--try
select go_id from [goods],[user},[group] where DATEDIFF(dd,go_start_time,getdate())<90 and gr_go_id=go_id and gr_usr_id=usr_id and go_name like %3% order by go_start_time desc
select go_id from [goods],[user},[group] where DATEDIFF(dd,go_start_time,getdate())<90 and gr_go_id=go_id and gr_usr_id=usr_id and go_name like %3% order by go_start_time desc
select go_id from goods,[user],[group] where DATEDIFF(dd,go_start_time,getdate())<90 and gr_go_id=go_id and gr_usr_id=usr_id and go_name like '%3%' order by go_start_time desc
from goods,
[user],
[group]
where DATEDIFF(dd,go_start_time,getdate())<90
and
gr_go_id=go_id
and
gr_usr_id=usr_id
and
go_name like '%3%'
order by go_start_time desc
1。字段前边加上表名
2。关键字加中括号"[""]"