Can you change a row in PostgresSQL?

Question

I am interested in flipping a line in PostgreSQL.

Answer 1

PostgreSQL 9.1 and later include a built-in function.

 reverse(text)

http://www.postgresql.org/docs/current/static/functions-string.html

Answer 2

Here you have the function of reversing strings for PostreSQL:

http://a-kretschmer.de/diverses.shtml