这种语句是什么意思?
update #tem2 set cont = SUBSTRING(cont,1,len(cont) - 5 )
where cont like '%.0000'
update #tem2 set cont = SUBSTRING(cont,1,len(cont) - 3 )
where cont like '%.[1-9]000'
update #tem2 set cont = SUBSTRING(cont,1,len(cont) - 2 )
where cont like '%.[0-9][1-9]00'
update #tem2 set cont = SUBSTRING(cont,1,len(cont) - 1 )
where cont like '%.[0-9][0-9][1-9]0'
--
update #tem2 set bid = SUBSTRING(bid,1,len(bid) - 5 )
where bid like '%.0000'
update #tem2 set bid = SUBSTRING(bid,1,len(bid) - 3 )
where bid like '%.[1-9]000'
update #tem2 set bid = SUBSTRING(bid,1,len(bid) - 2 )
where bid like '%.[0-9][1-9]00'
update #tem2 set bid = SUBSTRING(bid,1,len(bid) - 1 )
where bid like '%.[0-9][0-9][1-9]0'