Non blocking stored proc call

HI
I have written a c application using OCI which can call stored proc. but that is using blocking call. Is it possible to call stored proc in non blocking mode? So that I can receive output in call back function. Actually stored proc take much time to execute can I associate some Subscription callback-function with my stored proc call. Any idea?
Thanks
Kamran

If you want to do non-blocking calls in OCI, you just need to set the server handle (svrhp below) attribute:
sb2 polling=1;
OCIAttrSet((dvoid *)svrhp,
(ub4)OCI_HTYPE_SERVER,
(dvoid *)&polling,
(ub4)0,
(ub4)OCI_ATTR_NONBLOCKING_MODE,
(OCIError *) errhp);
And then you call you OCIExecute() as you would in blocking mode. The difference is that instead of blocking until the call is done on the server, it always returns immediately. So instead of calling it just once per statement and checking the return code, you must keep calling OCIExecute() until it does not equal OCI_STILL_EXECUTING. When the proc is done, the final call to OCIExecute() will then be OCI_SUCCESS, OCI_ERROR, whatever happened.

Similar Messages

Error committing transaction in Stored Proc call - prev solns not working

Hi All,
Our process invokes a DB adapter to fetch the response from the table for our request via Stored Procedure call but facing the below issue. Its a synchronous process. Stored Procedure is present inside the Package and we are calling the Stored procedure using that Package.
What we did is created a DB datasource of XA type and tried to call the Stored Proc but it was giving a problem “ORA-24777: use of non-migratable database link not allowed” and hence according to this thread Using DB links in Stored proc call in DB adapter 11G SOA we have modified the datasource as non-XA type.
While we do that, we could see that Stored Proc is called and the response is present in the reply payload inside the flow trace. But the instance is getting faulted and the error is “Error committing transaction:; nested exception is: javax.transaction.xa.XAException: JDBC driver does not support XA, hence cannot be a participant in two-phase commit. To force this participation, set the GlobalTransactionsProtocol attribute to LoggingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source.”
We have tried the properties of global transaction support as one phase commit, emulate two phase commit and logging last resource but error remains the same.
Database from which we are getting the response is of version "Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production". Will the database link error arises even if we connect to Oracle Database?
Please could you advise me solutions to resolve this issue.
Thanks in advance.

You are using Non-XA because it means (among all others) that the commit issue can be handle by the DB as well.
The Emulate Two Phase property imitating the XA transaction in that way, that it allows you to manage a local db transaction.
You can stay with XA connection, but then you will have to use "AUTONOMOUS_TRANSACTION pragma" in your procedure.
Enter the following link to find good explanation about all of your questions:
http://docs.oracle.com/cd/E15523_01/integration.1111/e10231/adptr_db.htm#BGBIHCIJ
Arik

ASAP: How a stored proc calls OS(unix)Commands

urgent!!
My stored procedure requires to call unix commands HOW DO I DO IT?
my rqrmnt is :
stored proc is :-
1.for each file in a directory($ls)
do
2.sql stmnts of insert etc
/OR
use sqlldr for the same.
done.
** how do i do both the operations 1&2 in the same Oracle procedure?

I know HOST can be used in form for OS command but I never thought about doing OS command in the stored procedure.
Hmm...........
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by [email protected] ... ([email protected]):
urgent!!
My stored procedure requires to call unix commands HOW DO I DO IT?
my rqrmnt is :
stored proc is :-
1.for each file in a directory($ls)
do
2.sql stmnts of insert etc
/OR
use sqlldr for the same.
done.
** how do i do both the operations 1&2 in the same Oracle procedure?
<HR></BLOCKQUOTE>
null

How to include an out param of a stored proc called inside a ref cursor...????

