Inline plsql_optimize_level=3 and recompiling the sys schema??

Has anyone messed around with 11g’s new inline pragma?
I turned it on in a few packages which contains a lot of looping and it reduced the number subprocedure calls in the order of a few thousand. Because the db mainly servers web pages via mod_plsql, I found it to make pages just a tad snappier.
It seemed to work pretty well that I altered the system with plsql_optimize_level=3 and recompiled the entire schema.
This along with native compilation has made the website run the fastest I’ve ever seen it run. (I’ve already tuned sql statements and the sga size, so it was already running pretty fast.) Now it's just crazy quick.
I only wish that standalone functions would also get “inlined”. I have a few functions like “format_money()” which will not get inlined unless they moved inside of packages (or in the declaration of calling standalone procedure).
I’m wondering if anyone has set plsql_optimize_level=3 and recompiled the system schema? I recompiled sys.htp, sys.htf and sys.owa* packages just for fun. I didn’t do any metrics to gage the speed up. Just going off of feel, it does appear just a tad faster.
I'm considering recompiling the entie sys schema and wondering if anyone has done this or recommends it?
Edited by: brian.mcginity on Oct 9, 2011 12:59 PM

Hi Ravshan,
I thought a workaround would be to create a sql script like the following:
alter session set plsql_code_type=native;
alter session set plsql_optimize_level=3;  then point to it in the setting for Tools|Preferences|Database|Filename for connection startup script. That doesn't work however, as the other preference setting for plsql_optimize_level overrides the session value of 3 during compilation from the UI.
According to Oracle documentation, level 3 was added for Oracle 11g. Prior to that, the same effect could be achieved by level 2 in conjunction with the INLINE pragma in the PL/SQL code.
You might want to make a feature request for this on the SQL Developer Exchange so the community can vote and comment.
SQL Developer Team
Edited by: Gary Graham on Feb 6, 2012 2:32 PM
And, of course, Compile for Debug does not work with the 'native' setting.

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work.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

  • Blobs and refreshing the schema

    Hi all,
    I have two questions about Kodo 3.3.3.
    1) About blobs. A blob is the serialization fof an object. Does Kodo store
    the hashCode of the class (ir the serialVersionUID of the class) that was
    used to serialize the object ? Will I have a problem if I want to get back
    that blob with a recompiled version of that class, with a different
    serialVersionUID ?
    2) About the XML descriptors of the schema. I configured my mappingtool to
    write the XML descriptor of the my schema in the base, it works very fine.
    I can get these descriptor, class by class, with the command mappingtool
    -a export -f dump.xml package.jdo, it's very handy. From the
    documentation, I red that one can export this XML, edit it, import it back
    in the base, and refresh the schema
    My problem is : I cant find the command to perform this refresh, the
    schema is just not "synchronized" with the XML. Any hint ? :)
    Btw, I came across a bug using SQL Server : a field named "index"
    generated a column named "index", SQL Server was quite angry at that.
    Sorry if this one is know already.
    Thanks for your answers,

    1) About blobs. A blob is the serialization fof an object. Does Kodo store
    the hashCode of the class (ir the serialVersionUID of the class) that was
    used to serialize the object ? Will I have a problem if I want to get back
    that blob with a recompiled version of that class, with a different
    serialVersionUID ?Kodo just serializes the field value to a byte array using standard Java
    serialization. So yes, you will have problems if the serialVersionUID of the
    class changes. If you want more control over this process, you can create a
    custom DBDictionary that overrides the serialize() method. Or you can use a
    field of type byte[] and a byte-array mapping rather than a blob mapping, so
    that Kodo doesn't do any serialization.
    My problem is : I cant find the command to perform this refresh, the
    schema is just not "synchronized" with the XML. Any hint ? :)Use the schema tool to synchronize the schema with the XML. See:
    Btw, I came across a bug using SQL Server : a field named "index"
    generated a column named "index", SQL Server was quite angry at that.
    Sorry if this one is know already.Thanks. We'll make sure this is fixed in Kodo 3.3.4.

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