From: | venkat <ven(dot)tammineni(at)gmail(dot)com> |
---|---|
To: | pgsql-general(at)postgresql(dot)org, pgsql-sql(at)postgresql(dot)org |
Subject: | How to update multiple rows |
Date: | 2010-10-26 07:07:44 |
Message-ID: | AANLkTim4QDfbyss7C_qB=ezUc-ZQiPDDj3qyLUwbCH2L@mail.gmail.com |
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Lists: | pgsql-general pgsql-sql |
Dear All,
I want to update multiple row in single query.I am trying for below
query.I am getting error as
"ERROR: more than one row returned by a subquery used as an expression
SQL state: 21000"
Here is my Query.
update parcelsdata set gid=(select random() * 10),
kasarano=(select kasarano from parcelsdata),
murabano=(select murabano from parcelsdata),
the_geom = (select
(st_dump(st_polygonize(st_union(st_boundary(the_geom), the_line)))).geom as
the_geom from
(select gid,kasarano,murabano,st_linefromtext('LINESTRING('
||(st_xmin(the_geom)-1)::text||'
'||(st_ymax(the_geom)-the_length)||',
'||st_xmax(the_geom)+1||'
'||st_ymax(the_geom)-the_length||')',24047) as the_line, the_geom from
(select 100 as the_length, * from parcelsdata) a) b
where gid = 113 GROUP BY gid,kasarano,murabano)
where kasarano='1' and murabano='119'
Please let me know.I am waiting for your great response.
Thanks and Regards,
Venkat
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