XML to Table Stracture

Question

i have a batch structure in XML template:-
- <BATCH customer="ABC" name="ABC1" type="ABC_TYPE">
- <BATCH_SECTIONS>
- <SECTION name="X" dependency="NULL">
- <JOB_SECTIONS name="JOB1" dependency="NULL" >
- <JOBS>
<JOB type="X" sub_type="xx" dependency="NULL" />
<JOB type="X" sub_type="yy" dependency="NULL" />
<JOB type="X" sub_type="zz" dependency="NULL" />
</JOBS>
</JOB_SECTIONS>
</SECTION>
- <SECTION name="Y" dependency="X">
- <JOB_SECTIONS name="JOB2" dependency="X" >
- <JOBS>
<JOB type="Y" sub_type="xx" dependency="X" />
<JOB type="Y" sub_type="yy" dependency="X" />
<JOB type="Y" sub_type="zz" dependency="X" />
</JOBS>
</JOB_SECTIONS>
</SECTION>
- <SECTION name="Z" dependency="Y">
- <JOB_SECTIONS name="JOB3" dependency="NULL" >
- <JOBS>
<JOB type="....." sub_type="...." dependency="NULL" />
</JOBS>
</JOB_SECTIONS>
- <JOB_SECTIONS name="JOB4" dependency="NULL">
- <JOBS>
<JOB type="...." sub_type="...." dependency="NULL" />
</JOBS>
</JOB_SECTIONS>
</SECTION>
</BATCH_SECTIONS>
</BATCH>
1.Batch Structure having 3 section:-X,Y,Z
2.each section having :-one job-section (Z section having 2 JOB SECTION)
3.there is a dependency between sections.- completion of Y depends on X and completion of Z depend on completion of Y
4.Z-section having 2 JOB SECTION :- JOB3 and JOB4
My question is that i want to convert this XML template structure into a ORACLE table .
Regards
Amu_2007

Answer 1

With your own XML, something like this perhaps:
SQL> ed
Wrote file afiedt.buf
  1  WITH t as (select XMLTYPE('
  2  <BATCH customer="ABC" name="ABC1" type="ABC_TYPE">
  3    <BATCH_SECTIONS>
  4      <SECTION name="X" dependency="NULL">
  5        <JOB_SECTIONS name="JOB1" dependency="NULL" >
  6          <JOBS>
  7            <JOB type="X" sub_type="xx" dependency="NULL" />
  8            <JOB type="X" sub_type="yy" dependency="NULL" />
  9            <JOB type="X" sub_type="zz" dependency="NULL" />
10          </JOBS>
11        </JOB_SECTIONS>
12      </SECTION>
13      <SECTION name="Y" dependency="X">
14        <JOB_SECTIONS name="JOB2" dependency="X" >
15          <JOBS>
16            <JOB type="Y" sub_type="xx" dependency="X" />
17            <JOB type="Y" sub_type="yy" dependency="X" />
18            <JOB type="Y" sub_type="zz" dependency="X" />
19          </JOBS>
20        </JOB_SECTIONS>
21      </SECTION>
22      <SECTION name="Z" dependency="Y">
23        <JOB_SECTIONS name="JOB3" dependency="NULL" >
24          <JOBS>
25            <JOB type="....." sub_type="...." dependency="NULL" />
26          </JOBS>
27        </JOB_SECTIONS>
28        <JOB_SECTIONS name="JOB4" dependency="NULL">
29          <JOBS>
30            <JOB type="...." sub_type="...." dependency="NULL" />
31          </JOBS>
32        </JOB_SECTIONS>
33      </SECTION>
34    </BATCH_SECTIONS>
35  </BATCH>
36  ') as xml from dual)
37  --
38  -- END OF TEST DATA
39  --
40  select a.customer, a.cust_name, a.cust_type
41        ,b.bat_name, NULLIF(b.bat_dependency,'NULL') as bat_dependency
42        ,c.job_sect_name, NULLIF(c.job_sect_dependency,'NULL') as job_sect_dependency
43        ,d.job_type, d.job_sub_type, NULLIF(d.job_dependency,'NULL') as job_dependency
44  from t
45      ,XMLTABLE('/BATCH'
46                PASSING t.xml
47                COLUMNS customer     VARCHAR2(10) PATH '/BATCH/@customer'
48                       ,cust_name    VARCHAR2(10) PATH '/BATCH/@name'
49                       ,cust_type    VARCHAR2(10) PATH '/BATCH/@type'
50                       ,bat_sections XMLTYPE PATH '/BATCH/BATCH_SECTIONS'
51               ) a
52      ,XMLTABLE('/BATCH_SECTIONS/SECTION'
53                PASSING a.bat_sections
54                COLUMNS bat_name        VARCHAR2(10) PATH '/SECTION/@name'
55                       ,bat_dependency  VARCHAR2(10) PATH '/SECTION/@dependency'
56                       ,section         XMLTYPE      PATH '/SECTION'
57               ) b
58      ,XMLTABLE('/SECTION/JOB_SECTIONS'
59                PASSING b.section
60                COLUMNS job_sect_name        VARCHAR2(10) PATH '/JOB_SECTIONS/@name'
61                       ,job_sect_dependency  VARCHAR2(10) PATH '/JOB_SECTIONS/@dependency'
62                       ,job_sections         XMLTYPE      PATH '/JOB_SECTIONS'
63               ) c
64      ,XMLTABLE('/JOB_SECTIONS/JOBS/JOB'
65                PASSING c.job_sections
66                COLUMNS job_type        VARCHAR2(10) PATH '/JOB/@type'
67                       ,job_sub_type    VARCHAR2(10) PATH '/JOB/@sub_type'
68                       ,job_dependency  VARCHAR2(10) PATH '/JOB/@dependency'
69*              ) d
SQL> /
CUSTOMER   CUST_NAME  CUST_TYPE  BAT_NAME   BAT_DEPEND JOB_SECT_N JOB_SECT_D JOB_TYPE   JOB_SUB_TY JOB_DEPEND
ABC        ABC1       ABC_TYPE   X                     JOB1                  X          xx
ABC        ABC1       ABC_TYPE   X                     JOB1                  X          yy
ABC        ABC1       ABC_TYPE   X                     JOB1                  X          zz
ABC        ABC1       ABC_TYPE   Y          X          JOB2       X          Y          xx         X
ABC        ABC1       ABC_TYPE   Y          X          JOB2       X          Y          yy         X
ABC        ABC1       ABC_TYPE   Y          X          JOB2       X          Y          zz         X
ABC        ABC1       ABC_TYPE   Z          Y          JOB3                  .....      ....
ABC        ABC1       ABC_TYPE   Z          Y          JOB4                  ....       ....
8 rows selected.
SQL>Edited by: BluShadow on Mar 24, 2010 7:53 AM
Missed a level. ;)