Usage of ORDER BY in XML

Question

I am using a simple table to store records.
I am using sys_xmlgen, xmlforest and xmlagg functions to generate an XML. While the the records re retrived and XML is formed the sequence of the records is not as desired.
for eg: i have got 6 rows in a simple table. When a select query is written with the xml functions the xml is generated but record no 4 always occurs at the end of the xml generated. This is a consistent behaviour and occurs irrespective of all above. I have tried using order by rowid also but the problem persists.
Is there any way to retrive the XML in the order the rows were inserted in the table?

Answer 1

Hi,
I have pasted the query which uses the xmlagg and other xml functions in order to generate an XML from a table.
The data inserted in the table is also pasted and the generated XML output. I have tried using order by in the query (in sub-queries also) but was not successful in doing so. Could you please have a look and let me know that where shall i place the order by clause in order to get the proper XML.
The error in the XML that is generated is jumbled up and not in accordance as the rows were inserted. How do i order them and generate the XML?
CREATE TABLE ARS_EMPLOYEE
EMPID VARCHAR2(10 BYTE),
DOJ VARCHAR2(12 BYTE),
TRAINING_TYPE VARCHAR2(10 BYTE),
TRAINING_CODE VARCHAR2(10 BYTE),
TCODE VARCHAR2(10 BYTE),
DEV_PHASE VARCHAR2(30 BYTE),
DEV_TIME VARCHAR2(10 BYTE),
DT_CODE VARCHAR2(10 BYTE)
INSERT INTO ARS_EMPLOYEE A (
A.EMPID,
                              A.DOJ,
                              A.TRAINING_TYPE,
                              A.TRAINING_CODE,
                              A.TCODE,
                              A.DEV_PHASE,
                              A.DEV_TIME,
                              A.DT_CODE
                              VALUES (
                              '1',
                              '12-MAY-1985',
                              'WBT',
                              '1',
                              'GEN',
                              'RA',
                              '11',
                              'GEN'
CREATE TABLE ARS_EMPLOYEE_XML
ID NUMBER(10),
MESSAGE CLOB,
T_TIME VARCHAR2(30)
DECLARE
l_clob CLOB;
BEGIN
SELECT sys_xmlgen(
sys_xmlgen(xmlelement("COMPANY_MAIN"
,xmlelement("COMPANY"
,xmlelement("EmployeeId",a.EMPID)
,xmlelement("DOJ"
,xmlelement("DateOfJoining",(SELECT DISTINCT TO_CHAR(TO_DATE(AAA.DOJ,'DD-MON-YYYY'),'yyyy-mm-dd') FROM ARS_EMPLOYEE AAA WHERE EMPID = '1' AND DOJ = '12-MAY-1985'))
,xmlagg((SELECT
xmlagg(xmlelement("Training_TypeItem"
,xmlforest(b.TRAINING_TYPE AS "Training_Type")
,xmlelement("Training_TypeBal"
,xmlelement("Training_TypeAmt"
,xmlforest(b.TRAINING_CODE AS "TrainingCode",b.TCODE AS "TCode" ))
,(SELECT
xmlagg(xmlelement("DevlopmentPhaseTotal"
,xmlforest(e.DEV_PHASE AS "DevlopmentPhase")
,xmlelement("TotalCurAmt"
,xmlforest(e.DEV_TIME AS "TimeDevPhase",e.DT_CODE AS "TimeDevCode"))
                                                                                                                                                 )--xmlagg3
FROM ARS_EMPLOYEE e
WHERE e.EMPID = b.EMPID
AND e.DOJ = b.DOJ
AND e.TRAINING_TYPE = b.TRAINING_TYPE
AND e.TRAINING_CODE = b.TRAINING_CODE
AND e.TCODE = b.TCODE
                                                                                                                                       GROUP BY e.EMPID,e.DOJ,e.TRAINING_TYPE,e.TRAINING_CODE,e.TCODE                                                                                                                                                                          
                                                                                                                                       )--select2
)--xmlagg2
FROM (SELECT DISTINCT
c.EMPID
, c.DOJ
, c.TRAINING_TYPE
, c.TRAINING_CODE
, c.TCODE
FROM ARS_EMPLOYEE c
                                                                                          --ORDER BY c.ID DESC
                                                                                          ) b
WHERE b.EMPID = a.EMPID
AND b.DOJ = a.DOJ
AND b.TRAINING_TYPE = a.TRAINING_TYPE
                                                                                GROUP BY b.EMPID,b.DOJ,b.TRAINING_TYPE
