Can we express batch relationship structure in XML in the database table

Question

Hi
please help me ..
i have a batch XML batch structure ...can we express batch relationship structure in XML in tha database table?
yes..then how?
Thanks
Amu
Edited by: amu_2007 on Mar 25, 2010 6:57 PM
Edited by: amu_2007 on Mar 25, 2010 7:03 PM

Answer 1

But what is the problem with the initial solution given that split the XML into the data?
I mean you could do something like this?
SQL> create table batch (customer    VARCHAR2(10)
  2                     ,cust_name   VARCHAR2(10)
  3                     ,cust_type   VARCHAR2(10)
  4                     )
  5  /
Table created.
SQL>
SQL> create table section (customer    VARCHAR2(10)
  2                       ,sect_name   VARCHAR2(10)
  3                       ,sect_depend VARCHAR2(10)
  4                       )
  5  /
Table created.
SQL> create table job_sections (customer        VARCHAR2(10)
  2                            ,sect_name       VARCHAR2(10)
  3                            ,job_sect_name   VARCHAR2(10)
  4                            ,job_sect_depend VARCHAR2(10)
  5                            )
  6  /
Table created.
SQL> create table job (customer        VARCHAR2(10)
  2                   ,sect_name       VARCHAR2(10)
  3                   ,job_sect_name   VARCHAR2(10)
  4                   ,job_type        VARCHAR2(10)
  5                   ,job_sub_type    VARCHAR2(10)
  6                   ,job_depend      VARCHAR2(10)
  7                   )
  8  /
Table created.
SQL>
SQL>
SQL> insert all
  2    when batch_rn = 1 then
  3      into batch (customer, cust_name, cust_type) values (customer, cust_name, cust_type)
  4    when section_rn = 1 then
  5      into section (customer, sect_name, sect_depend) values (customer, sect_name, sect_dependency)
  6    when job_sections_rn = 1 then
  7      into job_sections (customer, sect_name, job_sect_name, job_sect_depend) values (customer, sect_name, job_sect_name, job_sect_dependency)
  8    when 1=1 then
  9      into job (customer, sect_name, job_sect_name, job_type, job_sub_type, job_depend) values (customer, sect_name, job_sect_name, job_type, jo
10  --
11  WITH t as (select XMLTYPE('
12  <BATCH customer="ABC" name="ABC1" type="ABC_TYPE">
13    <BATCH_SECTIONS>
14      <SECTION name="X" dependency="NULL">
15        <JOB_SECTIONS name="JOB1" dependency="NULL" >
16          <JOBS>
17            <JOB type="X" sub_type="xx" dependency="NULL" />
18            <JOB type="X" sub_type="yy" dependency="NULL" />
19            <JOB type="X" sub_type="zz" dependency="NULL" />
20          </JOBS>
21        </JOB_SECTIONS>
22      </SECTION>
23      <SECTION name="Y" dependency="X">
24        <JOB_SECTIONS name="JOB2" dependency="X" >
25          <JOBS>
26            <JOB type="Y" sub_type="xx" dependency="X" />
27            <JOB type="Y" sub_type="yy" dependency="X" />
28            <JOB type="Y" sub_type="zz" dependency="X" />
29          </JOBS>
30        </JOB_SECTIONS>
31      </SECTION>
32      <SECTION name="Z" dependency="Y">
33        <JOB_SECTIONS name="JOB3" dependency="NULL" >
34          <JOBS>
35            <JOB type="....." sub_type="...." dependency="NULL" />
36          </JOBS>
37        </JOB_SECTIONS>
38        <JOB_SECTIONS name="JOB4" dependency="NULL">
39          <JOBS>
40            <JOB type="...." sub_type="...." dependency="NULL" />
41          </JOBS>
42        </JOB_SECTIONS>
43      </SECTION>
44    </BATCH_SECTIONS>
45  </BATCH>
46  ') as xml from dual)
47  --
48  -- END OF TEST DATA
49  --
50  ,flat as (select a.customer, a.cust_name, a.cust_type
