Self documenting program in SQL

Did anybody write a query that duplicates itself as an output in SQL yet? In the list of languages at

http://www.nyx.net/~gthompso/quine.htm

SQL is absent. No cheating, please, like the one below exploring implementation quirks of specific database client program (SQL*Plus):

SQL> SP2-0734: unknown command beginning "SP2-0734: ..." - rest of line ignored.
SP2-0734: unknown command beginning "SP2-0734: ..." - rest of line ignored. Received on Fri May 20 2005 - 13:42:34 CDT