XML/XPath question--how to select a range of elements with XPath?

Hi there,
I have an XML DOM in memory. I need to do hold it and issue only parts of it to my client app in "pages". Each page would be a self-contained XML doc, but would be a subset of the original doc. So for instance the first page is top-level elements 1-5. 2nd page would be 6-10 etc. Is this solution best solved with XPath? If not, what's the best way? If so, I have the following question:
Is there a way to use XPath to select a range of nodes based on position within the document? I know I can do an XPath query that will return a single Node based on position. So for example if I wanted the first node in some XML Book Catalog I could do XPathAPI.selectSingleNode(doc, "/Catalog/Book[position()=1]"); I could wrap the previous call in a loop, replacing the numeric literal each time, but that seems horribly inefficient.
Any ideas? Thanks much in advance!
Toby Buckley

Your question is about marking a range of cells. 99% of the code posted has nothing to do with this. If you want to create a simple table for test purposes then just do:
JTable table = new JTable(10, 5);
JScrollPane scrollPane = new JScrollPane( table );
getContentPane().add( scrollPane );
In three line of code you have a simple demo program.
When I leave the mouse button again, these bunch/range of cells shall stay "marked". table.setCellSelectionEnabled( true );
and I'd like to obtain, say, a vector of a vector containing just those data marked beforeUse the getSelectedRows() and getSelectedColumns() methods for this information. I would suggest you create a Point object to reflect the row/column position and then add the point to an ArrayList.

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Dear expert,
I will briefly explain the scenario:
I have created return po.
Process MIGO w.r.t. return PO- Material document generated.
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Can you Pl extend Ur help and Pl suggest me where (path or transaction) the number ranges can be maintained for the official excise document No.
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om

Dear Friend,
J_1IEXCHDR this table stores the all the excise documents created while excise transactions are done ,
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<?xml version="1.0" encoding="UTF-8"?>

<xs:schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:qbl="http://10.0.1.233:8080/home/cpa/xsd/qbl.xsd" xmlns:xdb="http://xmlns.oracle.com/xdb" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified" version="1.0" xdb:storeVarrayAsTable="true">
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<Line_Item>
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<Item_Name>BBBBBBBB</Item_Name>
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/QBL_Envelope/QBL/QBL_Number,
/QBL_Envelope/QBL/Line_Item/Item_Name,
/QBL_Envelope/QBL/Line_Item/Line_Item_Weight,
/QBL_Envelope/QBL/Line_Item/Line_Item_Cube_Info/Line_Item_Cube
/QBL_Envelope/QBL/Line_Item/Line_Item_Cube_Info/Line_Item_Cube_Qualifier
in a select stetament? (Note that these elements QBL_Number, Line_Item and Item_Name have maxOccurs="unbounded") actually I want to use the select statement to create a view.
I tried the following select statement and it works fine:
select extractValue(value(b), '/QBL/QBL_Number'),
extractValue(value(b), '/QBL/Priority'),
extractValue(value(b), '/QBL/Date_Prepared')
from egbl e, table(xmlsequence(extract(value(e), '/QBL_Envelope/QBL'))) b
Please advise. It is import to us. Thank you for your help in advance!!!
The database version is 9.2.0.3.0 and the operating system is Windows 2000.
Thanks,
Mary Wu

Hi Mark,
Thank you for your reply and I really appreciate!
I tried the select statement you gave me but I got error:
SQL*Plus: Release 9.2.0.3.0 - Production on Fri Aug 1 09:11:03 2003
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.3.0 - Production
With the Partitioning, Oracle Label Security, OLAP and Oracle Data Mining options
JServer Release 9.2.0.3.0 - Production
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SQL> set pagesize 10000
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SYS_NC_ROWINFO$
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<QBL>
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<Priority>3</Priority>
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<Item_Name>FREIGHT ALL KINDS</Item_Name>
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<Line_Item_Cube>31.1</Line_Item_Cube>
<Line_Item_Cube_Qualifier>E</Line_Item_Cube_Qualifier>
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<Line_Item_Weight>0000512</Line_Item_Weight>
<Line_Item_Cube_Info>
<Line_Item_Cube>67.1</Line_Item_Cube>
<Line_Item_Cube_Qualifier>E</Line_Item_Cube_Qualifier>
</Line_Item_Cube_Info>
</Line_Item>
</QBL>
</QBL_Envelope>
SQL> select extractValue(value(q), '/QBL/QBL_Number'),
2 extractValue(value(q), '/QBL/Priority'),
3 extractValue(value(q), '/QBL/Date_Prepared'),
4 extractValue(value(n), '/Item_Name'),
5 extractValue(value(l), '/Line_Item/Line_Item_Weight'),
6 extractValue(value(l), '/Line_Item/Line_Item_Cube_Info/Line_Item_Cube'),
7 extractValue(value(l), '/Line_Item/Line_Item_Cube_Info/Line_Item_Cube_Qualifier')
8 from MYQBL e,
9 table (xmlsequence(extract(value(e), '/QBL_Envelope/QBL'))) q,
10 table (xmlsequence(extract(value(q), '/QBL/Line_Item'))) l,
11 table (xmlsequence(extract(value(l), '/Line_Item/Item_Name'))) n;
select extractValue(value(q), '/QBL/QBL_Number'),
ERROR at line 1:
ORA-00904: "SYS_NT0jPUiVR5SS6VqgqEvU1LkQ=="."SYS_NC_ROWINFO$": invalid
identifier
SQL>
Do you have any idea about it?
Actually before I posted the message I had tried the same select statement and had got the same error.
Again, thank you very much and I really appreciate your help.
Mary Wu

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XML/XPath question--how to select a range of elements with XPath?

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