No speed advantage using stored procs

I'm using Oracle 9i from .NET using ODBC and have done some speed tests using regular SQL and then a stored proc (which contains the same SQL). Both execute in an average speed (n = 10) of about 1.43 seconds but every once in a while the stored proc chokes slightly and spits out a 1.97. The SQL is fairly complex (two sub-queries and several joins). I thought putting my SQL into a stored proc was supposed to offer me a speed advantage?

Putting a single SQL statement into a stored procedure probably isn't going to do much to improve or degrade performance initially. Oracle still has to parse the statement when it is first executed, for example, regardless of where the statement is coming from. Putting SQL into a stored procedure benefits performance when
1) It forces you to use bind variables correctly
2) It allows you to avoid passing data back to the middle tier and/or client app by encapsulating multiple steps of a process.
3) It allows someone to come along and tune poorly performing SQL without having to search for SQL that is buried in the bowels of different applications.
Justin

Similar Messages

Crystal Report using Stored Proc in JSP problem

Hello,
I am running a simple report using a stored proc(oracle). It runs fine when I run the report through Crystal. But when I tried running it using JSP it gives me this exception -
com.crystaldecisions.report.web.viewer.CrystalRepo rtViewer
Error formatting page : Unexpected Query Engine error
Can some one pls advise why I am not able to run this report through JSP?
My other reports with simple sql runs fine in my JSP.
Here is my stored proc --
PACKAGE BODY MY_TEST
AS
PROCEDURE getrecordset
p_cursor OUT cursor_type
IS
BEGIN
OPEN p_cursor FOR
SELECT
FROM
DSR_CLASS_SET;
END;
END MY_TEST;

Thanks for your comments.
If I run the same query, report runs fine. So I guess it should also able to run this stored proc.
Here is the detailed error ---
Category:     com.crystaldecisions.reports.reportengineinterface
Message:          failed to process getPage request
Location:
Thrown:
com.crystaldecisions.reports.reportengineinterface.EngineException: Error formatting page : Unexpected Query Engine error
     at com.crystaldecisions.reports.reportengineinterface.Engine.getPage(Unknown Source)
     at com.crystaldecisions.reports.reportengineinterface.JPEReportSource.getPage(Unknown Source)
     at com.crystaldecisions.report.web.viewer.ReportAgent.a(Unknown Source)
     at com.crystaldecisions.report.web.viewer.CrystalReportViewer.goto(Unknown Source)
     at com.crystaldecisions.report.web.ServerControl.a(Unknown Source)
     at com.crystaldecisions.report.web.ServerControl.processHttpRequest(Unknown Source)
     at jsp_servlet._crystal.__test._jspService(__test.java:225)
     at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
     at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:446)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
     at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
     at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
Caused by: com.crystaldecisions.reports.formatter.formatter.c: Unexpected Query Engine error
     at com.crystaldecisions.reports.formatter.formatter.objectformatter.bf.<init>(Unknown Source)
     at com.crystaldecisions.reports.formatter.formatter.objectformatter.bf.a(Unknown Source)
     at com.crystaldecisions.reports.formatter.formatter.d.j.<init>(Unknown Source)
     at com.crystaldecisions.reports.formatter.formatter.d.j.if(Unknown Source)
     ... 19 more
Caused by: com.crystaldecisions.reports.dataengine.k: Unexpected Query Engine error
     at com.crystaldecisions.reports.dataengine.ap.case(Unknown Source)
     at com.crystaldecisions.reports.dataengine.ap.jO(Unknown Source)
     at com.crystaldecisions.reports.dataengine.ap.aC(Unknown Source)
     at com.crystaldecisions.reports.dataengine.ap.aD(Unknown Source)
     at com.crystaldecisions.reports.dataengine.ap.case(Unknown Source)
     at com.crystaldecisions.reports.dataengine.au.a(Unknown Source)
     at com.crystaldecisions.reports.dataengine.a0.a(Unknown Source)
     at com.crystaldecisions.reports.dataengine.a0.aa(Unknown Source)
     at com.crystaldecisions.reports.dataengine.a0.<init>(Unknown Source)
     at com.crystaldecisions.reports.dataengine.a0.<init>(Unknown Source)
     at com.crystaldecisions.reports.dataengine.a0.a(Unknown Source)
     ... 23 more
Caused by: com.crystaldecisions.reports.reportdefinition.datainterface.d: Unexpected Query Engine error
     at com.crystaldecisions.reports.reportdefinition.datainterface.b.a(Unknown Source)
     ... 34 more
Caused by: com.crystaldecisions.reports.queryengine.al: Unexpected Query Engine error
     at com.crystaldecisions.reports.queryengine.driver.l.if(Unknown Source)
     at com.crystaldecisions.reports.queryengine.ao.dZ(Unknown Source)
     at com.crystaldecisions.reports.queryengine.ao.f(Unknown Source)
     at com.crystaldecisions.reports.queryengine.ao.dK(Unknown Source)
     at com.crystaldecisions.reports.queryengine.b0.dB(Unknown Source)
     at com.crystaldecisions.reports.queryengine.bz.a6(Unknown Source)
     ... 35 more
Any guess why I get this?

