12

我想使用存储过程将一些作为参数传入的值插入到列的 xml 中的元素中。到目前为止，我有以下参数：

@profile_id int,
@user_id nvarchar(50),
@activity_name nvarchar(50),
@display_name nvarchar(50)

检索所需的 xml：

DECLARE @profiles_xml xml
SET @profiles_xml = (SELECT profiles from tbl_applied_profiles WHERE profiles.value('(Profile/ID)[1]','int')= @profile_id)

@profiles_xml 中的列中的 xml 如下所示：

<Profile>
  <ID>20</ID>
  <User>
    <ID>BC4A18CA-AFB5-4268-BDA9-C990DAFE7783</ID>
    <Name>somename</Name>
    <Activities>
      <Activity>
         <Name>activity1</Name>
      </Activity>
    </Activities>
  </User>
</Profile>

尝试向具有特定 ID 的用户插入活动名称和显示名称：

SET @profiles_xml.modify('
    insert
    if(/Profile/User/ID=sql:variable("@user_id"))
    then Activity[Name=sql:variable("@activity_name")][DisplayName=sql:variable("@display_name")]
    else()
    as first
    into (/Profile/User/Activities)[1]')

我也试过这个没有成功：

 SET @devices_xml.modify('
    insert /Profile/User[ID=sql:variable("@user_id")]/Activity[Name=sql:variable("@activity_name")][DisplayName=sql:variable("@display_name")]
    into (/Profile/User/Activities)[1]')

还有这个：

 SET @devices_xml.modify('
insert
 /Profile/User[ID=sql:variable("@user_id")]/Activities/Activity[Name=sql:variable("@activity_name")][DisplayName=sql:variable("@display_name")]
    into (/Profile/User/Activities)[1]')

这样做的正确方法是什么？

4

3 回答 3

20 
declare @XML xml = '
<Profile>
  <ID>20</ID>
  <User>
    <ID>BC4A18CA-AFB5-4268-BDA9-C990DAFE7783</ID>
    <Name>somename</Name>
    <Activities>
      <Activity>
         <Name>activity1</Name>
      </Activity>
    </Activities>
  </User>
</Profile>'

declare @user_id nvarchar(50) = '20'
declare @activity_name nvarchar(50) = 'activity1'
declare @display_name nvarchar(50) = 'displayname1'

set @xml.modify('insert <DisplayName>{sql:variable("@display_name")}</DisplayName>
                 into (/Profile[ID = sql:variable("@user_id")]
                       /User/Activities/
                       Activity[Name = sql:variable("@activity_name")])[1]')

结果：

<Profile>
  <ID>20</ID>
  <User>
    <ID>BC4A18CA-AFB5-4268-BDA9-C990DAFE7783</ID>
    <Name>somename</Name>
    <Activities>
      <Activity>
        <Name>activity1</Name>
        <DisplayName>displayname1</DisplayName>
      </Activity>
    </Activities>
  </User>
</Profile>
于 2012-11-05T14:40:19.667 回答
1

试试这个

declare @ins xml 
    '<Activity><Name>'+
    @activity_name+
    '</Name><DisplayName>'
    +@display_name+
    '</DisplayName></Activity>'
SET @devices_xml.modify('
    insert sql:variable("@ins") into (/Profile[ID=sql:variable("@user_id")]/User/Activities)[1]')

或者

SET @devices_xml.modify('
      insert <Activity>
             <Name>{sql:variable("@activity_name")}</Name>
             <DisplayName>{sql:variable("@display_name")}</DisplayName>
             </Activity> 
      into (/Profile[ID=sql:variable("@user_id")]/User/Activities)[1]'    )
于 2012-11-05T14:38:22.450 回答
1

不确定我是否完全理解您的逻辑，但您可以使用带有大括号的 sql:variable 插入 xml，例如

DECLARE @profiles_xml xml

set @profiles_xml = '<Profile>
  <ID>20</ID>
  <User>
    <ID>BC4A18CA-AFB5-4268-BDA9-C990DAFE7783</ID>
    <Name>somename</Name>
    <Activities>
      <Activity>
         <Name>activity1</Name>
      </Activity>
    </Activities>
  </User>
</Profile>'


SELECT 'before' s, DATALENGTH(@profiles_xml) dl, @profiles_xml

DECLARE @user_id CHAR(36), @activity_name NVARCHAR(MAX), @display_name NVARCHAR(MAX)
SELECT @user_id = 'BC4A18CA-AFB5-4268-BDA9-C990DAFE7783', @activity_name = 'TEST ACTIVITY NAME', @display_name = 'TEST DISPLAY NAME'

SET @profiles_xml.modify('
    insert <Activity><Name>{sql:variable("@activity_name")}</Name><DisplayName>{sql:variable("@display_name")}</DisplayName></Activity>
    as first
    into (/Profile/User/Activities)[1]')

SELECT 'after' s, DATALENGTH(@profiles_xml) dl, @profiles_xml
于 2012-11-05T14:52:27.690 回答