Re: Flat File unload/export/copy - Mailing list pgsql-novice

Regina,
I wasn't aware that you could!
I just tried and that syntax gave me an error:
rel_reinsure=# copy (select * from client where name like '%BERT%') to '/tmp/stevet.clients';
ERROR:  syntax error at or near "(" at character 6
LINE 1: copy (select * from client where name like '%BERT%') to '/tm...

- I can do though:
rel_reinsure=# copy client (recno,code,name) to '/tmp/stevet.clients';

... or select all columns, but that is 'too global' and I just want 'WHERE name LIKE '%BERT%' type syntax.


On Fri, 2008-09-12 at 11:31 -0400, Obe, Regina wrote:

And why can't you use copy?
 
Something like below -
 
COPY (SELECT * FROM sometable WHERE somevalue LIKE '%') TO
'/path/to/textfile.csv'

WITH NULL As 'NULL' CSV HEADER QUOTE AS '"';

 


________________________________

From: pgsql-novice-owner@postgresql.org
[mailto:pgsql-novice-owner@postgresql.org] On Behalf Of Steve T
Sent: Friday, September 12, 2008 11:16 AM
To: PostGreSQL
Subject: [NOVICE] Flat File unload/export/copy


Is there a command that copies data from a table to a flat file for
specified selection criteria?
IE akin to a copy but not dumping a whole file?
If I'm about to do a major change to data in a table, I'd like to be
able to keep a copy of the data before the change (I know I can
Begin...rollback should things go wrong).

Is there a command that I've missed? (Informix had an 'UNLOAD TO blah
SELECT blah..' type command which presumably was proprietary). 
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