What can I use Aurora JVM for?

Question

Hi, Oracle 8i Java Development Team!
I have made more accurate tests. I done Java stored procedure and
deployed it on Oracle 8.1.5 Server Enterprise Edition . Here are
Java program and SQL call spec.
Java store procedure I run in two ways: from SQL*PLUS and from
session shell with the same bad results. Then I run this program
on Sun JVM ( JDK 1.1.7 ) and received interesting results ( see
below )
public class TestBench
public static long RunBecnch( long count )
double dig = 76765.78978;
double res;
long start = System.currentTimeMillis();
for ( int j = 0; j < count; j++ )
res = dig / j;
long end = System.currentTimeMillis();
System.out.println( "Time is : " + ( end - start ));
return ( end - start );
public static void main( String[] args )
long cnt = Integer.parseInt( args[ 0 ] );
long res = RunBecnch( cnt );
create or replace function test_bench( cnt number ) return number
as
language java
name 'TestBench.RunBecnch( long ) return long';
declare
res number;
cnt number;
begin
cnt := 10000000;
res := test_bench( cnt );
dbms_output.put_line( 'Result is '

Answer 1

Hello,
Digging a bit in the Oracle 8i docs, I've found why the java
performance is so low in the database VM. Because there is no
support for user native code from Java yet, and it will be
implmented in a subsequent release. So every program you write
is interpreted only.
So the only advantage you can get from Oracle 8i for the
moment is using their nativized libraries (which are DLL's for
the JDK API)
Alexander
Vladimir Borkovkin (guest) wrote:
: Hi, Oracle 8i Java Development Team!
: I have made more accurate tests. I done Java stored procedure
and
: deployed it on Oracle 8.1.5 Server Enterprise Edition . Here
are
: Java program and SQL call spec.
: Java store procedure I run in two ways: from SQL*PLUS and from
: session shell with the same bad results. Then I run this
program
: on Sun JVM ( JDK 1.1.7 ) and received interesting results (
see
: below )
: public class TestBench
: public static long RunBecnch( long count )
: double dig = 76765.78978;
: double res;
: long start = System.currentTimeMillis();
: for ( int j = 0; j < count; j++ )
: res = dig / j;
: long end = System.currentTimeMillis();
: System.out.println( "Time is : " + ( end - start ));
: return ( end - start );
: public static void main( String[] args )
: long cnt = Integer.parseInt( args[ 0 ] );
: long res = RunBecnch( cnt );
: create or replace function test_bench( cnt number ) return
number
: as
: language java
: name 'TestBench.RunBecnch( long ) return long';
: declare
: res number;
: cnt number;
: begin
: cnt := 10000000;
: res := test_bench( cnt );
: dbms_output.put_line( 'Result is '