Where子句中SQL

Question

使用XML时

我目前使用XML数据类型在SQL表

我的数据表看起来像这样

Id | Name | Surname | Title | Location | Artist | 
------------------------------------------------------- 
1 | xxx | abc  | def | London | XML | 
2 | xxx | abc  | def | Oslo  | XML | 
3 | xxx | abc  | def | New York | XML | 

我的XML文件看起来像这样

<song category="gaming"> 
<title>Valentine's Day</title> 
<artist-main>Fatfinger</artist-main> 
<artist-featured>Slimthumb</artist-featured> 
<year>2013</year> 
<price>29.99</price> 
<album>Gamestain</album> 
<albumimg>http://download.gamezone.com/uploads/image/data/875338/halo-4.jpg</albumimg> 
<songurl>http://www.youtube.com/watch?v=-J0ABq9TnCw</songurl> 

现在要根据艺术家获取记录，我使用的查询是

SELECT 
Id, Name, Surname, Title 
FROM 
DATA 
WHERE 
Artist Like '%Fatfinger%' -- (this is user input) 

这是查询SQL中的XML数据的正确方法，还是SQL中有可以处理XML的任何内置函数？我是SQL新手。

Answer 1

试试这个：

declare @table table (
Id int, Name varchar(50), Surname varchar(50), 
Title varchar(50), Location varchar(50), Artist xml) 

insert into @table (Id, Name, Surname, Title, Location , Artist) 
values(1, 'xxx', 'abc', 'def', 'London', '<song category="gaming"></song> 
<title>Valentines Day</title> 
<artist-main>Fatfinger</artist-main> 
<artist-featured>Slimthumb</artist-featured> 
<year>2013</year> 
<price>29.99</price> 
<album>Gamestain</album> 
<albumimg>http://download.gamezone.com/uploads/image/data/875338/halo-4.jpg</albumimg> 
<songurl>http://www.youtube.com/watch?v=-J0ABq9TnCw</songurl>') 

SELECT Id, Name, Surname, Title 
FROM @table 
WHERE Artist.value('(/artist-main)[1]','varchar(max)') LIKE '%FatFinger%' 

Answer 2

您需要使用.value函数。

SELECT Id, Name, Surname, Title 
FROM DATA 
WHERE Artist.value('(/song/artist-main)[1]','varchar(max)') LIKE '%FatFinger%'