SQL FOR XML list of nested rows

问题

I have this super long SQL query, now what this query does is the following, creates the first level which is the Job_No....next in the second level gets all the 'BaselineStart' however this separates each BaselineStart with baseOrSchedStartList, what I am looking to do is have 1 baseOrSchedStartList for each Job_No and have each 'string' under baseOrSchedStartList. I hope this makes sense. Here is my query:

SELECT [Job_No] as '@Key',
(
        SELECT ISNULL(UserDate1,ScheduleTasks.BaselineStart) AS 'string' 

        FROM ScheduleTasks INNER JOIN Schedule ON ScheduleTasks.ScheduleID = Schedule.ScheduleID INNER JOIN V_CONSTAT_ACTUAL_DATES ON V_CONSTAT_ACTUAL_DATES.JOB_NUMBER = Schedule.Job_No WHERE Job_No IN (SELECT JOB_NUMBER
                        FROM V_CONSTAT_ACTUAL_DATES
                        WHERE AREA_DESC = 'Orchard Park'
                        AND (DATE_TO_END IS NOT NULL AND DATE_TO_END >= GETDATE())) AND
               (
                        LibraryTaskID <> 203
                        AND LibraryTaskID <> 204
                        AND LibraryTaskID <> 210
                        AND LibraryTaskID <> 211
                        AND LibraryTaskID <> 214
                        AND LibraryTaskID <> 215
                        AND LibraryTaskID <> 218
                        AND LibraryTaskID <> 219
                        AND LibraryTaskID <> 224
                        AND LibraryTaskID <> 227
                        AND LibraryTaskID <> 230
                        AND LibraryTaskID <> 231
                        AND LibraryTaskID <> 232
                        AND LibraryTaskID <> 233
                        AND LibraryTaskID <> 234
                        AND LibraryTaskID <> 235
                        AND LibraryTaskID <> 236
                        AND LibraryTaskID <> 237        
                        AND LibraryTaskID <> 238
                        AND LibraryTaskID <> 239
                        AND LibraryTaskID <> 240
                        AND LibraryTaskID <> 242
                        AND LibraryTaskID <> 243
                        AND LibraryTaskID <> 295
                        AND LibraryTaskID <> 299
                        AND LibraryTaskID <> 303
                        AND LibraryTaskID <> 304
                        AND LibraryTaskID <> 305
                        AND LibraryTaskID <> 313
                        AND LibraryTaskID <> 314
                        AND LibraryTaskID <> 321
                        AND LibraryTaskID <> 333

               )

            ORDER BY DATE_TO_END, SortOrder
            FOR XML PATH('baseOrSchedStartList'), Type
)
FROM ScheduleTasks INNER JOIN Schedule ON ScheduleTasks.ScheduleID = Schedule.ScheduleID INNER JOIN V_CONSTAT_ACTUAL_DATES ON V_CONSTAT_ACTUAL_DATES.JOB_NUMBER = Schedule.Job_No WHERE Job_No IN (SELECT JOB_NUMBER
                        FROM V_CONSTAT_ACTUAL_DATES
                        WHERE AREA_DESC = 'Orchard Park'
                        AND (DATE_TO_END IS NOT NULL AND DATE_TO_END >= GETDATE())) AND
               (
                        LibraryTaskID <> 203
                        AND LibraryTaskID <> 204
                        AND LibraryTaskID <> 210
                        AND LibraryTaskID <> 211
                        AND LibraryTaskID <> 214
                        AND LibraryTaskID <> 215
                        AND LibraryTaskID <> 218
                        AND LibraryTaskID <> 219
                        AND LibraryTaskID <> 224
                        AND LibraryTaskID <> 227
                        AND LibraryTaskID <> 230
                        AND LibraryTaskID <> 231
                        AND LibraryTaskID <> 232
                        AND LibraryTaskID <> 233
                        AND LibraryTaskID <> 234
                        AND LibraryTaskID <> 235
                        AND LibraryTaskID <> 236
                        AND LibraryTaskID <> 237        
                        AND LibraryTaskID <> 238
                        AND LibraryTaskID <> 239
                        AND LibraryTaskID <> 240
                        AND LibraryTaskID <> 242
                        AND LibraryTaskID <> 243
                        AND LibraryTaskID <> 295
                        AND LibraryTaskID <> 299
                        AND LibraryTaskID <> 303
                        AND LibraryTaskID <> 304
                        AND LibraryTaskID <> 305
                        AND LibraryTaskID <> 313
                        AND LibraryTaskID <> 314
                        AND LibraryTaskID <> 321
                        AND LibraryTaskID <> 333

               )
               GROUP BY [Job_No]
               FOR XML PATH('Job_No'), ROOT('Root')

This query returns this data:

<Root>
  <Job_No Key="ORC0023">
    <baseOrSchedStartList>
      <string>2015-09-11T08:00:00</string>
    </baseOrSchedStartList>
    <baseOrSchedStartList>
      <string>2015-08-10T16:00:00</string>
    </baseOrSchedStartList>
    <baseOrSchedStartList>
      <string>2015-08-11T16:00:00</string>
    </baseOrSchedStartList>
  </Job_No>
</Root>

what I am looking for is the following:

<Root>
  <Job_No Key="ORC0023">
    <baseOrSchedStartList>
      <string>2015-09-11T08:00:00</string>
      <string>2015-08-10T16:00:00</string>
      <string>2015-08-11T16:00:00</string>
    </baseOrSchedStartList>
  </Job_No>
</Root>

Any help would be much appreciated.

