消息 156，级别 15，状态 1，第 1 行 关键字 'case' 附近有语法错误。

Question

--try: declare @sql1 varchar(8000) set @sql1='' select @sql1=@sql1+'max(case when PicTitle='''+PicTitle+''' then PicUrl else 0 end) as ['+PicTitle+']' from Attachment group by PicTitle set @sql1='select'+@sql1+' from Attachment group by PicTitle' exec(@sql1)

Answer 1

max(case 前面没空格...