novice wrote:
> I am trying to record the following entries into a table. I'm curious
> to know if there's an efficient/effective way of doing this? This
> entries come from an ancient datalogger (note: separated by space and
> uses YY/MM/DD format to record date)
>
> Plain file sample.dat
>
> 3665 OK BS 07/08/16 07:28
> 3665 CC BS 07/08/16 07:29
> 3665 CS BS 07/08/16 07:29
> 3665 CS BS 07/08/16 07:29
> 4532 OK BS 07/08/16 07:34
> 4004 OK BS 07/08/16 07:51
> 3991 OK BS 07/08/16 07:54
>
>
> This is the table that I'm adding the entries to
>
> CREATE TABLE maintenance
> (
> maintenance_id SERIAL PRIMARY KEY,
> meter_id integer,
> status text,
> inspector text,
> inspection_date timestamp with time zone,
> )
>
If your on unix, why not use those tools first?
awk '{print $1 "\t" $2 "\t" $3 "\t" $4 " " $5}' sample.dat > sample.tab
-- Begin SQL script
CREATE TEMP TABLE maintenance_tmp (
meter_id integer,
status text,
inspector text,
inspection_date timestamp with time zone
);
SET datestyle='ymd';
\copy maintenance_tmp FROM sample.tab
INSERT INTO maintenance (meter_id, status, inspector, inspection_date)
SELECT DISTINCT meter_id, status, inspector, inspection_date FROM
maintenance_tmp ORDER BY inpsection_date;
ANALYZE maintenance;
-- End SQL Script
[snip]
> Any thoughts and suggestions welcome.
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: explain analyze is your friend
>
