导出为 XML

Question

你能告诉我为什么下面的sql有问题吗？

如果我运行这部分：

Select SmsSCh_ID AS "@Name", CONVERT(CHAR(10), SmsSCh_Scheduledate, 101) 
    + ' ' + LTRIM(RIGHT(CONVERT(CHAR(20), SmsSCh_Scheduledate, 20), 10)) AS "@Time" from Prj_SmsSch
for XML path ('Task'), ROOT('appSchedule')

我得到了正确的结果，但是当我把它放在代码中以便我可以将 xml 导出到文件中时，我得到了错误。

这是我的完整代码：

DECLARE 
  @FileName VARCHAR(50),
  @SQLCmd   VARCHAR(500)


select
  @FileName = 'C:\iman\SampleXMLOutput1.xml'

--in this command, we are making sure there is only one ROOT node

SELECT  @SQLCmd = 'bcp ' 
                + '"Select SmsSCh_ID AS "@Name", CONVERT(CHAR(10), SmsSCh_Scheduledate, 101) 
    + ' ' + LTRIM(RIGHT(CONVERT(CHAR(20), SmsSCh_Scheduledate, 20), 10)) AS "@Time" from Prj_SmsSch'
    + ' for XML path ('Task'), ROOT('appSchedule')'"' 
                + ' queryout '  
                + @FileName 
                + ' -w -T -S' + @@SERVERNAME

-- display command, for visual  check
SELECT @SQLCmd AS 'Command to execute'
-- create the XML file
EXECUTE master..xp_cmdshell @SQLCmd

我认为问题可能是@SQLCmd 中的'。 错误：

Msg 102, Level 15, State 1, Line 13
Incorrect syntax near ' + LTRIM(RIGHT(CONVERT(CHAR(20), SmsSCh_Scheduledate, 20), 10)) AS "@Time" from Prj_SmsSch'.
Msg 103, Level 15, State 4, Line 14
The identifier that starts with '' 
                + ' queryout '  
                + @FileName 
                + ' -w -T -S' + @@SERVERNAME
              ' is too long. Maximum length is 128.
Msg 105, Level 15, State 1, Line 14
Unclosed quotation mark after the character string '' 
                + ' queryout '  
                + @FileName 
                + ' -w -T -S' + @@SERVERNAME
               '.

感谢您的帮助

Answer 1

试试这个：

您混淆了内部引号。它们必须加倍，因为它们是 within 一个字符串。此外，我用AS [@name] 替换了您的AS "@name"，因为不需要转义括号。在你的ROOT 声明之后，有一个引用太多了......无法测试它，希望这有效：

DECLARE 
  @FileName VARCHAR(50),
  @SQLCmd   VARCHAR(500)


select
  @FileName = 'C:\iman\SampleXMLOutput1.xml'

--in this command, we are making sure there is only one ROOT node

SELECT  @SQLCmd = 'bcp ' 
                + '"Select SmsSCh_ID AS [@Name] ' 
                +          ',CONVERT(CHAR(10), SmsSCh_Scheduledate, 101) ' 
                +            ' + '' '' + LTRIM(RIGHT(CONVERT(CHAR(20), SmsSCh_Scheduledate, 20), 10)) AS [@Time] ' 
                +   'from Prj_SmsSch for XML path (''Task''), ROOT(''appSchedule'')"' 
                + ' queryout '  
                + @FileName 
                + ' -w -T -S ' + @@SERVERNAME

-- display command, for visual  check
SELECT @SQLCmd AS 'Command to execute'
-- create the XML file
EXECUTE master..xp_cmdshell @SQLCmd