Code to get ASCII codes of any Database Character

https://dbissues.blogspot.com/2017/11/code-to-get-ascii-codes-of-any-database.html

select  

ascii(substr('PER MONTH',1,1)),

ascii(substr('PER MONTH',2,1)),

ascii(substr('PER MONTH',3,1)),

ascii(substr('PER MONTH',4,1)),

ascii(substr('PER MONTH',5,1)),

ascii(substr('PER MONTH',6,1)),

ascii(substr('PER MONTH',7,1)),

ascii(substr('PER MONTH',9,1))

from   dual

Code to get ASCII codes of character appearing in Vendor Name

select  ascii(substr(a.VENDOR_NAME,1,1)) from ap_suppliers a

where a.SEGMENT1 = 1

select  chr(83) from dual