set @xmlContent = '
--更新属性
set @xmlContent.modify('
replace value of (/book/@name)[1]
with "SQL Server 2008"')
set @xmlContent.modify('
replace value of (/book/author[1]/text())[1]
with "李四"')
--更新一个无内容节点的内容,这里使用insert
set @xmlContent.modify('
insert text{"王五"}
into (/book/author[2])[1]')
select @xmlContent