Mass insert and query

Hi,
We have a table with partition and it would be inserted 3000 rows per second.
According to these insertions performance, we didn't create any index at that table.
Here is a problem, our costumers want to query this table, since the table is huge
and without index, the query performance isn't acceptable.
Any idea to improve the query performance?
Thanks.

hi Dear,
does your costomer want's to query the full table.............if yes then u need not to create indexes .....because it will have full table scan..........if no then pls tell him ur problem and tell him to bear the time it consumes...........and if i found any other solution i will forward it to u...
Regards
Amit Raghuvanshi

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    Dear Professionals:
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    Ahmed.

    Hi,
    >>Network people added 100 pc to the network .. most of them not using the databse only internet. Can this slow down the database Oracle 9.2.0.1.0 OS w2k server ?
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    If you try to execute these DML's (insert, ...) and querys directly on the Server, what's happen ?
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    Hello,
    I'm facing a problem with querying XML data that is valid against a recursive XML Schema. I have got a table category that stores data as binary XML using Oracle 11g Rel 2 on Windows XP. The XML Schema is the following:
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                        <xs:element name="description">
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                                                           <xs:element name="text" type="text_type"/>
                                                           <xs:element name="parlist" type="parlist_type"/>
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                        </xs:element>
    </xs:schema>I registered this schema and created the category table. Then I inserted a new row using the code below:
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    (XMlElement("category",
          xmlattributes('categoryAAA' as "id"),
          xmlforest ('ma categ' as "name"),
          (xmlelement("description", (xmlelement("text", 'find doors blest now whiles favours carriage tailor spacious senses defect threat ope willow please exeunt truest assembly <keyword> staring travels <bold> balthasar parts attach </bold> enshelter two <emph> inconsiderate ways preventions </emph> preventions clasps better affections comes perish </keyword> lucretia permit street full meddle yond general nature whipp <emph> lowness </emph> grievous pedro')))    
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    select * from category
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    Query 2
    select xmlquery('$p/category/description' passing object_value as "p" returning content) from category
    Result: "SYS.XMLTYPE"
    now I tried to fully respect the nested structure of description element in order to extract the text portion of <bold> using this query
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    Result: null
    and also tried to extract the text portion of element <text> using this query
    Query 4
    select  xmlquery('$p/category/description/text/text()' passing object_value as "p" returning content) from  category_a
    Result: "SYS.XMLTYPE".
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    2. How to display the data (the text portion of the main Element or of the nested elements).
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    In fact, I need to insert the content of <description> from a source table (called category_a) into a target table (+category_b+) automatically .
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    LSX-00213: only 0 occurrences of particle "text", minimum is 1which tells that the <text> element is absent (actually it is present in the source table).
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    Hello,
    indded, I was using an old version of Sqlplus* (8.0.60.0.0) because I had a previous installation (oracle 10g XE). Instead, I used the Sqlplus* shipped with the 11g2database (version 11.2.0.1.0). All the queries that I wrote work fine and display the data correctly.
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    <xs:complexType name="bold_type" mixed="true">
              <xs:choice minOccurs="0" maxOccurs="unbounded">
                   <xs:element name="bold" type="bold_type"/>
                   <xs:element name="keyword" type="keyword_type"/>
                   <xs:element name="emph" type="emph_type"/>
              </xs:choice>
         </xs:complexType>
         <xs:complexType name="keyword_type" mixed="true">
              <xs:choice minOccurs="0" maxOccurs="unbounded">
                   <xs:element name="bold" type="bold_type"/>
                   <xs:element name="keyword" type="keyword_type"/>
                   <xs:element name="emph" type="emph_type"/>
                   <xs:element name="plain_text" type="xs:string"/>
              </xs:choice>
         </xs:complexType>
         <xs:complexType name="emph_type" mixed="true">
              <xs:choice minOccurs="0" maxOccurs="unbounded">
                   <xs:element name="bold" type="bold_type"/>
                   <xs:element name="keyword" type="keyword_type"/>
                   <xs:element name="emph" type="emph_type"/>
              </xs:choice>
         </xs:complexType>
         <xs:complexType name="text_type" mixed="true">
              <xs:choice minOccurs="0" maxOccurs="unbounded">
                   <xs:element name="bold" type="bold_type"/>
                   <xs:element name="keyword" type="keyword_type"/>
                   <xs:element name="emph" type="emph_type"/>
              </xs:choice>
         </xs:complexType>
         <xs:complexType name="parlist_type">
              <xs:sequence>
                   <xs:element name="listitem" minOccurs="0" maxOccurs="unbounded" type="listitem_type"/>
              </xs:sequence>
         </xs:complexType>
         <xs:complexType name="listitem_type">
              <xs:choice minOccurs="0" maxOccurs="unbounded">
                   <xs:element name="parlist" type="parlist_type"/>
                   <xs:element name="text" type="text_type"/>
              </xs:choice>
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         <xs:element name="category">
              <xs:complexType>
                   <xs:sequence>
                        <xs:element name="name"/>
                        <xs:element name="description">
                                  <xs:complexType>
                                            <xs:choice>
                                                           <xs:element name="text" type="text_type"/>
                                                           <xs:element name="parlist" type="parlist_type"/>
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                                                                </xs:sequence>
                                                                <xs:attribute name="id"/>
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                        </xs:element>
    </xs:schema>';
    begin
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            GENTYPES   => FALSE,  GENBEAN    => FALSE,   GENTABLES  => FALSE,
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             OPTIONS    => DBMS_XMLSCHEMA.REGISTER_BINARYXML,
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    Doulkifli

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