desg1 FROM

(
   SELECT company_id , title as title1 ,fname as fname1 ,mname as mname1
,
   lname as lname1 ,company_position as desg1
   from public.catalog_key_contacts as b ,profile_master as c
   where  b.company_id=c.company_id order by contact_id )

as a WHERE

source='CATALOG' ;

Does this work?
Regards, Christoph