EJB from stored procedure lookup problem

We are running a test case with in an EJB deployed to Oracle 8.1.6, accessing it from a Java stored procedure. It works okay if the stored procedure is called a limited number of times from a single client (client is non-Java). However, for performance testing, we are trying to run it several hundred times in sequence to better simulate the eventual production environment. Consistently on the 216th call, it fails with a NamingException from the InitialContext lookup. We can restart the client again and it will fail on the same call.
Sounds like something memory related to me. Does anyone have any ideas? I'm using standard EJB client code in my stored procedure, instantiating an InitialContext, performing a lookup on the EJB, performing a home interface create, then accessing an EJB method.
Thinking it might be that my test was too fast for whatever garbage collection is being done on the server, I tried a 2 second delay between invocations--same problem occurs, however. Should I be making a call to remove my EJBs when my stored procedure ends? If so, how would I do that?
I did try making the handle to my EJB a static variable within the stored procedure and only "creating" the EJB once. That works okay with a single client, but if I run 2 clients simultaneously, 1 will work for awhile and then eventually die trying to call the EJB method--while the other client continues to run successfully.
I'm stumped. Any insight or guidance will be greatly appreciated. Thanks.

My DBA bumped up the large_pool_size and java_pool_size settings and the problem went away. I couldn't convince him to bump the settings one at a time, so am not sure which one was at the root of the problem.
As I looked at the trace logs on the server, I also noticed that we were getting intermittent "peer disconnected socket" messages during the testing. That appears to have gone away with the pool size increases, also--in case that helps out anyone else.

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Hello,
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What is the requirement? Oracle is far more flexible than SQL-Server... with numerous features that do not exist in SQL-Server. (Fact)
One of the biggest mistakes you can make is to treat Oracle like SQL-Server... trying to match feature A1 in SQL-Server to feature B3 in Oracle.
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Hi,
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but is concluded while the Stored Procedure is executed
from the Stored procedure
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Field1 Field2 Field3
A 1 3
B 1 5
C 2 10
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Field1 Field2 Field3
D 10 24
E 3 16
F 8 19
SP_TESTING
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for some range of conditions,
a conclusion X is derived for each range value of the
condition range.
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condition they belong to
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NOTE : A stored procedure is requited as there is a lot
of processing
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Use Out parameter mode
SQL> CREATE OR REPLACE procedure a1 (x OUT NUMBER, y OUT NUMBER) AS
2 BEGIN
3        x:= 1;
4        y:= 2;
5 END;
6 .
SQL> /
Procedure created.
SQL> SET SERVEROUTPUT ON
SQL> DECLARE
2   a NUMBER :=3;
3   b NUMBER :=4;
4 BEGIN
5   a1 (a,b);
6      DBMS_OUTPUT.PUT_LINE( 'a = ' || a );
7      dbms_output.put_line( 'b = ' || b );
8 END;
9 .
SQL> /
a = 1
b = 2
PL/SQL procedure successfully completed.By default parameters are copied to the OUT parameter mode .
COPY hint in PLSQL don’t send a pointer to calling program unit but NOCOPY
does.
Khurram

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I used to work on sql server. this can be done as easy as put a select statement at the end of stored procedure.
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Hi,
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As you said that "I used to work on sql server. this can be done as easy as put a select statement at the end of stored procedure. "
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http://github.com/xtender/XT_SHELL
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DUPLICATE
===============================================================
Issue with Executing OS commands from Stored Procedure
==============================================================

Ora-06550 returning data from Stored Procedure and Entity Data Model

Hi.
I'm creating an application that uses a WCF Service to return data. I also created a proyect with the EDMX design and mapped most of my DBModel to a classes context. I have added some of the procedures as well. One of them receive some parameters and return a Sys_RefCursor, that is populated according to the parameters.
I have declared the "<add >" tags in the Web.Config and imported the function of the Procedure. When I call the Asyncronous function I get different exceptions:
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Oracle.DataAccess.Client.OracleException: ORA-06550: línea 1, columna 8:
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'SP_HECHOSJURITER'
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Error al recibir la respuesta HTTP a
http://localhost/Procalculo.CGFM.SIGOC.DatosServices/ServiceDatos.svc.
(failed to receive http response. error 12152)
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It exclusively happen with one entity.
Any clue?
I appreciate any help.

