使用XQuery/XPath查找相關記錄

Question

我對XQUERY/XPATH非常陌生:)所以我很可能會以錯誤的方式解決這個問題。我有一個客戶對象序列化並以以下格式存儲在數據庫列中。

<Customer xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 
<Addresses> 
<AddressBlock> 
    <AddressLine1>1234 SomeStreet Ave.</AddressLine1> 
    <City>SomeCity</City> 
    <State>SomeState</State> 
    <Zipcode>SomeZip</Zipcode> 
</AddressBlock> 
<AddressBlock> 
    <AddressLine1>5678 SomeOtherStreet Ave.</AddressLine1> 
    <City>SomeOtherCity</City> 
    <State>SomeOtherState</State> 
    <Zipcode>SomeOtherZip</Zipcode> 
</AddressBlock> 
</Addresses> 
</Customer> 

我正在尋找一種方法來選擇此記錄，如果addressline1和同一個地址欄中的城市包含某些關鍵字。我有以下聲明幾乎做我正在尋找。

select * 
from users 
where [UserData].exist('/Customer/Addresses/AddressBlock/AddressLine1/text()[contains(upper-case(.),""SOMESTREET"")]')=1 
and [UserData].exist('/Customer/Addresses/AddressBlock/City/text()[contains(upper-case(.),""SOMECITY"")]')=1" 

我唯一的問題是這樣的statment也將返回記錄，如果第一addressblock包含addressline1和第二addressblock包含城市。

Answer 1

您必須在同一個XQuery中測試兩個條件。

select * 
from users 
where [UserData].exist('/Customer/Addresses/AddressBlock 
         [contains(upper-case(AddressLine1[1]),"SOMESTREET") and 
          contains(upper-case(City[1]),"SOMECITY")]')=1