Structure of hybrid data - relational & structural using the XML file

Hello world
I do not understand this conceptualization of the XMLDB maybe not for what and how it was designed for.

I have 100 000 (Mutual Funds) XML files I loaded in the DB Table (XMLType column). (Each XML file is 5 KB of data)
Now, I want to write a SICAV in which I can put 20 different search criteria. (e.g. Type of Fund, Star, ranking etc etc.)
(I paginated resultset to 100 lines per page)

Initially approach I took was to write the XML query using the extractValue function. However, when the results of the research in most large result set, time needed to return query results is huge. Especially at page 100, etc..

As a hybrid approach, when XMLs are loaded into DB, I want to store 20 attributes in separate table and all XML in a separate table.
and when extractValue queries are written to what ORACLE automatically re-writes of applications to use the flat table when it is made reference to specific attributes otherwise it load the XML table.

Suggestions box will be greatly appreciated, if not I can always write queries to load a separate table and query it for the purposes of the screen.

856584 wrote:
Hello world
I do not understand this conceptualization of the XMLDB maybe not for what & how it was designed for.

I was conceived to manage XML, nothing more, nothing less.

I have 100 000 (Mutual Funds) XML files I loaded in the DB Table (XMLType column). (Each XML file is 5 KB of data)
Now, I want to write a SICAV in which I can put 20 different search criteria. (e.g. Type of Fund, Star, ranking etc etc.)
(I paginated resultset to 100 lines per page)

Which version of the database (all the numbers please)?

Probably you have chosen the wrong "XMLType" storage model (and therefore no performance)
Read here:
http://www.Oracle.com/technetwork/database/features/xmldb/xmlchoosestorage-v1-132078.PDF

Initially approach I took was to write the XML query using the extractValue function. However, when the results of the research in most large result set, time needed to return query results is huge. Especially at page 100, etc..

As a hybrid approach, when XMLs are loaded into DB, I want to store 20 attributes in separate table and all XML in a separate table.
and when extractValue queries are written to what ORACLE automatically re-writes of applications to use the flat table when it is made reference to specific attributes otherwise it load the XML table.

Suggestions box will be greatly appreciated, if not I can always write queries to load a separate table and query it for the purposes of the screen.

Read the given URL/pdf first.

Tags: Database

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