51                  ,b.sect_name, NULLIF(b.sect_dependency,'NULL') as sect_dependency
52                  ,c.job_sect_name, NULLIF(c.job_sect_dependency,'NULL') as job_sect_dependency
53                  ,d.job_type, d.job_sub_type, NULLIF(d.job_dependency,'NULL') as job_dependency
54            from t
55                ,XMLTABLE('/BATCH'
56                          PASSING t.xml
57                          COLUMNS customer     VARCHAR2(10) PATH '/BATCH/@customer'
58                                 ,cust_name    VARCHAR2(10) PATH '/BATCH/@name'
59                                 ,cust_type    VARCHAR2(10) PATH '/BATCH/@type'
60                                 ,bat_sections XMLTYPE PATH '/BATCH/BATCH_SECTIONS'
61                         ) a
62                ,XMLTABLE('/BATCH_SECTIONS/SECTION'
63                          PASSING a.bat_sections
64                          COLUMNS sect_name        VARCHAR2(10) PATH '/SECTION/@name'
65                                 ,sect_dependency  VARCHAR2(10) PATH '/SECTION/@dependency'
66                                 ,section         XMLTYPE      PATH '/SECTION'
67                         ) b
68                ,XMLTABLE('/SECTION/JOB_SECTIONS'
69                          PASSING b.section
70                          COLUMNS job_sect_name        VARCHAR2(10) PATH '/JOB_SECTIONS/@name'
71                                 ,job_sect_dependency  VARCHAR2(10) PATH '/JOB_SECTIONS/@dependency'
72                                 ,job_sections         XMLTYPE      PATH '/JOB_SECTIONS'
73                         ) c
74                ,XMLTABLE('/JOB_SECTIONS/JOBS/JOB'
75                          PASSING c.job_sections
76                          COLUMNS job_type        VARCHAR2(10) PATH '/JOB/@type'
77                                 ,job_sub_type    VARCHAR2(10) PATH '/JOB/@sub_type'
78                                 ,job_dependency  VARCHAR2(10) PATH '/JOB/@dependency'
79                         ) d
80            )
81  --
82  select customer, cust_name, cust_type, sect_name, sect_dependency, job_sect_name, job_sect_dependency, job_type, job_sub_type, job_dependency
83        ,row_number() over (partition by customer order by 1) as batch_rn
84        ,row_number() over (partition by customer, sect_name order by 1) as section_rn
85        ,row_number() over (partition by customer, sect_name, job_sect_name order by 1) as job_sections_rn
86  from flat
87  /
16 rows created.
SQL> select * from batch;
CUSTOMER   CUST_NAME  CUST_TYPE
ABC        ABC1       ABC_TYPE
SQL> select * from section;
CUSTOMER   SECT_NAME  SECT_DEPEN
ABC        X
ABC        Y          X
ABC        Z          Y
SQL> select * from job_sections;
CUSTOMER   SECT_NAME  JOB_SECT_N JOB_SECT_D
ABC        X          JOB1
ABC        Y          JOB2       X
ABC        Z          JOB3
ABC        Z          JOB4
SQL> select * from job;
CUSTOMER   SECT_NAME  JOB_SECT_N JOB_TYPE   JOB_SUB_TY JOB_DEPEND
ABC        X          JOB1       X          xx
ABC        X          JOB1       X          yy
ABC        X          JOB1       X          zz
ABC        Y          JOB2       Y          xx         X
ABC        Y          JOB2       Y          yy         X
ABC        Y          JOB2       Y          zz         X
ABC        Z          JOB3       .....      ....
ABC        Z          JOB4       ....       ....
8 rows selected.
SQL>But it would depend what you are actually after in terms of primary keys, and table relationships etc.
Let me put this simply for you...
h1. IF YOU DON'T DEMONSTRATE TO US WHAT OUTPUT YOU REQUIRE, WE CAN'T GIVE YOU AN ANSWER