Error creating Crystal Report using Stored Proc Universe

Hi,
I have created a stored procedure Universe, using the new feature available in XI R3.
This connects to an Oracle database, executing a PL/SQL procedure returning ref cursor.
I have created a WebI report using this Universe, which works fine and functions as expected.
So there are no problems with either my Oracle stored proc or the Universe.
However, I would like to create a Crystal report (2008) using the same Universe.
I can create the report ok - using the SP Universe.
When I attempt to refresh the data I get an error:
Failed to retrieve data from the database.
Details: ORA-06550: line 1, column 7:
PLS-00103: Encountered the symbol "." when expecting one of the following:
begin case declare etc etc
.................................My Procedure ...................
CREATE OR REPLACE PROCEDURE BIADM.Bo_Test_Report_R
(Deposit_Cursor IN OUT SYS_REFCURSOR)
IS
BEGIN
OPEN Deposit_Cursor FOR
SELECT DISTINCT foracid "A/C"
, acct_name "A/C Name", acct_opn_date "OP/Date", schm_code "SchmCode"
FROM gam@finrpt
WHERE acct_cls_flg ='N'
AND foracid ='2252020145001';
--AND cust_id ='CB2020145'
END Bo_Test_Report_R;
Please Give me solution as early as possible.
Masud Iqubal

Moved to Universe Design forum.

Using Stored Proc with CMP - Possible?

Is it possible for me to use a stored proc for my CMP bean instead of the usual inline SQL?

sorry, I mean for the ID field.

Using stored proc with database control

I have a beta copy of sp2 for wl8.1 and I see that you have added the ability to
call stored procedures that return output variables from a database control.
I am trying to figure out whether there is any way to return a ref cursor as an
output variable.
Thanks,
Robin

sorry, I mean for the ID field.

Parsing Column Value. SQL / Stored Proc/ Function ?

Hi,
I just started writing SQL. Need your valuable input for the following query,
Need to query a table and parse a column to produce a desired output.
like suppose my column value is
#ADFA
/SDFGAS
{ABC}: 123
{BCA}: 456
{DEF}: 789
and i need to get an out put as follows
{ABC} {BCA} {DEF}
123 456 789
so the patterns are defined.
I some how tried and reached through SQL, but there should be better way than this. So posted this question.
I tried using SQL itself (using substr, instr & decode functions in the select statement)... with out using stored proc/ function as i have not created one earlier.. I am just learning the syntax and trying it.
The psuedo code i have planned is
function substring(column_value, search_string)
var start_index NUMBER;
var end_index NUMBER;
var result VARCHAR2;
result = 'N/A';
start_index = instr(column_value, search_string) + 4
if start_index >= 4
end_index = instr(substr(column_value, 0, start_index), CHR(13)-1)
if start_index >= 4 && end_index >=0
result = substr(column_value, start_index, end_index);
return result;
I just wrote it like writing in a programming language. Need to implement this through Stored Proc/ Function. Please let me know your comment on this

Oops, I think regular expressions are not available in my current oracle version :-(
I am having Oracle 9i.
Got it.. Yes it is available from 10G onwards.. :-(
Message was edited by:
Thiru.Thiru

