Issues on Insert Data From Existing Table

On 01/01/2011 19:49, vwu98034@lycos.com wrote:

I need to update the database schema to add a new table based on an
original table. The existing table is the following:

create table shop_image ( id SERIAL UNIQUE primary key, shop_fk
int references vsm_shop (id) on delete cascade, path varchar(255),
title varchar(80), sentence text, placement varchar(6), sequence
int2 );

and the new table is the following:

create table shop_image_narrative ( image_fk int references
shop_image (id) on delete cascade, lang char(2) not null, title
varchar(80), sentence text, placement varchar(6) );

When I run the following query

INSERT INTO shop_image_narrative (image_fk,title,sentence,placement)
select (id,title,sentence,placement) from shop_image;

to move data from the existing table to the new one, I run into the
following error

22:08:06 [INSERT - 0 row(s), 0.000 secs] [Error Code: 0, SQL State:
42804] ERROR: column "image_fk" is of type integer but expression is
of type record

Remove the parentheses from your SELECT:

INSERT INTO.... SELECT id, title, sentence, placement from shop_image;

My another question is how to insert a constant to a field while the
rest data from the data in another table?

Just include it as a literal in the SELECT part:

INSERT INTO.... SELECT id, 'foo', .....

Ray.

--
Raymond O'Donnell :: Galway :: Ireland
rod@iol.ie