Query performance - A single large document VS multiple small documents

Hi all,
What are the performance trade offs when using a single large document VS multiple small documents ?
I want to store xml snippets with similar structure in a container. Is there any benefit while querying, if I use a single large document to store all these snippets against adding each snippet as a different document. Would it degrade the performance when adding an xml snippet each time by modifying an existing document?
How could we decide whether to use a single large document VS multiple small documents?
Thanks,
Anoop

Hello Anoop,
In case you wanted to get a comparison between the storage types for containers, wholedoc and node, let us know.
What are the performance trade offs when using a
single large document VS multiple small documents ?Depends on what is more important to you, performance when creating the container, and inserting the document(s) or performance when retrieving data.
For querying the best option is to go with smaller documents, as node indexes would help in improving query performance.
For inserting initial data, you can construct your large document composed of smaller xml snippets and insert the document as a whole.
If you further want to modify this document changing its structure implies performance penalties; more indicated is to store the xml snippets as documents.
Overall, I see no point in using a large document that will hold all of your xml snippets, so I strongly recommend going with multiple smaller documents.
Regards,
Andrei Costache
Oracle Support Services

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Hi
Please check the link
[can v create multiple billing document from delivery with single line item]
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Query performance - A single large document VS multiple small documents

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