Stored proc returns zero result

Hello, please help me. I am quite new to oracle stored
procedures. I have a proc that returns data to cfm but it keeps
giving zero results. But if i don't use stored proc, the same query
gives me something. please help. my stored proc and cfm goes
something like below:
************************************ stored procedures
CREATE OR REPLACE PACKAGE PACK_REFCURSOR_NHM_TRANSACTION AS
TYPE TRANS_TableRows IS REF CURSOR;
PROCEDURE REFCUR_NHM_TRANSACTION (
IN_sTMPACC IN varchar2,
IN_sITEM_TYPES IN varchar2,
OUT_TRANS OUT TRANS_TableRows);
END PACK_REFCURSOR_NHM_TRANSACTION ;
CREATE OR REPLACE PACKAGE BODY PACK_REFCURSOR_NHM_TRANSACTION
AS
PROCEDURE REFCUR_NHM_TRANSACTION (
IN_sTMPACC IN varchar2,
IN_sITEM_TYPES varchar2,
OUT_TRANS OUT TRANS_TableRows)
IS
BEGIN
OPEN OUT_TRANS FOR
SELECT T.TRANSACTION_ID, T.TRANSACTION_TYPE,
T.TRANSACTION_DATE, T.TRANSACTION_TIME,
T.ITEM_CODE, 0 OE_DETAIL_ID,
T.QUANTITY, T.LIST_PRICE, T.DISCOUNT, T.SALE_PRICE,
T.GST_AMOUNT, 'I' INSURER_TYPE
FROM NHM_TRANSACTION T
WHERE DISPENSED_FLG = 'Y'
AND T.ACCOUNT_ID = IN_sTMPACC
AND T.TRANSACTION_TYPE IN ('01','02', '09')
AND NVL(T.STATUS,'F') != 'C'
AND T.BILLED_FLG = 'N'
AND T.ITEM_TYPE IN (IN_sITEM_TYPES)
AND T.BILL_ITEM_FLG = 'Y'
UNION ALL
SELECT T.OE_TRANSACTION_ID TRANSACTION_ID, TRANSACTION_TYPE,
T.TRANSACTION_DATE,
T.TRANSACTION_TIME, NVL(T.ITEM_CODE,T.PACKAGE_CODE)
ITEM_CODE, T.OE_DETAIL_ID,
T.QUANTITY, T.LIST_PRICE, T.DISCOUNT, T.SALE_PRICE,
T.GST_AMOUNT, 'S' INSURER_TYPE
FROM NHC_OE_TRANSACTION T, NHC_MASTER_ITEM M, NHM_PACKAGE P
WHERE T.ACCOUNT_ID = IN_sTMPACC
AND T.ITEM_CODE = M.ITEM_CODE(+)
AND T.PACKAGE_CODE = P.PACKAGE_CODE(+)
AND (DECODE(T.ITEM_CODE,NULL,P.BILL_OPTION,M.BILL_OPTION) in
('P','O','F'))
AND NVL(T.STATUS,'F') != 'C'
AND T.BILLED_FLG = 'N'
AND ((T.TRANSACTION_TYPE = '09' AND STATUS IN ('P','R'))
OR T.TRANSACTION_TYPE IN ('01','02','11','12', '10'))
AND T.BILL_ITEM_FLG = 'Y'
AND T.ITEM_TYPE IN (IN_sITEM_TYPES) ;
END REFCUR_NHM_TRANSACTION ;
END PACK_REFCURSOR_NHM_TRANSACTION ;
*************** the cfm code (note: i am using coldfusion
MX************
<cfstoredproc datasource="#application.datasource#"
procedure="NSCOCT.PACK_REFCURSOR_NHM_TRANSACTION.REFCUR_NHM_TRANSACTION">
<cfprocparam type="IN" cfsqltype="CF_SQL_VARCHAR"
value="#TMPACC#" dbvarname="IN_sTMPACC">
<cfprocparam type="IN" cfsqltype="CF_SQL_VARCHAR"
value="#QRYLOCITEM.ITEM_TYPE#" dbvarname="IN_sITEM_TYPES">
<cfprocresult name="getPrescItems">
</cfstoredproc>
***** i dumped getPrescItems and returns no data. it's
suppose to return something . Any help is much appreciated. Thank
you. *********

just an update. i found out that it has something to do with
the condition "IN". the values there is supposed to be a list (e.g.
a,b,c,d,e,f,g). What I suspect is that when in stored proc, it
interprets in the query as "IN('a,b,c,d,e,f,g')" instead of
"IN('a','b','c','d','e','f','g')" which is what I actually want.
I have also tried the quotedvaluelist in cfm but still no
result, so i suspect again, using quotedvaluelist, that it
interprets in the proc as "IN(''a','b','c','d','e','f','g'')".
Can anybody help me whit this so i can have the proc
interpret my IN condition as "IN('a','b','c','d','e','f','g')"?
Thanks.