) -- doj
)--Company
,xmlformat.createformat('COMPANY'))
,xmlformat.createformat('COMPANY_MAIN')).getClobval()
INTO l_clob
FROM (SELECT DISTINCT d.EMPID,d.DOJ,d.TRAINING_TYPE FROM ARS_EMPLOYEE d)a
WHERE EMPID = '1'
AND DOJ = '12-MAY-1985'
GROUP BY EMPID,DOJ
INSERT INTO Ars_Employee_XML VALUES (1,l_clob,(SELECT TO_CHAR(SYSDATE,'yyyy-mm-dd') FROM dual));
END;
EMPID     DOJ     TRAINING_TYPE     TRAINING_CODE     TCODE     DEV_PHASE     DEV_TIME     DT_CODE
1     12-MAY-1985     WBT     1     GEN     RA     11     GEN
1     12-MAY-1985     WBT     1     GEN     IA     22     GEN
1     12-MAY-1985     WBT     1     GEN     FS     33     GEN
1     12-MAY-1985     WBT     1     GEN     TS     44     GEN
1     12-MAY-1985     WBT     1     GEN     UTP     55     GEN
1     12-MAY-1985     WBT     1     GEN     CODING     66     GEN
1     12-MAY-1985     WBT     2     GEN     RA     21     GEN
1     12-MAY-1985     WBT     2     GEN     IA     22     GEN
1     12-MAY-1985     WBT     2     GEN     FS     23     GEN
1     12-MAY-1985     WBT     2     GEN     TS     24     GEN
1     12-MAY-1985     WBT     2     GEN     UTP     25     GEN
1     12-MAY-1985     WBT     2     GEN     CODING     26     GEN
1     12-MAY-1985     WBT     3     GEN     RA     31     GEN
1     12-MAY-1985     WBT     3     GEN     IA     32     GEN
1     12-MAY-1985     WBT     3     GEN     FS     33     GEN
1     12-MAY-1985     WBT     3     GEN     TS     34     GEN
1     12-MAY-1985     WBT     3     GEN     UTP     35     GEN
1     12-MAY-1985     WBT     3     GEN     CODING     36     GEN
1     12-MAY-1985     WBT     4     GEN     RA     41     GEN
1     12-MAY-1985     WBT     4     GEN     IA     42     GEN
1     12-MAY-1985     WBT     4     GEN     FS     43     GEN
1     12-MAY-1985     WBT     4     GEN     TS     44     GEN
1     12-MAY-1985     WBT     4     GEN     UTP     45     GEN
1     12-MAY-1985     WBT     4     GEN     CODING     46     GEN
1     12-MAY-1985     WBT     5     GEN     RA     51     GEN
1     12-MAY-1985     WBT     5     GEN     IA     52     GEN
1     12-MAY-1985     WBT     5     GEN     FS     53     GEN
1     12-MAY-1985     WBT     5     GEN     TS     54     GEN
1     12-MAY-1985     WBT     5     GEN     UTP     55     GEN
1     12-MAY-1985     WBT     5     GEN     CODING     56     GEN
1     12-MAY-1985     WBT     6     GEN     RA     61     GEN
1     12-MAY-1985     WBT     6     GEN     IA     62     GEN
1     12-MAY-1985     WBT     6     GEN     FS     63     GEN
1     12-MAY-1985     WBT     6     GEN     TS     64     GEN
1     12-MAY-1985     WBT     6     GEN     UTP     65     GEN
1     12-MAY-1985     WBT     6     GEN     CODING     66     GEN
<?xml version="1.0"?>
<COMPANY_MAIN>
<COMPANY>
<COMPANY_MAIN>
<COMPANY>
<EmployeeId>1</EmployeeId>
<DOJ>
<DateOfJoining>1985-05-12</DateOfJoining>
<Training_TypeItem>
<Training_Type>WBT</Training_Type>
<Training_TypeBal>
<Training_TypeAmt>
<TrainingCode>1</TrainingCode>
<TCode>GEN</TCode>
</Training_TypeAmt>
<DevlopmentPhaseTotal>
<DevlopmentPhase>RA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>11</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>IA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>22</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>FS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>33</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>UTP</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>55</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>CODING</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>66</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>TS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>44</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
</Training_TypeBal>
</Training_TypeItem>
<Training_TypeItem>
<Training_Type>WBT</Training_Type>
<Training_TypeBal>
<Training_TypeAmt>
<TrainingCode>2</TrainingCode>
<TCode>GEN</TCode>
</Training_TypeAmt>
<DevlopmentPhaseTotal>
