Hi,
An additional query on the same line. Does Sedna provide support for
callbacks on trigger?
Thanks and regards,
Prashanth
________________________________
From: Prashanth kamath <kamat...@yahoo.com>
To: "sedna-discussion@lists.sourceforge.net"
<sedna-discussion@lists.sourceforge.net>
Sent: Thursday, November 10, 2011 4:04 PM
Subject: [Sedna-discussion] Query on Hierarchical support of Sedna XML DB
Hi All,
I am looking for a Native XML database (free/open source) which should be
having the following functionality.
* Supports all basic XML operations.
* Provides C APIs which can be used to connect to my C applications.
* Provides the triggers to applications if any change occurs to database.
* Provides transaction based operations. (commit and rollback)
* Provides a hierarchical data model.
After browsing for the Sedna website, I found that it provides most of the
support features that I am looking for. However, when I went through section
"Hierarchical Collections" under Sedna XML:DB API Emulations in the Sedna
XML:DB API Documentation, I found that the following interesting points.
Sedna does not support hierarchical collections, it supports one
collection deep from the root database and nothing further.
XML:DB API states “An XML database MAY expose collections as
a hierarchical set of parent and child collections.” What does it mean?
Sedna XML:DB API emulates this “hierarchical collections”
functionality.
Does this mean Sedna will be useful only for one-level deep hierarchy only?
I have a requirement in which a tree of objects (these objects have relations
with each other ; i.e either parent-child or sibling or just association among
themselves) has to be stored and retrieved and the tree is so several levels
deep. How can I address this requirement through Sedna? Please let me know.
Thanks in advance.
Best regards,
Prashanth
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