Stored Proc Problem

Hi everyone,
I have inherited a classic asp site that uses stored procs with a SQL 2005 Server. The problem is this, when I open up "Command" to view the data that my predecessor used all seems ok as I am not an expert in Stored Procs and am just learning this web application. I do not make any changes and then select "OK" - when I do this an error comes up telling me that there is a "MIssing Run Time Variable" for a particular variable. The site itself works well so the error seems incorrect.
Because I inherited the site and do not have access to my predecessors computer is there a chance that because I am opening the "Command" box for the first time that I am not seeing exactly what was added into it originally??
I am at a bit of a loss and would really appreciate a steer in the right direction.
Many thanks
Scott

I would not worry too much if it works. I have noticed that if I enter 'custom' code that DW gives me error messages when the code is actually O/k.
HTH

** How to use TO_DATE function in Stored Proc. for JDBC in ABAP-XSL mapping

Hi friends,
I use ABAP-XSL mapping to insert records in Oracle table. My Sender is File and receiver is JDBC. We use Oracle 10g database. All fields in table are VARCHAR2 except one field; this is having type 'DATE'.
I use Stored procedure to update the records in table. I have converted my string into date using the Oracle TO_DATE function. But, when I use this format, it throws an error in the Receiver CC. (But, the message is processed successfully in SXMB_MONI).
The input format I formed like below:
<X_EMP_START_DT hasQuot="No" isInput="1" type="DATE">
Value in Payload is like below.
<X_EMP_START_DT hasQuot="No" isInput="1" type="DATE">TO_DATE('18-11-1991','DD-MM-YYYY')</X_EMP_START_DT>
Error in CC comes as below:
Error processing request in sax parser: Error when executing statement for table/stored proc. 'SP_EMP_DETAILS' (structure 'STATEMENT'): java.lang.NumberFormatException: For input string: "TO_DATE('18"
Friends, I have tried, but unable to find the correct solution to insert.
Kindly help me to solve this issue.
Kind Regards,
Jegathees P.
(But, the same is working fine if we use direct method in ABAP-XSL ie. not thru Stored Procedure)

Hi Sinha,
Thanks for your reply.
I used the syntax
<xsl:call-template name="date:format-date">
<xsl:with-param name="date-time" select="string" />
<xsl:with-param name="pattern" select="string" />
</xsl:call-template>
in my Abap XSL. But, its not working correctly. The problem is 'href' function to import "date.xsl" in my XSLT is not able to do that. The system throws an error. Moreover, it is not able to write the command 'extension-element-prefixes' in my <xsl:stylesheet namespace>
May be I am not able to understand how to use this.
Anyway, I solved this problem by handling date conversion inside Oracle Stored Procedure. Now, its working fine.
Thank you.

Unable to pass the values to stored proc using presentation variable in OBI

Hi All,
Need your help regarding in resolving an issue in OBIEE 10.1.3.4.1
There is an OBIEE requirement whereby two prompts need to be defined.
1. Textbox prompt
2. Drop-down prompt
The dropdown values should be populated using textbox prompt. So, we have used presentation variable in textbox prompt and passing the same to select query of drop-down.
Until this step, the report works just fine.
Now, the value in both textbox and drop-down needs to be passed to stored proc.
While trying to pass the values by using the presentation variable, the following error comes-up saying
Session variable has no value definition.
Note:Although the corresponding session variable has been set to default value,still the error appears.
Please advise.
Regards,
Prasad

"Session variable has no value definition" I'm assuming typo error and it should be presentation variable.
Set default value for presentation variable that may work

