Calling stored function that contains commit from .JCX

Question

I would like to call a stored function (Oracle) that contains a commit, from
a WebLogic database control (.JCX). The suggested way to call a stored
function is to do something like:
* @jc:sql statement::
* SELECT MY_FUNCTION({projectID}, {staffID}) FROM DUAL
int callMyFunction(int projectID, int staffID) throws SQLException;
This doesn't work if the function contains a commit - I get: ORA-14552:
cannot perform a DDL, commit or rollback inside a query or DML. I don't
want to just get my own connection to the db in my code and call it directly
because then I won't be using the connection pool provided by WebLogic. Is
there a recommended way to do this? So far, the database control has taken
care of getting connections from the pool. Can I get a connection from the
pool explicitely and use it? How do I "return" it to the pool?
Thanks.
Steve

Answer 1

Steve Kincer wrote:
Thanks for the response.
So far, I've only used the database control, so I haven't been doing any
transaction management (rollbacks/commits) myself - I've just called methods
in my database control and not worried it. Come to think of it, all my
other calls are just SELECTs, so it hasn't been an issue, but I've assumed
WebLogic or the connection pool would take care of transaction management
for me if I coded an UPDATE function in the database control.
What do you mean by "find and use the control API provided for
defining/demarking
transactions" ... what control?
I've seen stuff in the help file about transaction management, so I can
research that, but where do I get the connection to use for this? I'm
thinking I should get it from the pool (rather than create my own
connection). I saw a generated method in my database control called
getConnection, but when I tried using it with a CallableStatement I got
error:
"The transaction is no longer active - status: 'Committed'. No further JDBC
access is allowed within this transaction."This means that you are automatically being taken care of transactionally,
and don't need to do any commit() calls.
Joe
>
I guess it's pretty obvious that I'm pretty new to WebLogic.
Thanks for your help.
Steve
"Joe Weinstein" <[email protected]> wrote in message
news:[email protected]...
Steve Kincer wrote:
I would like to call a stored function (Oracle) that contains a commit,
from a WebLogic database control (.JCX). The suggested way to call a
stored function is to do something like:
* @jc:sql statement::
* SELECT MY_FUNCTION({projectID}, {staffID}) FROM DUAL
int callMyFunction(int projectID, int staffID) throws SQLException;
This doesn't work if the function contains a commit - I get: ORA-14552:
cannot perform a DDL, commit or rollback inside a query or DML.Right. It is bad style to hide a commit in a procedure. The begin-tx
and commit should be at the same level, above any specific SQL for the
tx. How did you start a transaction? Are you sure you have an ongoing
transaction?
I don't
want to just get my own connection to the db in my code and call it
directly because then I won't be using the connection pool provided by
WebLogic. Is there a recommended way to do this? So far, the database
control has taken care of getting connections from the pool. Can I get a
connection from the pool explicitely and use it? How do I "return" it to
the pool?You should find and use the control API provided for defining/demarking
transactions.
Joe
Thanks.
Steve