I have a stored proc that is defined as
CREATE or REPLACE
PROCEDURE ABC
(linkid IN CHAR,
Year_in IN DATE,
Method_in IN CHAR,
Date_out OUT DATE,
average_out OUT NUMBER)
is
begin
end;
another partially completed stored proc that returns a ref
cursor defined as follows:
create or replace package zzz
as
type cursorType is ref cursor;
end;
create or replace function test return zzz.cursortype
as
date_OUT date;
Average_OUT number;
l_cursor zzz.cursorType;
CURSOR temp_cur is
SELECT l.linkid, L.routenumber, ABC(l.linkid,
to_date('01/01/2000', 'mm/dd/yyyy'),
'2',
date_OUT,
average_OUT)
FROM LINK l
WHERE l.LINKID <= '010999';
begin
open temp_cur;
end;
inside test (which I need help completing), how can I refer to
the date_out and the average_out params returned by ABC() so
that these values are in turn passed to the cursortype defined
in package zzz?
Thanks in advance.

Try rewriting your abc proceudre as two functions, abc1 and
abc2, and rewriting your test function as a test procedure. See
if you can fill in the blanks prefaced by hyphens -- in the
following code:
CREATE OR REPLACE FUNCTION abc1
(linkid      IN CHAR,
   year_in     IN DATE,
   method_in   IN CHAR)
RETURN DATE
IS
date_out DATE;
BEGIN
SELECT   --
INTO     date_out
FROM     --
WHERE    --;
--or
date_out := --;
RETURN date_out;
END abc1;
CREATE OR REPLACE FUNCTION abc2
(linkid      IN CHAR,
   year_in     IN DATE,
   method_in   IN CHAR)
RETURN NUMBER
IS
average_out NUMBER;
BEGIN
SELECT   AVG (--)
INTO     average_out
FROM     --
WHERE    --
GROUP BY --;
--or
average_out := --;
RETURN average_out;
END abc2;
CREATE OR REPLACE PACKAGE zzz
AS
TYPE cursortype IS REF CURSOR;
PROCEDURE test
    (temp_cur OUT cursortype);
END zzz;
CREATE OR REPLACE PACKAGE BODY zzz
AS
PROCEDURE test
    (temp_cur OUT cursortype)
IS
BEGIN
    OPEN temp_cur
    FOR
    SELECT l.linkid,
           l.routenumber,
           abc1 (l.linkid,
                TO_DATE ('01/01/2000', 'mm/dd/yyyy'),
                '2'),
           abc2 (l.linkid,
                TO_DATE ('01/01/2000', 'mm/dd/yyyy'),
                '2')
    FROM   link l
    WHERE l.linkid <= '010999';
END test;
END zzz;
SQL> VARIABLE g_ref REFCURSOR;
SQL> EXEC zzz.test (:g_ref);
SQL> PRINT g_ref

Asynchronous stored proc call in 10g

Hi,
There's an external application that executes one of the stored procedures in my database. I dont want an open connection between the application and database for the duration of procedure execution (execution time can be as long as an hour).
What'd be the best approach to asynchronously call the stored procedure in Oracle 10g?
Also, can I run multiple sessions of the same procedure asynchronously (as the external application is accessible to many users and more than one user can kick-off the process at any point of time).
Any pointers to relevant documentation would be greatly appreciated.
Thanks

Another suggestion can be Streams AQ. I found it very useful.
You can see a working example here:
http://asktom.oracle.com/pls/ask/f?p=4950:8:11739140770566317513::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:8760267539329
All you need to know is here:
http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14257/toc.htm

ASAP:stored proc calling Unix commands

i want an Oracle stored procedure to call unix commands as well as do sqlldr ... opern.
requirement is :
the stored procedure needs to do :
for all files in a Directory:
do
{ .. use sqlldr to insert data in tbls
.. move the processed file into another directory
so,for ls &mv commands i need the Command/way out.
null

Hi Jorma,
It's been a while since I did it, but I successfully did what you
are trying to do. All I did was "load" the remote interface and
"stub" class into the database using the "loadjava" utility. My
environment was Oracle 8.1.7 on SUN (Sparc) Solaris 7.
Although I haven't tried it, you may be able to invoke a servlet
from your java stored procedure. The advantage over RMI is that
you don't need to generate and load a "stub" class. Naturally, you
would use the "java.net.URLConnection" class to invoke a servlet
on some web-server/servlet engine which you can communicate with
using "streams" -- java.io.InputStream and java.io.OutputStream
Also, I understand that there is now a "oc4jclient.jar" (not 100%
sure of the name) file that can be "loaded" into the database,
which allows you to contact EJB's in Oracle's OC4J product. I
think you can either do this directly, or indirectly using JMS
over Oracle AQ.
[JMS = Java Messaging Service]
[AQ = Advanced Queueing]
Good Luck,
Avi.