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http://download.oracle.com/oll/obe/EntityFrameworkOBE/EntityFrameworkOBE.htm

Returning SQL cursor from Stored Procedure

Hi,
I have a query regarding returning sql cursor from stored procedure to java in oracle 11g.
I want to query some data ex: my query returns A, B, C. Also, now I want to query some other data ex: D, E, F. Now I want to return this data as an sql cursor as a single row . Example: A,B,C,D,E,F. Is it possible to return/create a cursor in stored procedure?
assume both query returns equal number of rows.. however both are not related to each other..

RP wrote:
Hi,
I have a query regarding returning sql cursor from stored procedure to java in oracle 11g.
I want to query some data ex: my query returns A, B, C. Also, now I want to query some other data ex: D, E, F. Now I want to return this data as an sql cursor as a single row . Example: A,B,C,D,E,F. Is it possible to return/create a cursor in stored procedure?
assume both query returns equal number of rows.. however both are not related to each other..It sounds like what you need is a ref cursor.
First thing to remember though is that cursors do not hold any data (see: {thread:id=886365})
In it's simplest form you would be creating a procedure along these lines...
SQL> create or replace procedure get_data(p_sql in varchar2, p_rc out sys_refcursor) is
2 begin
3    open p_rc for p_sql;
4 end;
5 /
Procedure created.
SQL> var rc refcursor;
SQL> exec get_data('select empno, ename, deptno from emp', :rc);
PL/SQL procedure successfully completed.
SQL> print rc;
     EMPNO ENAME          DEPTNO
      7369 SMITH              20
      7499 ALLEN              30
      7521 WARD               30
      7566 JONES              20
      7654 MARTIN             30
      7698 BLAKE              30
      7782 CLARK              10
      7788 SCOTT              20
      7839 KING               10
      7844 TURNER             30
      7876 ADAMS              20
      7900 JAMES              30
      7902 FORD               20
      7934 MILLER             10
14 rows selected.
SQL> exec get_data('select deptno, dname from dept', :rc);
PL/SQL procedure successfully completed.
SQL> print rc
    DEPTNO DNAME
        10 ACCOUNTING
        20 RESEARCH
        30 SALES
        40 OPERATIONS
        50 IT SUPPORTWhich takes an SQL statement (as you said that both your queries were unrelated), and returns a ref cursor, and then your Java code would fetch the data using that cursor.
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SQL> select * from x;
C
A
B
C
SQL> select * from y;
C
D
E
F
SQL> ed
Wrote file afiedt.buf
1 select x.col1, x.col2, x.col3
2        ,y.col1 as col4
3        ,y.col2 as col5
4        ,y.col3 as col6
5 from (
6        select max(decode(rn,1,col1)) as col1
7              ,max(decode(rn,2,col1)) as col2
8              ,max(decode(rn,3,col1)) as col3
9        from (select col1, rownum rn from (select * from x order by col1))
10       ) x
11 cross join
12       (
13        select max(decode(rn,1,col1)) as col1
14              ,max(decode(rn,2,col1)) as col2
15              ,max(decode(rn,3,col1)) as col3
16        from (select col1, rownum rn from (select * from y order by col1))
17*      ) y
SQL> /
C C C C C C
A B C D E F... will do what you ask. For further information about turning rows to columns read the FAQ: {message:id=9360005}

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Harini

Hello,
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How to execute Operating System commands from Stored procedure.

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Problem while running the report from stored procedure

Hi,
I using stored procedure to generate my report.
my stored procedure's code looks like this.
CREATE OR REPLACE PROCEDURE PROJECTOVERVIEWREPORT1(query in VARCHAR2)
IS
myPlist SRW_PARAMLIST;
myIdent SRW.Job_Ident;
myStatus SRW.Status_Record;
BEGIN
srw.start_Debugging;
myPlist := SRW_PARAMLIST(SRW_PARAMETER('',''));
srw.add_parameter(myPlist,'GATEWAY','http://localhost:8888/reports/rwservlet');
srw.add_parameter(myPlist,'SERVER','rep_kalyan1');
srw.add_parameter(myPlist,'REPORT','BillFormat.RDF');
srw.add_parameter(myPlist,'USERID','atl3_dev_jul04/atl3_dev_jul04@mgi');
srw.add_parameter(myPlist,'destype','file');
srw.add_parameter(myPlist,'desformat','pdf');
srw.add_parameter(myPlist,'documentnumber','17181');
srw.add_parameter(myPlist,'papertype','N');
srw.add_parameter(myPlist,'desname','c:\temp\17181.pdf');
myIdent := srw.run_report(myPlist);
myStatus := srw.report_status(myIdent);
srw.stop_Debugging;
EXCEPTION
WHEN NO_DATA_FOUND THEN
NULL;
WHEN OTHERS THEN
NULL;
END PROJECTOVERVIEWREPORT1;
Iam running the oc4j instance and the report server in my local machine.
when i have typed http://localhost:8888/reports/rwservlet
Iam able to see the help page.
My rdf file is placed in OralceHome/reports/integ folder.
Iam executing my stored procedure it is returning some error.
Iam doing any thing wrong.
Do i need to modify anything.
Is the place of rdf file correct.
plz help me solving the above problem.
--Kalyan

