The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT wf.notification_id, msg.msg_id, msg.msg_code
FROM wf_notifications wf
, xnp_msgs msg
WHERE wf.message_name like 'MSG_FAILURE_NOTIF'
AND wf.status = 'OPEN'
AND msg.msg_code like p_msg_to_retry
AND msg.msg_status = 'FAILED'
AND TO_CHAR(msg.msg_id) =
SUBSTR(subject,INSTR(subject,' - ')+3,LENGTH(subject));