Stored Proc running twice using DBMS_Scheduler

Hello all,
I have a vb front end that calls a main stored proc which submits scheduler jobs to execute several stored procs asynchronously. Everything is working, except the part that the several stored procs are running twice. In the troubleshooting, I have eliminated the front end from being the culprit and the stored procs themselves. Essentially, when I call the stored proc using dbms_scheduler.create_job, it runs twice, even manually. I am about at wits end trying to figure out why: Using Oracle 11gR2
I started off setting up the programs
begin
--create program
dbms_scheduler.create_program
( program_name => 'prog_name'
,program_type => 'STORED_PROCEDURE'
,program_action => 'usp_sub_proc_1'
,number_of_arguments => 8
,enabled => FALSE
dbms_scheduler.DEFINE_PROGRAM_ARGUMENT
( program_name=> 'prog_name'
,argument_position=>1
,argument_name => 'name'
,argument_type=>'VARCHAR2'
/*the remaining 7 arguments are in code but not display for space reasons*/
dbms_scheduler.enable('prog_name');
end;Then the main stored proc executes this code:
declare v_job_name varchar2(100);
    v_1 varchar(50) := 'All';
    v_2 varchar(50) := 'All';
    v_3 varchar(50) := 'All';
    v_4 varchar(50) := 'All';
    v_5 varchar(50) := 'TEST';
    i_6 integer := 1;
    v_7 varchar(50) := 'TEST_NE';
    ts_8 timestamp := current_timestamp;
begin
    v_job_name := 'uj_dmo_1';
dbms_scheduler.create_job (v_job_name
                                        ,program_name => 'prog_name'
                                        ,job_class => 'UCLASS_1'
                                        ,auto_drop => TRUE
--set parameters
dbms_scheduler.set_job_argument_value(v_job_name,1, v_1);
dbms_scheduler.set_job_argument_value(v_job_name,2, v_2);
dbms_scheduler.set_job_argument_value(v_job_name,3, v_3);
dbms_scheduler.set_job_argument_value(v_job_name,4, v_4);
dbms_scheduler.set_job_argument_value(v_job_name,5, v_5);
dbms_scheduler.set_job_argument_value(v_job_name,6, to_char(i_6));
dbms_scheduler.set_job_argument_value(v_job_name,7, v_7);
dbms_scheduler.set_job_argument_value(v_job_name ,8, to_char(ts_8));
--enable job
dbms_scheduler.enable(v_job_name);
--execute job
dbms_scheduler.run_job(job_name => v_job_name , use_current_session => FALSE);
end;
...And this is where I get the double execution of the job, but I am just not seeing it in my syntax, dba_scheduler_jobs, logging, etc. Any help is greatly appreciated, thanks!!

Well apparently I will not win any Captain Obvious awards;
With 34MCA2K2's response with "what doesn't work" for some reason turned the light on. After some more testing here is what I found.
This code works as expected :
Exhibit A
begin
dbms_scheduler.create_job (job_name =>'TESTER'
                               ,job_type => 'PLSQL_BLOCK'
                               ,job_action => 'declare test1 integer := 1; begin test1 := test1 + 5; end;'
                               ,auto_drop => True
   /*dbms_scheduler.enable('TESTER');   */
   dbms_scheduler.run_job(job_name => 'TESTER', use_current_session =>FALSE);
end;As does this:
Exhibit B
begin
dbms_scheduler.create_job (job_name =>'TESTER'
                               ,job_type => 'PLSQL_BLOCK'
                               ,job_action => 'declare test1 integer := 1; begin test1 := test1 + 5; end;'
                               ,auto_drop => True
   dbms_scheduler.enable('TESTER');
/*dbms_scheduler.run_job(job_name => 'TESTER', use_current_session =>FALSE);    */
end;Exhibit A will create the job and is visible in the schedulerjobs view, and the RUN_JOB will execute it even when not enabled, but the pl/sql will not drop the job.
Exhibit B will create the job and once enabled, executes the job and then drops from schedulerjobs view.
Therefore, my desired results for running the jobs once asynchronously and dropping immediately is....
begin
    v_job_name := 'uj_dmo_1';
dbms_scheduler.create_job (v_job_name
                                        ,program_name => 'prog_name'
                                        ,job_class => 'UCLASS_1'
                                        ,auto_drop => TRUE
--set parameters
dbms_scheduler.set_job_argument_value(v_job_name,1, v_1);
dbms_scheduler.set_job_argument_value(v_job_name,2, v_2);
dbms_scheduler.set_job_argument_value(v_job_name,3, v_3);
dbms_scheduler.set_job_argument_value(v_job_name,4, v_4);
dbms_scheduler.set_job_argument_value(v_job_name,5, v_5);
dbms_scheduler.set_job_argument_value(v_job_name,6, to_char(i_6));
dbms_scheduler.set_job_argument_value(v_job_name,7, v_7);
dbms_scheduler.set_job_argument_value(v_job_name ,8, to_char(ts_8));
/*enable job*/
dbms_scheduler.enable(v_job_name);
/*execute job (Do not execute the code below, it will lead to multiple executions)
dbms_scheduler.run_job(job_name => v_job_name , use_current_session => FALSE); */
end;

