Dynamic partitioning in 10g -

Hi,
I am on 10g and need to implement dynamic partitioning.
In a table based on a column I need to implement dynamic partitioning .
id
name
value
1
name1
val1
2
name1
val2
3
name2
val3
4
name2
val4
5
name2
val5
From the above table for each name uniquely (i.e for name1 ,name2 ) different partitions have to be created.
If a name3 is added a new partition has to be created dynamically.
If the column value is deleted (if name1 is deleted) the relevant partition should also be deleted
Please suggest on how to achieve this .
Thanks

Dynamic partitioning isn't available in Oracle 10g. It's there starting with 11g with the name 'Interval Partitioning'.
If a name3 is added a new partition has to be created dynamically.
If you are on 10g, the only option you have is to create partitions ahead of time. Oracle won't create it for you dynamically.
If the column value is deleted (if name1 is deleted) the relevant partition should also be deleted
This too would have to be done manually. If you delete a particular row or even entire set from the partition, the partition still exists. You need to drop the partition explicitly. It can be truncated as well. And this remains same in 10g and 11g.
Having said that, partitioning in general a feature of DWH. You truncate entire partition and load it back again. Updates and deletes for a small set or a single row, in general, is not a feature that normally goes with the partitioning.
Thanks,
Ishan

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          <xs:restriction base="xs:string">
               <xs:minLength value="0"/>
               <xs:maxLength value="20"/>
          </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="PurchaseOrderNumberType">
          <xs:restriction base="xs:integer"/>
     </xs:simpleType>
     <xs:simpleType name="SpecialInstructionsType">
          <xs:restriction base="xs:string">
               <xs:minLength value="0"/>
               <xs:maxLength value="2048"/>
          </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="NameType">
          <xs:restriction base="xs:string">
               <xs:minLength value="1"/>
               <xs:maxLength value="20"/>
          </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="AddressType">
          <xs:restriction base="xs:string">
               <xs:minLength value="1"/>
               <xs:maxLength value="256"/>
          </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="TelephoneType">
          <xs:restriction base="xs:string">
               <xs:minLength value="1"/>
               <xs:maxLength value="24"/>
          </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="DateType">
          <xs:restriction base="xs:date"/>
     </xs:simpleType>
     <xs:simpleType name="CommentsType">
          <xs:restriction base="xs:string">
               <xs:minLength value="1"/>
               <xs:maxLength value="2048"/>
          </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="DescriptionType">
          <xs:restriction base="xs:string">
               <xs:minLength value="1"/>
               <xs:maxLength value="256"/>
          </xs:restriction>
     </xs:simpleType>
</xs:schema>

The view would have to be a union all view, I'm not sure how well XPath re-write would work...
I had writen a union all view to pick from the Parents but how do i write a general view which covers the tables and all their nested tables (and their nest tables nested tables).
Can you help me understand the volume of data you are going to be managing
8,000,000 records in the top tables, there will be an average of 8 nested table rows per parent row foir several items.
the particular benefits you are looking from partitioning in this case...
We get the data from several area sources. Some of these send in a complete refresh of data weekly as opposed to a list of changes. having all the records for an area in the same block will greatly improve times for updates even if we can't blow away and the reload a partition because of the nested tables ( i know this was unavailable with nested tables in 8i )
The option of a clever view could enable swapping by renaming tables in the view which have last weeks data and this weeks already loaded.
Thanks for all help
Trev

What is the best way to dynamically create table partition by year and month based on a date column?

Hi,
I have a huge table and it will keep growing. I have a date column in this table and thought of partition the table by year and month. Can any you suggest better approach so that partition will create automatically for new data also along with the existing
data? Nothing but automatically/dynamically partition should create along with file group and partition files.
Thanks in advance!
Palash

Also this one
http://weblogs.sqlteam.com/dang/archive/2008/08/30/Sliding-Window-Table-Partitioning.aspx
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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