So I read over this, this and this. I understand WHAT an sql injection is and the different TYPES of sql. But none of these guides give a definitive example on how to find, enumerate and exploit the different injection by hand. I'm looking for an answer to explain how to MANUALLY run through an sql injection process. If possible, please show examples for the different type of injections and how to enumerate different pieces of information critical to an sqli attack.
A few references;
http://www.imperva.com/resources/glossary/sql_injection.html Gives a pretty good walk through on the process.