This is the error message iam getting..
any idea????
* WELCOME TO EVENT-BASED-REPORTING API *
* API-Version : 9i *
* (C) Oracle Corporation, 2000 *
* Debugging turned ON *************************************
*** Length of Paramlist : 1
OK : Parameter added : GATEWAY=http://localhost:8888/reports/rwservlet
*** Length of Paramlist : 2
OK : Parameter added : SERVER=rep_kalyan1
*** Length of Paramlist : 3
OK : Parameter added : REPORT=BillFormat.RDF
*** Length of Paramlist : 4
OK : Parameter added : USERID=atl3_dev_jul04/atl3_dev_jul04@mgi
*** Length of Paramlist : 5
OK : Parameter added : DESTYPE=file
*** Length of Paramlist : 6
OK : Parameter added : DESFORMAT=pdf
*** Length of Paramlist : 7
OK : Parameter added : DOCUMENTNUMBER=17181
*** Length of Paramlist : 8
OK : Parameter added : PAPERTYPE=N
*** Length of Paramlist : 9
OK : Parameter added : DESNAME=c:\temp\17181.pdf
Starting run_report: building url
*** Building URL (RUN_REPORT)
OK : URL built : http://localhost:8888/reports/rwservlet?SERVER=rep%5Fkalyan1&REPORT=BillFormat%2ERDF&USERID=atl3%5Fdev%5Fjul04%2Fatl3%5Fdev%5Fjul04%40mgi&DESTYPE=file&DESFORMAT=pdf&DOCUMENTNUMBER=17181&PAPERTYPE=N&DESNAME=c%3A%5Ctemp%5C17181%2Epdf&statu
*** Submitting HTTP Request
*** using URL :http://localhost:8888/reports/rwservlet?SERVER=rep%5Fkalyan1&REPORT=BillFormat%2ERDF&USERID=atl3%5Fdev%5Fjul04%2Fatl3%5Fdev%5Fjul04%40mgi&DESTYPE=file&DESFORMAT=pdf&DOCUMENTNUMBER=17181&PAPERTYPE=N&DESNAME=c%3A%5Ctemp%5C17181%2Epdf&statusf
ERROR : HTTP request failed

Displaying data from stored procedure into textbox fields based on user input.

I have a stored procedure that is selecting data from a table called "Vendor" in my database. The data that is being returned are vendor names, vendor addresses, vendor Id's, etc...In my stored proc, I have one parameter that allows
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1. sprint
2. sprint
3. sprint co
Each one of those three vendor names has a different vendor address, vendor city, vendor ID, etc...but the vendor names are extremely similar and in some cases
exactly the same. In my report now I can't get the textboxes to return the correct data based on what the user selects. Any advice at all is greatly appreciated.
P.S. I didn't even know what SQL Server was a month ago and had zero knowledge of SSRS at all. I've learned a lot recently, but if you could explain a solution in the easiest way possible I would appreciate it. Thanks!

Hi Jrcowles,
If I understand you correctly, you wnat to list all the Vendor Name which like the user typed Vendor Name on a drop-down list, right? If in this case, we can use a cascading parameters to achieve your requirement. I have tested it on my local environment,
the steps below are for you reference.
Create an other stored procedure using the query below.
CREATE PROCEDURE GetVendorName
@VendorName NVARCHAR(50)
AS BEGIN
exec( 'SELECT * FROM Vendor WHERE VendorName LIKE ''%'+@VendorName+'%''')
END
Create another dataset DataSet2 and using the new created procedure.
Create another parameter VendorName2 and check "Allow Multiple Values" for this parameter.
On the Available Values tab, check "Get values from a query". Select corresponding dataset and field.
On the Default Values tab, check "Get values from a query". Select corresponding dataset and field.
The screenshots below are for you reference.
Reference
http://technet.microsoft.com/en-us/library/aa337169(v=sql.100).aspx
http://www.msbiguide.com/2012/02/adding-cascading-parameters-to-ssrs-reports/
Regards,
Charlie Liao
TechNet Community Support

EJB from stored procedure lookup problem

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