function getkeyvalue(s_keyname,s_keystr)
s_keybegin="<"+s_keyname+">"
s_keyend="</"+s_keyname+">"
s_i_begin=instr(s_keystr,s_keybegin)
s_i_end=instr(s_keystr,s_keyend)
if s_i_end<=s_i_begin+len(s_keybegin) then
getkeyvalue=""
exit function
else
getkeyvalue=mid(s_keystr,s_i_begin+len(s_keybegin),s_i_end-s_i_begin-len(s_keybegin))
exit function
end if
end function
function setkeyvalue(s_keyname,s_keystr,s_keyvalue)
if isnull(s_keyvalue) then
setkeyvalue=s_keystr
exit function
end if
s_keybegin="<"+s_keyname+">"
s_keyend="</"+s_keyname+">"
s_i_begin=instr(s_keystr,s_keybegin)
s_i_end=instr(s_keystr,s_keyend)
if s_i_end<=s_i_begin+len(s_keybegin) then
setkeyvalue=s_keystr+s_keybegin+s_keyvalue+s_keyend
exit function
else
setkeyvalue=mid(s_keystr,1,s_i_begin-1)+s_keybegin+s_keyvalue+s_keyend+mid(s_keystr,s_i_end+len(s_keyend))
exit function
end if
end function
If XML data in the table is less than 32K for each record, then you can directly unload the data as char. If XML data exceeds 32K for some records, then you have to unload the common data and the XML data separately. First, create a template for unloading XML into a PDS: TEMPLATE LOBFRV DSN 'AAA. ......
<?xml version="1.0" encoding="UTF-8"?>
<projects>
<node Country="暗暗啊" Gold="10" Silver="20" Bronze="30"/>
<node Country="白斑病" Gold="30" Silver="20" Bronze="10"/>
<node Country="常常厂" Gold="20" Silver="40" Bronze="60"/>
<node Country="赌东道" Gold="5 ......
SQL Server 2005为XML提供本地支持;现在可以在OPENXML节点中使用一个带有nodes()函数的XML字段类型把一个XML文件转化为一个行集。让我们来看一个使用OPENXML的简单例子，并显示如何把它转化为在SQL Server 2005中使用XML字段类型和nodes()函数。
为了使我们的例子简单化，我们将假设我们需要执行某种基于采购订单列表� ......
