Xml newbie - multiple loops for children in xml?

Hi all,
I am hoping someone can help me with this!
I have what I guess is a pretty basic xml that I need to parse and insert in a table. I have the basic code where I loop through the node list and assign values in the table type, and then insert into the table.
However, I have multiple levels of data that I plan to insert in one de-normailized table. So, for example:
<POHDR>
.. some fields...
<POLINE>... several fields of info ...
<PODISTLINE> ... more pieces of info ...
</PODISTLINE>
</POLINE>
<POLINE>... several fields of info ...
<PODISTLINE> ... more pieces of info ...
</PODISTLINE>
<PODISTLINE> ... more pieces of info ...
</PODISTLINE>
</POLINE>
.. multiple such lines
<POHDR>
<POHDR>
<POLINE>... several fields of info ...
<PODISTLINE> ... more pieces of info ...
</PODISTLINE>
</POLINE>
<POLINE>... several fields of info ...
<PODISTLINE> ... more pieces of info ...
</PODISTLINE>
<PODISTLINE> ... more pieces of info ...
</PODISTLINE>
</POLINE>
.. multiple such lines
<POHDR>
All this would go in one staging table with multiple lines of po_header, po_lines and distribution lines information.
I have the pretty basic generic code, where I do the loop and assign values:
v_parser := xmlparser.newParser;
xmlparser.parseclob (v_parser, p_po_clob_file);
v_doc := xmlparser.getDocument (v_parser);
xmlparser.freeparser (v_parser);
v_po_nl := xslprocessor.selectNodes(xml.makeNode(v_doc), 'POFILE');
FOR i in 0.. sys.xmldom.getLength(v_po_nl)-1 LOOP
v_po_n := sys.xmldom.item(v_po_nl, i)
v_po_rec.extend;
v_po_rec(v_po_rec.last).ponum := sys.xslprocessor.valueOf(v_po_n, 'PONUM');
...... etc.
... and then the insert.
But I don't know what to do about getting the PO line and PO Distribution line child items. I guess I could do :
v_po_rec(v_po_rec.last).polinnum := sys.xslprocessor.valueOf(v_po_n, 'POLINNUM');
but wouldn't I need to do another loop to find the child line items - and then another to get line distributions?
Please help!
Thanks a lot!

Thanks - and yes, understood.
However, my XMLType data is not in a XMLType table (just a column of a regular table), so I cannot use the extract functions.
I am not using XML Schemas - right now that is not in the works. We may look into that later.
I did try using xmlsave - but again, that just saves the data in top rowset (PO Header, and does not insert any line items in the table)
Isn't there a way to do this with just a loop? I tried looking at your child example Re: How to use PL/SQL to read and manipulate data from a xml file , but that does not loop to go through multiple children..
Is there a way to do this with a loop using xmldom? Or a way to do it using xmlsave (but also saving the child rowsets?
Again, any help will be most appreciated - if you can tell me there isn't then I will look into one of the other options.
Thanks again!

