SQL Query解析XML并删除数据并将剩余结果发送到多个列

Question

有没有办法从表中的列中解析XML字符串数据，并且能够轻松地使用通配符自动删除部分XML字符串？

示例：

＆＃13;

＆＃13;

Example: 

<audit><fieldid>id="John"<fieldid>id="bob</audit>  
  
  How would i be able to remove just <fieldid>id="bob?

＆＃13;

＆＃13;

＆＃13;

＆＃13;

＆＃13;

How would i be able to remove just <fieldid>id="bob?  

If there are more values after <fieldid>id="bob, how would i be able remove those as well, but keep the </audit> in place at the end.

I have tried the following Update Statement and it did not work with a wildcard:

Update Table
Set column=Replace(Column, '<fieldid>id="bob%', </Audit>

＆＃13;

＆＃13;

＆＃13;

我尝试过以下操作，但替换功能中的通配符不起作用：

更新表 set column = replace（列，＆＃39; id =＆＃34; bob％＆＃39;，

Answer 1

假设：

模式id =＆＃34; bob只会出现一次。

这应该这样做。您只需要将变量@var替换为您的列：

DECLARE @Var VARCHAR(MAX) = '<audit><fieldid>id="John"<fieldid>id="bob</audit>';

SELECT REPLACE(@Var, SUBSTRING(@Var, PATINDEX('%<fieldid>id="bob%', @Var), PATINDEX('%<%', SUBSTRING(@Var, PATINDEX('%<fieldid>id="bob%', @Var)+1, LEN(@Var)))), '');

结果：

回答您的评论＆＃34;是否可以让脚本删除bob后的所有值并替换为？＆＃34;

DECLARE @Var VARCHAR(MAX) = '<audit><fieldid>id="John"<fieldid>id="bob<fieldid>id="John"</audit>';

SELECT REPLACE(@Var, SUBSTRING(@Var, PATINDEX('%<fieldid>id="bob%', @Var), PATINDEX('%</audit>%', SUBSTRING(@Var, PATINDEX('%<fieldid>id="bob%', @Var)+1, LEN(@Var)))), '');

结果：