<https://www.thecrazyprogrammer.com/2016/09/plsql-program-reverse-string.html>
<http://schema.org/description>
"Here you will get pl/sql program to reverse a string. The substr() function returns a part of string. It have following syntax."
<https://www.thecrazyprogrammer.com/2016/09/plsql-program-reverse-string.html>