Re: about Jena SDB features

[Andy Seaborne]

On 05/01/12 03:29, ma...@pku.edu.cn wrote:
Hello Jena Supporter:

I am learning Jena SDB part. I have a question,
Jena has already persistent methods which is in jena.jar
(com.hp.hpl.jena.db.*). what's different between SDB and Jena
persistent parts in   jena.jar? In other words, what features or
advantages SDB provide?

The com.hp.hpl.jena.db.* packages have been removed in the latest release:

http://incubator.apache.org/jena/download/index.html

So one advantage is SDB exists, RDB does not :-)

SDB scales better than RDB did and loaded faster.  Nearly always SPARQL 
was faster (only for small models or flat, simple queries was RDB a bit 
faster).

Do also consider TDB, which is faster than SDB.

        Andy



Thanks

Masen

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