Can we call a Java Stored Proc from a PL/SQL stored Proc?

Hello!
Do you know how to call a Java Stored Proc from a PL/SQL stored Proc? is it possible? Could you give me an exemple?
If yes, in that java stored proc, can we do a call to an EJB running in a remote iAS ?
Thank you!

For the java stored proc called from pl/sql, the example above that uses dynamic sql should word :
CREATE OR REPLACE PACKAGE MyPackage AS
TYPE Ref_Cursor_t IS REF CURSOR;
FUNCTION get_good_ids RETURN VARCHAR2 ;
FUNCTION get_plsql_table_A RETURN Ref_Cursor_t;
END MyPackage;
CREATE OR REPLACE PACKAGE BODY MyPackage AS
FUNCTION get_good_ids RETURN VARCHAR2
AS LANGUAGE JAVA
NAME 'MyServer.getGoodIds() return java.lang.String';
FUNCTION get_plsql_table_A RETURN Ref_Cursor_t
IS table_cursor Ref_Cursor_t;
good_ids VARCHAR2(100);
BEGIN
good_ids := get_good_ids();
OPEN table_cursor FOR 'SELECT id, name FROM TableA WHERE id IN ( ' | | good_ids | | ')';
RETURN table_cursor;
END;
END MyPackage;
public class MyServer{
public static String getGoodIds() throws SQLException {
return "1, 3, 6 ";
null

Oracle stored procedure call failed,but not captured by the error handling

Hi All,
I have a unix shelll script which calls a stored proc in Oracle, the stored proc call failed due to "ORA-01033: ORACLE initialization or shutdown in progress".
But it is not captured in the error handling block, Any ideas why this had happened?
SQL file had : my_test_sql.sql
exec my_proc(..............);
Unix shell script has this call:
sqlplus -s my_user/my_pwd@db1 @my_test_sql.sql
if [[ $? -ne 0 ]]; then
echo "failed"
exit 1
else
echo "success"
fi
If i execute the above shell, I'm getting the following
ERROR:
ORA-01033: ORACLE initialization or shutdown in progress
SP2-0306: Invalid option.
Usage: CONNÝECT¨ Ýlogon¨ ÝAS SYSDBA¨
where <logon> ::= <username>Ý/<password>¨Ý@<connect_identifier>¨ | /
success.
This puzzled me, any pointers?

The $? status variable shows the return code of the last command executed. It will be difficult to determine what the exit status of your sql script is without knowing the script. Do you have any "WHENEVER SQLERROR EXIT" statements in the script?
The ORA-01033 error happens when the database is not open, perhaps in recovery, or startup or shutdown is halted due to a failed or full disk, error in archiving or writing to redo, etc.

WCF OData Service stored procedure call generates "Operation could destabilize the runtime" error with $select option

