请高手帮分析分析下面的sql语句 Select stuff((Select '; '+ltrim(ORDDES) From BOW02010 Where ORDDES not like '%挂号费%' and SERIALNUMBER=QQ.SERIALNUMBER for xml path('')),1,1,'') AS NewORDDES From BOW02010 QQ Where ORDDATE BETWEEN '2011-8-1 0:00:00' and '2012-2-2 23:59:59' 麻烦哪位高人帮解析解析主要是 for xml path('')),1,1,'')句不懂?