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author's profile photo Guru Subramanian B
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Guru Subramanian B

Java Persistence

Posted on Dec 14, 2004 at 08:41 AM 14 Views

Hi,

Can anyone tell me what is major difference between SQLJ and JDO where and when to use them in terms of Performance and Persitence orientation?

Thanks,

Guru

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  • author's profile photo Former Member
    Former Member
    Posted on Dec 16, 2004 at 06:54 AM
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    Hi Guru,

    please take a look at the documentation which contains a lot of information about Java Persistence (http://help.sap.com/saphelp_nw04/helpdata/en/21/82a9058fa8de46b1ba7522289345b2/frameset.htm > Developing Business Logic > Java Persistence).

    To give you a first hint: SQLJ belongs to the area of relational persistence and you have to write SQL statements into your code whereas JDO is object-relational and offers more transparency for the developer.

    BR

    Daniel

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