I've been trying to call a stored procedure through Entity Framework and WCF Data Services (OData). It returns an entity not a complex type. Following walkthroughs found all over the web, I came up with this code inside my service:
[WebGet]
public IQueryable<Entity> GetEntitiesByParameterId(int parameterId)
return CurrentDataSource.GetEntitiesByParameterId(parameterId).AsQueryable();
Calling the proc this way: ~WcfService.svc/GetEntitiesByParameterId?parameterId=1 executes
the stored procedure and returns entities that should be returned. No problem there.
Everything works well until I try to use $select OData option ie. ~WcfService.svc/GetEntitiesByParameterId?parameterId=1&$select=name.
Upon debugging, the method above runs without any error but it returns an Operation could destabilize the runtime error upon reaching the
client. After so much research, apparently it is a very general error pointing to a lot of different causes. I haven't found one that really matches my particular problem. Closest are
http://stackoverflow.com/questions/378895/operation-could-destabilize-the-runtime
https://social.msdn.microsoft.com/Forums/en-US/d2fb4767-dc09-4879-a62a-5b2ce96c4465/for-some-columns-entity-properties-executestorequery-failed-with-error-operation-could?forum=adodotnetdataservices
but none of the solutions worked on my end.
Also, from the second article above:
This is a known limitation of WCF DS. ...
Second is that some of the queries won't work correctly because LINQ to EF needs little different LINQ expressions than LINQ to Objects in some cases. Which is the problem you're seeing.
It has been posted on 2012. If it its true, are there still no updates on this? And is there any other workaround to get the $select working on the stored proc call?
What works:
~WcfService.svc/GetEntitiesByParameterId?parameterId=1
~WcfService.svc/GetEntitiesByParameterId?parameterId=1&$top=1
~WcfService.svc/GetEntitiesByParameterId?parameterId=1&$skip-5
~WcfService.svc/GetEntitiesByParameterId?parameterId=1&$filter={filter query}
~WcfService.svc/GetEntitiesByParameterId?parameterId=1&$expand=SomeNavigationProperty
What doesn't work:
~WcfService.svc/GetEntitiesByParameterId?parameterId=1&$select=name
Tech details:
EntityFramework 5, WCF Data Service 5.0, OData V3
*I've also tried upgrading to EF6 and WCF 5.6.2 and it still didn't work.
Any help would be appreciated. Thanks!

Someone from SO replied to my question there and said that $select is still not supported though I couldn't find any definitive documentation about it.
From what I gather and observed, $select breaks the stored procedure call because it tries to alter the data shape already gotten from the database and attempts to return a dynamic entity instead. Something about the stored proc returning an ObjectResult might
be messing it up. As I have said, these are merely my observations.
Workaround: I found a simple and elegant workaround for it though. Since my stored procedures are only getting data from the database and does
not alter data in any way (INSERT, UPDATE, DELETE), I tried using table-valued functions that returns a table equivalent to the entity on my EF. I've found that calling this function on the Service Operation method returns an IQueryable<Entity> which
is basically what is needed. $select also works now and so does other OData query options.
Steps:
Create a function on the database
Update EDMX -> Add function
Add new Function Import with Entity return type
Create service operation in WCF Data Service that calls CurrentDataSource.<FunctionName>()
Test in fiddler.
CODES
Database Function:
CREATE FUNCTION GetEntities(@parameter)
RETURN @entites TABLE(
[Id] [int],
[Name] [nvarchar](100),
AS
BEGIN
INSERT INTO @entities
SELECT [Id], [Name], ... FROM [EntityTable]
RETURN
END
WCF:
[WebGet]
public IQueryable<Entity> GetEntity(int parameter)
return CurrentDataSource.GetEntity(parameter);
It doesn't really solve the stored procedure problem but I'm marking this as answer until someone can provide a better one as it does solve what I'm trying to do.
Hope this helps others too. :)

Java stored proc from proxy Java classes generated from a web service?

Hi gurus,
I have searched "Java Stored Procedure" on this forum but could not find what I am looking for, so I have to post again.
I need to use a web service and my client app is written in PowerBuilder 11 (Sybase), which claims that it will create a datawindow from a web service. Well, it turned out that PB can only handle simple stuff (it works with a very simple wsdl from the internet) but can't handle more complex ones that we need to use. So I am thinking about using Oracle JDeveloper(JDev) to create the web service proxy for the web service and then load it into Oracle as a Java stored procedure so that PowerBuilder can call the procedure. JDev succsfully generated the proxy and a few Java classes. My question is, do I need to load all the classes into the database? If yes, will the reference to the package work? For example, in a JDev generated class (the soap client class), it has package MyJdev.proxy; at the top. Or, will it work if I load all the classes included in package /MyJdev/proxy into the database?
Thank you very much for any help.
Ben

