Question

我需要输出类似的东西

<Employee EmpID="4">
  <FirstName>Rob</FirstName>
  <LastName>Walters</LastName>
</Employee>
<Employee EmpID="168">
  <FirstName>Rob</FirstName>
  <MiddleName>T</MiddleName>
  <LastName>Caron</LastName>
</Employee>

但SQL要做到这一点：

SELECT e.EmployeeID AS "@EmpID",
   c.FirstName, 
   c.MiddleName, c.LastName
FROM Employee AS e 
INNER JOIN Contact AS c 
ON c.ContactID = e.ContactID
WHERE c.FirstName = 'Ross'
FOR XML PATH (''), ROOT ('Employees');

返回此错误：

SQL Server Database Error: Row tag omission (empty row tag name) cannot be used with attribute-centric FOR XML serialization.

参见SQLFiddle：

SQLFiddle

Answer 1

最好的方法是使用正确的代码：

SELECT 
e.EmployeeID AS "@EmpID",
c.FirstName, 
c.MiddleName, c.LastName
FROM Employee AS e 
INNER JOIN Contact AS c 
ON c.ContactID = e.ContactID
WHERE c.FirstName = 'Ross'
FOR XML PATH ('Employee')
;

与正确的SQLFiddle一样：http://www.sqlfiddle.com/#!6/3a159/8/0

带有属性的SQL Server FOR XML PATH ROOT元素（路径模式符号@或/）

1 个答案: