spool naar .csv-bestand met for loop

Je hebt geen 4 verschillende queries nodig, vermeld gewoon al je partities in de query:

set linesize 1000
set feedback off
set underline off
spool C:\Users\file.csv replace
SELECT cust_no FROM customer PARTITION (customer_PR1, customer_PR2, customer_PR3, customer_PR4)
        WHERE city='ba' AND first_name='john'
        AND salary=1000;
spool off;