SQL XML 类型插入操作

--创建测试数据库
CREATE DATABASE mytest;
GO

USE mytest;
GO

--创建测试表
CREATE TABLE Users
(
ID INT IDENTITY(1,1),
UserInfo XML

)

/*****************插入单节点*****************************/

---插入测试数据
DECLARE @xml XML
SET @xml='<root xmlns="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/users">
<user>
<userid>1</userid>
<userName>test1</userName>
</user>
</root>'
INSERT INTO Users(UserInfo)VALUES(@xml)

--select * from Users
--添加address节点,默认添加在所有节点之后
UPDATE Users SET UserInfo.modify('insert <address>shanghai</address>
into (/root/user)[1]')

SELECT  * FROM Users

--添加address节点,节点顺序为第一个
UPDATE Users SET UserInfo.modify('insert <address>shanghai</address> as first
into (/root/user)[1]')

SELECT  * FROM Users

--添加address节点,节点顺序为最后一个
UPDATE Users SET UserInfo.modify('insert <address>shanghai</address> as last
into (/root/user)[1]')

SELECT  * FROM Users

--添加address节点到某个节点之后
UPDATE Users SET UserInfo.modify('insert <address>shanghai</address>
after (/root/user/userid)[1]')

--添加address节点到某个节点之前
UPDATE Users SET UserInfo.modify('insert <address>shanghai</address>
before (/root/user/userid)[1]')

SELECT  * FROM Users

---注：[1] 代表第一个item

/*****************插入多节点*****************************/

--添加firstName and LastName,以，分割

UPDATE Users SET UserInfo.modify('insert (<firstName>steven</firstName>,
<lastName>shi</lastName>) into (/root/user)[1]')

SELECT  * FROM Users

/*****************插入节点属性*****************************/

---在USER 节点插入ID 属性，并且值=1
UPDATE Users SET UserInfo.modify('insert attribute ID {"1"}
into (/root/user)[1]')
SELECT  * FROM Users

---在USER 节点插入ID 属性，值为一个变量，这个应该更常用
declare @uid float
set @uid=0.5
UPDATE Users SET UserInfo.modify('insert attribute UID {sql:variable("@Uid")}
into (/root/user)[1]')
SELECT  * FROM Users

---如果插入多个属性，需要用，分割
declare @aid float,@bid float
set @aid=0.5
set @bid=0.6
UPDATE Users SET UserInfo.modify('insert (attribute aid {sql:variable("@aid")},
attribute bid {sql:variable("@bid")}
)
into (/root/user)[1]')
SELECT  * FROM Users

/*****************插入节点注释*****************************/

---insert 注释

UPDATE Users SET UserInfo.modify('insert  <!-- 注释 -->
before (/root/user/userid[1])[1]')
SELECT  * FROM Users

/*****************插入处理指令*****************************/

UPDATE Users SET UserInfo.modify('insert <?Program = "A.exe" ?>
before (/root)[1]')
SELECT  * FROM Users

/*****************插入CDATA*****************************/

UPDATE Users SET UserInfo.modify('insert <C><![CDATA[<city>北京</city> or cdata]]> </C>
after (/root/user)[1]')
SELECT  * FROM Users

/*****************插入文本*****************************/

UPDATE Users SET UserInfo.modify('insert  text{"插入文本"} as first
into (/root/user)[1]')
SELECT  * FROM Users

/*****************根据 if 条件语句进行插入*****************************/

---判断属性值
UPDATE Users SET UserInfo.modify('insert  if(/root/user[@ID=1]) then (<tel>888888</tel>)
else (<qq>66666</qq>)
into (/root/user)[1]')
SELECT  * FROM Users

----判断节点Value
UPDATE Users SET UserInfo.modify('insert  if(/root/user[firstName="steven1"]) then (<tel>1111</tel>)
else (<qq>2222</qq>)
into (/root/user)[1]')
SELECT  * FROM Users

----判断user 节点数是否小于等于10
UPDATE Users SET UserInfo.modify('insert  if (count(/root/user)<=10) then element user { "This is a new user" }
else () as last
into (/root)[1]')
SELECT  * FROM Users

/*****************将节点插入类型化的 xml 列中*****************************/

UPDATE Users SET UserInfo.modify('
declare namespace UI="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/users";
insert <UI:user>
<UI:firstName>steven2</UI:firstName>
</UI:user> as first
into (/UI:root)[1]')
SELECT  * FROM Users

UPDATE Users SET UserInfo.modify('
declare namespace UI="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/users";
insert attribute ID { "55" }

into (/UI:root/UI:user)[1]')
SELECT  * FROM Users