For the java stored proc called from pl/sql, the example above that uses dynamic sql should word :
CREATE OR REPLACE PACKAGE MyPackage AS
TYPE Ref_Cursor_t IS REF CURSOR;
FUNCTION get_good_ids RETURN VARCHAR2 ;
FUNCTION get_plsql_table_A RETURN Ref_Cursor_t;
END MyPackage;
CREATE OR REPLACE PACKAGE BODY MyPackage AS
FUNCTION get_good_ids RETURN VARCHAR2
AS LANGUAGE JAVA
NAME 'MyServer.getGoodIds() return java.lang.String';
FUNCTION get_plsql_table_A RETURN Ref_Cursor_t
IS table_cursor Ref_Cursor_t;
good_ids VARCHAR2(100);
BEGIN
good_ids := get_good_ids();
OPEN table_cursor FOR 'SELECT id, name FROM TableA WHERE id IN ( ' | | good_ids | | ')';
RETURN table_cursor;
END;
END MyPackage;
public class MyServer{
public static String getGoodIds() throws SQLException {
return "1, 3, 6 ";
null

DATE value in a STORED PROC becoming incorrect?

I have a PL SQL script that creates a TABLE on the fly with a DATE column in it. I then have a FUNCTION that queries this table. The FCN is called from within a SP. In these three steps the date becomes a BOGUS value.... I am seeing things like this:
2/5/0009 12:00:00.000 AM
6/4/0009 12:00:00.000 AM
4/16/0009 12:00:00.000 AM
7/9/0008 12:00:00.000 AM
5/7/0007 12:00:00.000 AM
Obviously the 0009 should be 2009 and 0008 2008 etc..... ANy idea what is causing this?????
Here is my code:
DROP TABLE MAXIMO.MAX411_TEMP_REG_DATE
create table
   MAXIMO.MAX411_TEMP_REG_DATE
as
SELECT ITEMNUM,
        DESCRIPTION,
        LOCATION,
        BINNUM,
        REG_DATE + (trunc(rownum / ((select count(*) from inventory)/100))*7) REG_DATE
FROM ( SELECT   I.ITEMNUM,
                I.DESCRIPTION,
                N.LOCATION,
                N.BINNUM,
                TO_DATE(SYSDATE,'DD-MON-YYYY') REG_DATE
        FROM ITEM I, INVENTORY N
        WHERE I.ITEMNUM = N.ITEMNUM
        ORDER BY N.LOCATION, N.BINNUM)
COMMIT
CREATE OR REPLACE FUNCTION MAXIMO.FCN_GET_REGDATE (item_in IN VARCHAR2)
RETURN DATE
IS
new_regdate   DATE;
var_problem_indicator   number;
BEGIN
          SELECT reg_date
           INTO new_regdate
           FROM MAXIMO.MAX411_TEMP_REG_DATE
           WHERE itemnum = TRIM(item_in) AND ROWNUM = 1;
END;
RETURN new_regdate;
END;
/ STORED PROC CALL
var_regdate             DATE;
var_regdate := MAXIMO.FCN_GET_REGDATE (rec.ITEMNUM);Thanks for any help I can get.....
Miller

Looking at this code I find two items very disturbing:
ORDER BY N.LOCATION, N.BINNUM
... and ...
WHERE itemnum = TRIM(item_in) AND ROWNUM = 1;
It looks a lot like you are trying to rely on a sort order imposed on the data as it is inserted into the table to identify a particular record for a given item_in. If so, that's very dangerous, but it's nothing that can't be fixed. Let us know ...

Trying to call a stored proc from a form ?

