Where are java classes stored in Oracle?
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19-08-2019 - |
Question
Where is the java bytecode for loaded java classes stored within an oracle database? Specifically, is there a view or table I can use to obtain the raw bytes for java class schema objects within Oracle?
Solution
If you have used CREATE JAVA SOURCE command to load the Java Source into the Oracle database then you can go to the data dictionary view USER_SOURCE and find your Java Source.
If you need to display it or something, you can check out DBMS_JAVA.EXPORT_SOURCE which puts the source code in PL/SQL structures that you can manipulate.
Generally, if you want to just list all Java related stored objects you can execute the following:
SELECT
object_name,
object_type,
status,
timestamp
FROM
user_objects
WHERE
(object_name NOT LIKE 'SYS_%' AND
object_name NOT LIKE 'CREATE$%' AND
object_name NOT LIKE 'JAVA$%' AND
object_name NOT LIKE 'LOADLOB%') AND
object_type LIKE 'JAVA %'
ORDER BY
object_type,
object_name;
OTHER TIPS
Java bytecode stored in IDL_UB1$
table:
select o.NAME, i.PIECE
from obj$ o, IDL_UB1$ i
where o.type# = 29
and o.obj# = i.obj#
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