Re: [GENERAL] one problem

>>Hello all
>>
>>how to get back one database (text format) to postgresql ?
>>
>>field1    field2    field3 ...
>>field1    field2    field3 ...
>>.
>>.
>>.
>>
>>thanks
>>
>
>
>the COPY command does that BUT BUT BUT BUT !!!
>how to specify the  fields for example I just insert  field2  into the
>database
>
>example:
>
>create table country (code char(2), country char(20));
>
>and i want to insert just the field country not the field code
>
>how to proceed ?

Salut Jonathan,

Hum... don't think you could do that with a COPY in one step

you could COPY all of that data into a temp table and then INSERT the
fields you want into the final table and delete the old ones so:

(in psql)

CREATE TABLE temp_copy (field1 text, field2 text, field3 text); --
obviously, use the right types

COPY temp_copy FROM <text_format_database>;

INSERT INTO country (country) SELECT field2 FROM temp_copy; -- or whatever
field or fields you want,

-- you could also use SELECT INTO command to create TABLE country on the
fly and alter it with ALTER TABLE if necessary.

DROP TABLE temp_copy;

HTH,

Stuart.


+-------------------------+--------------------------------------+
| Stuart Rison            | Ludwig Institute for Cancer Research |
+-------------------------+ 91 Riding House Street               |
| Tel. (0171) 878 4041    | London, W1P 8BT, UNITED KINGDOM.     |
| Fax. (0171) 878 4040    | stuart@ludwig.ucl.ac.uk              |
+-------------------------+--------------------------------------+