SQL Fiddle. SQL Injection - Hakipedia. SQL Injection is one of the more popular application layer hacking techniques that is used in the wild today.
It is a trick that exploits poorly filtered or not correctly escaped SQL queries into parsing variable data from user input. The idea behind SQL injection is to convince the SQL application (whether MySQL, MSSQL, PostgreSQL, ORACLE etc) to run an SQL string that was not premeditated. Severity Relatively High. Common MySQL Queries. Common MySQL Queries Basic aggregation Last updated 01 Oct 2016 Aggregate across columns Last updated 09 Sep 2009 Aggregates across multiple joins.