The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT
PARTY.PARTY_ID as customer_id
FROM
AR_PAYMENT_SCHEDULES_ALL PS
,HZ_CUST_ACCOUNTS_ALL CUST_ACCT
,HZ_PARTIES PARTY
,IEX_DEL_ALERTS_PUB_V DEL
WHERE
PS.CUSTOMER_ID = CUST_ACCT.CUST_ACCOUNT_ID
AND CUST_ACCT.PARTY_ID = PARTY.PARTY_ID
AND PS.PAYMENT_SCHEDULE_ID = DEL.PAYMENT_SCHEDULE_ID
AND DEL.DELINQUENCY_ID = c_delinquency_id
AND rownum < 2;