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sum(TOTAL_EXCL_VAT),sum(case when instr(LEVEL2,:"SYS_B_0")>:"SYS_B_1"
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RATOR_CDR.INVOICE_DETAIL_LINE I INNER JOIN SUBSCRIPTION S ON S.ID =
I.SUBSCRIPTION_ID inner join SERVICE S1 on S1.SUBSCRIPTION_ID=S.ID
WHERE INVOICE_ID in (SELECT id from RATOR.INVOICE WHERE
invoice_number is null) and S1.PHONE_NUMBER=:1   and LEVEL1=:2 group
by INVOICE_ID
Plan hash value: 216300602
| Id | Operation                            | Name                  | Rows | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
|   0 | SELECT STATEMENT                     |                       |       |       | 1350 (100)|       |          |       |
|   1 | HASH GROUP BY                       |                       |   333 | 40293 | 1350   (1)| 00:00:17 |       |       |
|   2 |   HASH JOIN                          |                       |   333 | 40293 | 1348   (1)| 00:00:17 |       |       |
|   3 |    NESTED LOOPS                      |                       |       |       |            |       |          |       |
|   4 |     NESTED LOOPS                     |                       | 1638 |   161K|   866   (0)| 00:00:11 |       |       |
|   5 |      NESTED LOOPS                    |                       |     1 |    34 |     2   (0)| 00:00:01 |       |       |
|   6 |       TABLE ACCESS BY INDEX ROWID    | SERVICE               |     1 |    23 |     2   (0)| 00:00:01 |       |       |
|   7 |        INDEX RANGE SCAN              | SERVICE__PHONE_NUMBER |     1 |       |     1   (0)| 00:00:01 |       |       |
|   8 |       INDEX UNIQUE SCAN              | SUBSCRIPTION__ID_PK   |     1 |    11 |     0   (0)|       |          |       |
|   9 |      PARTITION RANGE ALL             |                       | 1684 |       |    46   (0)| 00:00:01 |     1 |    17 |
| 10 |       INDEX RANGE SCAN               | IDL_SUB_ID            | 1684 |       |    46   (0)| 00:00:01 |     1 |    17 |
| 11 |     TABLE ACCESS BY LOCAL INDEX ROWID| INVOICE_DETAIL_LINE   | 1581 |   103K|   864   (0)| 00:00:11 |     1 |     1 |
| 12 |    TABLE ACCESS FULL                 | INVOICE               | 6048 |   118K|   481   (1)| 00:00:06 |       |       |
SQL_ID 5z1r29wc6514q
SELECT INVOICE_ID,min(CHARGE_DATE),MAX(CHARGE_DATE),
sum(TOTAL_EXCL_VAT),sum(case when instr(LEVEL2,:"SYS_B_0")>:"SYS_B_1"
then SUM_QUANTITY else :"SYS_B_2" end) as KB from
RATOR_CDR.INVOICE_DETAIL_LINE I INNER JOIN SUBSCRIPTION S ON S.ID =
I.SUBSCRIPTION_ID inner join SERVICE S1 on S1.SUBSCRIPTION_ID=S.ID
WHERE INVOICE_ID in (SELECT id from RATOR.INVOICE WHERE
invoice_number is null) and S1.PHONE_NUMBER=:1   and LEVEL1=:2 group
by INVOICE_ID
Plan hash value: 1282779260
| Id | Operation                            | Name                  | Rows | Bytes | Cost (%CPU)| Time     | Pstart| Pstop |
PLAN_TABLE_OUTPUT
|   0 | SELECT STATEMENT                     |                       |       |       | 1392 (100)|       |          |       |
|   1 | HASH GROUP BY                       |                       |   325 | 39000 | 1392   (1)| 00:00:17 |       |       |
|   2 |   HASH JOIN                          |                       |   325 | 39000 | 1391   (1)| 00:00:17 |       |       |
|   3 |    TABLE ACCESS FULL                 | INVOICE               | 5972 |   116K|   550   (1)| 00:00:07 |       |       |
|   4 |    NESTED LOOPS                      |                       |       |       |            |       |          |       |
|   5 |     NESTED LOOPS                     |                       | 1794 |   175K|   840   (0)| 00:00:11 |       |       |
|   6 |      NESTED LOOPS                    |                       |     1 |    34 |     2   (0)| 00:00:01 |       |       |
|   7 |       TABLE ACCESS BY INDEX ROWID    | SERVICE               |     1 |    23 |     2   (0)| 00:00:01 |       |       |
|   8 |        INDEX RANGE SCAN              | SERVICE__PHONE_NUMBER |     1 |       |     1   (0)| 00:00:01 |       |       |
|   9 |       INDEX UNIQUE SCAN              | SUBSCRIPTION__ID_PK   |     1 |    11 |     0   (0)|       |          |       |
| 10 |      PARTITION RANGE ALL             |                       | 1836 |       |    48   (0)| 00:00:01 |     1 |    18 |
| 11 |       INDEX RANGE SCAN               | IDL_SUB_ID            | 1836 |       |    48   (0)| 00:00:01 |     1 |    18 |
| 12 |     TABLE ACCESS BY LOCAL INDEX ROWID| INVOICE_DETAIL_LINE   | 1722 |   110K|   838   (0)| 00:00:11 |     1 |     1 |
------------------------------------------------------------------------------------------------------------------------------also, Any suggestions to tune this query
Thanks

Harry wrote:
11gr2, windows-64-bit
I have one sql_id part of 3rd part application, need to tune it. how do plan on modifying 3 ^rd^ party application?

Producer loop and 2 consumer loop for acquisition and process images

Hello everybody,
I'm quite a newbie in Labview 2011 on Windows 7.
Those are what I want to do :
Step 1: When the objects fall with velocity around 2 to 5 m/s, images of these objects will be acquired continuously from PCIe 1433 with Basler spL4096-39kc.
Step 2: The processing of the images continuously in the same time with step 1 will find the datas of the objects in images as colors, patterns and locations. If the patterns and colors at location are as the same sample, the elements in Boolean data array are true.
Step 3: Every 01 millisecond, values from Boolean data array will be read, the valves of nozzle will be opened if the values are true.
My question is what is the best way to do my tasks ? I couldn't find any example of program in Labview and I think I use producer/consumer architecture for step 1 and 2 but I don't know how can I set up producer loop for step 3 and transfer Boolean data array from step 2 to step 3 ?
Thank you for reading and help me !

Dear Eric-J,
Thanks for your reply. I want sort the pellets that have 6mm diameter. The pellets were fed in a single layer by a vibratory feeder with a flat-bottom trough, 400mm wide that was supplied with the feeder . The pellets dropped off the end of the feeder onto a chute with 40 parallel U-shaped grooves. Images of these pellets will be acquired continuously. I make the sample from image that was acquired. I use NI Vision for processing of the images. If the patterns and colors of pellets are as the same sample, the elements in boolean data array are true. As you thought, I would like to interpret data every millisecond and open/close a valve based on the boolean array. The air valve sends a burst of air for 2 - 3 milliseconds to an air nozzle that diverts the pellets into the appropriate channel.
What are your ideas for this task ? Could you explain more clearly about "a real time system" and "determinism" for this task ?
Thanks and best regards

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How to uploade multiple flatfiles for single transaction using BDC?

Hi,
You need to upload all data files into an internal table first either using OPEN DATASET (application server files) or GUI_UPLOAD (PC files).
Then loop at the internal table and call BDC transaction to process the data.
Regards,
Ferry Lianto

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