Question

Ive been struggling to work out how I can delete the rows from the RENTALLINE_ID in RENTALLINE_1 and then delete RENTAL_ID from the RENTAL_1. I have the select statement which finds the exact values I want to delete. It finds the records older than 3 years. I am using SQLPlus with command line interface.

select rentalline_1.rentalline_ID,
       rentalline_1.tool_store_id,
       rentalline_1.rental_id,
       rentalline_1.qty,
       rental_1.datein
from rental_1
  inner join rentalline_1 on rental_1.rental_id = rentalline_1.rental_id
where MONTHS_BETWEEN (SYSDATE, DATEIN) > (36)

Thanks in advance for any help!

Answer 1

I can’t test on an oracle database here, but I would expect

DELETE rental_1, rentalline_1
from rental_1
  inner join rentalline_1 on rental_1.rental_id = rentalline_1.rental_id
where MONTHS_BETWEEN (SYSDATE, DATEIN) > (36)

you could also give it a swing with

DELETE from
( SELECT * 
from rental_1
  inner join rentalline_1 on rental_1.rental_id = rentalline_1.rental_id
where MONTHS_BETWEEN (SYSDATE, DATEIN) > (36) )