Oracle数据库嵌入式JVM

Question

How can we identify which JRE version is supported by Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 64 bit (embedded JVM)

Any suggestion will be appreciated

Answer 1

I found the answer for determining which jvm version is used on Oracle database

Here is the solution:

If You need to find out which java/jdk version in installed along Your Oracle server You can create function and than retrieve java version direcly from JDK. First create function...

CREATE OR REPLACE FUNCTION get_java_property (prop IN VARCHAR2) 
RETURN VARCHAR2 IS LANGUAGE JAVA
name 'java.lang.System.getProperty(java.lang.String) return java.lang.String';

.. and then get the version

SELECT get_java_property('java.version') FROM dual;

If You cannot create such function, general rule is that in default installation: Oracle 9 uses JDK 1.3, Oracle 10 uses JDK 1.4.

Answer 2

You can also avoid having to write the function if you run this query:

SELECT  dbms_java.get_ojvm_property(PROPSTRING=>'java.version') FROM dual

Which will output something like this:

SQL> /

DBMS_JAVA.GET_OJVM_PROPERTY(PROPSTRING=>'JAVA.VERSION')
--------------------------------------------------------------------------------
1.5.0_10