<DevlopmentPhase>RA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>21</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>IA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>22</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>FS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>23</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>UTP</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>25</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>CODING</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>26</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>TS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>24</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
</Training_TypeBal>
</Training_TypeItem>
<Training_TypeItem>
<Training_Type>WBT</Training_Type>
<Training_TypeBal>
<Training_TypeAmt>
<TrainingCode>3</TrainingCode>
<TCode>GEN</TCode>
</Training_TypeAmt>
<DevlopmentPhaseTotal>
<DevlopmentPhase>RA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>31</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>IA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>32</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>FS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>33</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>UTP</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>35</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>CODING</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>36</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>TS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>34</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
</Training_TypeBal>
</Training_TypeItem>
<Training_TypeItem>
<Training_Type>WBT</Training_Type>
<Training_TypeBal>
<Training_TypeAmt>
<TrainingCode>5</TrainingCode>
<TCode>GEN</TCode>
</Training_TypeAmt>
<DevlopmentPhaseTotal>
<DevlopmentPhase>RA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>51</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>IA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>52</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>FS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>53</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>UTP</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>55</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>CODING</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>56</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>TS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>54</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
</Training_TypeBal>
</Training_TypeItem>
<Training_TypeItem>
<Training_Type>WBT</Training_Type>
<Training_TypeBal>
<Training_TypeAmt>
<TrainingCode>6</TrainingCode>
<TCode>GEN</TCode>
</Training_TypeAmt>
<DevlopmentPhaseTotal>
<DevlopmentPhase>RA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>61</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>IA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>62</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>FS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>63</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>UTP</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>65</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>CODING</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>66</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>TS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>64</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
</Training_TypeBal>
</Training_TypeItem>
<Training_TypeItem>
<Training_Type>WBT</Training_Type>
<Training_TypeBal>
<Training_TypeAmt>
<TrainingCode>4</TrainingCode>
<TCode>GEN</TCode>
</Training_TypeAmt>
<DevlopmentPhaseTotal>
<DevlopmentPhase>RA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>41</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>IA</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>42</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>FS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>43</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>UTP</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>45</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>CODING</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>46</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
<DevlopmentPhaseTotal>
<DevlopmentPhase>TS</DevlopmentPhase>
<TotalCurAmt>
<TimeDevPhase>44</TimeDevPhase>
<TimeDevCode>GEN</TimeDevCode>
</TotalCurAmt>
</DevlopmentPhaseTotal>
</Training_TypeBal>
</Training_TypeItem>
</DOJ>
</COMPANY>
</COMPANY_MAIN>
</COMPANY>
</COMPANY_MAIN>