Hi im trying to call a stored procedure that create a web page
any where from within a form. (the SP It uses the htp package).
It does not seem to work.
lets say in the PL/SQL block before the footer i pu
<schema>.my_procedure;
i get a not decleared <schema>.my_procedure error.
Could someone help !
Also is there a way to call stored proc directly from the url
I tried httP://hostname/pls/portal30/<schema>.my_procedure
unsuccessful.
thanks

For it to work, you should grant EXECUTE on your Procedure to
PUBLIC.
Have you done that?
If yes then there is a problem.

Calling DB2 Stored Proc from Oracle DB

Hi,
I am having two different database running (One is oracle on solaris while the other one is db2 on os/390 mainframe) i want to pass the data realtime. Is there any way I can call a DB2 stored procedure from oracle directly. If anyboy can help in this will be really helpful.
thanks,
Kishor

odi version we have is ODI_11.1.1.6.0, it is not migrated and 'Always Execute' option is checked already.
tried using variables in capital format but did not worked,
begin
schema_name.proc_name(#LV_TABLE_NAME,#LV_SCHEMA_NAME,#LV_START_DATE,#LV_END_DATE);
end;
odi is giving error if it finds any bug in stored proc but after fixing its completing successfully without errors in operator but i am not able to see the result.
Please advise.

Calling a COBOL stored proc from Java Servlet

I am trying to call a COBOL stored proc from a Java Servlet. The stored proc is stored on a DB2 database. I need to send 6 inputs to the COBOL stored proc and the output will be the return code of the stored proc. I'm not sure if I'm going about this the right way. This is how my code looks...
public int callStoredProc(CallableStatement cstmt,
Connection con,
String sYear,
String sReportNbr,
String sSystemCode,
String sUserId,
String sModuleNbr,
String sFormId){
int iParm1 = 0;
try{
Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
catch(ClassNotFoundException ex){
System.out.println("Failed to locate database driver: "
+ ex.toString());
return iParm1;
try{
cstmt = con.prepareCall("{? = CALL MKTPZ90C
cstmt.registerOutParameter(1, Types.INTEGER);
cstmt.setString(2, sYear);
cstmt.setString(3, sReportNbr);
cstmt.setString(4, sSystemCode);
cstmt.setString(5, sUserId);
cstmt.setString(6, sModuleNbr);
cstmt.setString(7, sFormId);
cstmt.execute();
iParm1 = cstmt.getInt(1);
CloseSQLStatement(cstmt);
catch(SQLException ex) {
CloseSQLStatement(cstmt);
System.out.println("SQL exception occurred:" +
ex.toString());
return iParm1;
return iParm1;
Could someone tell me if this is the right way to go about doing this?
Thanks!!!!!!

I didn't see the code where you create the database connection (variable "con"). However, the answer to your question "Is this the right way...", for me, is "Anything that works is the right way." So try it. That's a first approximation, but once you have something that works you can start on improving it, if that becomes necessary.

Call EJB From Oracle Stored proc or Database loaded Java?

Are there any examples of calling an EJB, residing in the OC4J on a machine separate from the DB server,
from an Oracle PL/SQL stored proc.
The Stored proc can call java loaded into the DB. That java makes the intial bean context. Or another way if suggested.
The reason is that I need to use some drivers that I have so far been unable to load directly into the DB using
loadjava util. I plan on using the driver in the EJB, located on a different machine. But I'd like so know if its possible to
make the IntialContext call to the EJB container from PL/SQL. Are the OC4J drivers loadable to be
able to be called from a database loaded java class? ( I might be a little off on my terminology)
Bob
[email protected]

Hi Bob,
Your question has been previously asked on this forum many times already.
You can probably find the relevant postings by doing a search of the
forum archives.
To summarize those posts, as I understand it, the latest version of OC4J
(version 9.0.3) contains a "oc4jclient.jar" file (I think that's the name
of the file), that can be loaded into the Oracle database (using the
"loadjava" utility), and which allows a java stored procedure to invoke
methods on an EJB residing in OC4J.
Please note that I have not tried any of the above -- I am only summarizing
for you what has already been posted. And like I said before, a search
of the forum archives will probably give you more details.
Good Luck,
Avi.

Non blocking stored proc call

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