Error Handling / Exceptions

Oracle® Database PL/SQL Language Reference 11g Release 2 (11.2)

http://docs.oracle.com/cd/E11882_01/appdev.112/e25519/errors.htm#LNPLS007

Uni Potsdam - Wiki (Stefan Uhlmann)

http://fara.cs.uni-potsdam.de/~uhlmann/19/ch09.html