回答1:

UPDATE According to your follow up question

If you just take away the @ from the AS [@Key] you'll get this

DECLARE @tbl TABLE([Key] VARCHAR(10),DateValue DATETIME);
INSERT INTO @tbl VALUES ('ORC0023','2015-09-11T08:00:00')
                       ,('ORC0023','2015-08-10T16:00:00')
                       ,('ORC0023','2015-08-11T16:00:00')

DECLARE @UniqueKey VARCHAR(10)='ORC0023';
SELECT @UniqueKey AS [Key]
      ,(
        SELECT DateValue AS [string]
        FROM @tbl AS tbl 
        WHERE tbl.[Key]=@UniqueKey
        FOR XML PATH(''),TYPE
       ) AS baseOrSchedStartList
FOR XML PATH('Job_No'),ROOT('Root')

/*
<Root>
  <Job_No>
    <Key>ORC0023</Key>
    <baseOrSchedStartList>
      <string>2015-09-11T08:00:00</string>
      <string>2015-08-10T16:00:00</string>
      <string>2015-08-11T16:00:00</string>
    </baseOrSchedStartList>
  </Job_No>
</Root>
*/

UPDATE2 For your actual query this means (probably)

Try to change the as '@Key' to as Key

and the

        ORDER BY DATE_TO_END, SortOrder
        FOR XML PATH('baseOrSchedStartList'), Type
)

        ORDER BY DATE_TO_END, SortOrder
        FOR XML PATH(''), Type
) AS baseOrSchedStartList

Another alternative was - as pointed out by BateTech in a comment - to put your "baseOrSchedStart" as ,ROOT('baseOrSchedStart') behind the FOR XML PATH('') and let the paranthesis unnamed...

Without your table's structures and test data it is difficult to fully understand your query (which isn't that super long actually :-) )

Therefore I prepared a simplified structure example and hope, that you can understand the approach and transfer this to your actual data

Just try the following:

DECLARE @tbl TABLE([Key] VARCHAR(10),DateValue DATETIME);
INSERT INTO @tbl VALUES ('ORC0023','2015-09-11T08:00:00')
                       ,('ORC0023','2015-08-10T16:00:00')
                       ,('ORC0023','2015-08-11T16:00:00')

DECLARE @UniqueKey VARCHAR(10)='ORC0023';

--This is structurally what you've got
SELECT @UniqueKey AS [@Key]
      ,(
        SELECT DateValue AS [string]
        FROM @tbl AS tbl 
        WHERE tbl.[Key]=@UniqueKey
        FOR XML PATH('baseOrSchedStartList'),TYPE
       )
FOR XML PATH('Job_No'),ROOT('Root')

/*
<Root>
  <Job_No Key="ORC0023">
    <baseOrSchedStartList>
      <string>2015-09-11T08:00:00</string>
    </baseOrSchedStartList>
    <baseOrSchedStartList>
      <string>2015-08-10T16:00:00</string>
    </baseOrSchedStartList>
    <baseOrSchedStartList>
      <string>2015-08-11T16:00:00</string>
    </baseOrSchedStartList>
  </Job_No>
</Root>
*/

Now try it like this

SELECT @UniqueKey AS [@Key]
      ,(
        SELECT DateValue AS [*]
        FROM @tbl AS tbl 
        WHERE tbl.[Key]=@UniqueKey
        FOR XML PATH('string'),TYPE
       ) AS baseOrSchedStartList
FOR XML PATH('Job_No'),ROOT('Root')

/*
<Root>
  <Job_No Key="ORC0023">
    <baseOrSchedStartList>
      <string>2015-09-11T08:00:00</string>
      <string>2015-08-10T16:00:00</string>
      <string>2015-08-11T16:00:00</string>
    </baseOrSchedStartList>
  </Job_No>
</Root>
*/

Btw: This is the same as this:

SELECT @UniqueKey AS [@Key]
      ,(
        SELECT DateValue AS [string]
        FROM @tbl AS tbl 
        WHERE tbl.[Key]=@UniqueKey
        FOR XML PATH(''),TYPE
       ) AS baseOrSchedStartList
FOR XML PATH('Job_No'),ROOT('Root')

来源：https://stackoverflow.com/questions/36583732/sql-for-xml-list-of-nested-rows

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