Using an existing connection in a Java Stored Proc

Hi,
I have to invoke a Java stored procedure from a PL/SQL stored proc. In the Java stored proc I open a database connection & execute some SQLs. To do this can I use the same connection that is used to invoke the PL/SQL stored proc. In other words can we use the existing PL/SQL connection within a Java stored proc that is being called by the former PL/SQL instead of creating a new connection?
Thanks in advance.
Sunitha

Ok I understood how to get the default connection from http://www.oracle.com/technology/tech/java/sqlj_jdbc/htdocs/jdbc_faq.htm#05_01
Connection conn = DriverManager.getConnection("jdbc:default:connection");However, I find that the Java stored proc is running slower in Oracle VM than invoking it from a command line Java program using thick driver from a remote machine.
Thanks anyway.
Sunitha.

Using Statement rather than CallableStatement for stored proc execution

Cleary, if you need to extract output parameters from a stored procedure, then you must use a CallableStatement to execute it. However, if your stored procedure just returns a basic ResultSet, or performs a database update, is there any penalty to using a regular Statement to execute the stored procedure?
For example -
String sql = "exec testprocedure 'param1' 'param2'";
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery( sql );
vs.
CallableStatement cs = conn.prepareCall( "{call testprocedure(?,?)}" );
cs.setString( 1, "param1" );
cs.setString( 2, "param2" );
ResultSet rs = cs.executeQuery();
Any thoughts?

Any thoughts?You would have to look at the actual driver code for a sure answer.
But for any real database (which a stored proc suggests) I doubt there would be any difference at all. It would resolve to the same call.

Calling stored proc from java using ref cursor

Hi All,
We have a requirement to display all the records from a table on a JAVA screen. Due to some constraints, we have to write the query in the stored proc. We are trying to return a result set from the stored proc to the java code by using a ref cursor. Please refer to the code below.
Following is the PL/SQL proc �
procedure sp_user_course2(v1 OUT ref_cursor, persid in varchar2) as
begin
open v1 for
SELECT lrn_exp_id, crs_name FROM emp_crs
WHERE personid = persid;
end;
Here ref_cursor is of TYPE REF CURSOR declared in the package specification.
The java code is �
Callable stmt = conn.prepareCall("call sp_user_course2(?,?)");
stmt.registerOutParameter(1,OracleTypes.CURSOR);
stmt.setString(2,emplId);
stmt.execute();
OracleCallableStatement tstmt = (OracleCallableStatement) stmt;
ResultSet rs = tstmt.getCursor (1);
When I run the program, I get the following error (at stmt.execute()):
[Oracle][ODBC][Ora]ORA-06553: PLS-306: wrong number or types of arguments in call to 'SP_USER_COURSE2' 6553
Can anyone tell me what could be the problem with this code? I have read somewhere that REF CURSOR feature is available from Oracle 9i onwards. If so, then, is there any workaround for mapping REF CURSOR to Resultsets in Oracle 8i?

These may help
http://www.google.co.uk/search?q=jdbc+OracleTypes.CURSOR+tutorial

Use 'default' keyword in call string while calling stored proc?

I am calling following sql server stored procedure from java code using my jdbc driver for sql server: CREATE PROCEDURE test_findTbInfo (
@paramIn_Str varchar(10),
@paramOut_Int int OUT,
@paramIn_Int int = 20
AS
begin
set @paramOut_Int = @paramIn_Int * 100
end
If I make a call like this:
CallableStatement cs = conn.prepareCall(" { call test_findTbInfo(? , , ? ) }");
cs.setString(1, "test_tab");
cs.setInt(2, 4);
cs.execute();
It works without any error. But this is not a right behavior. !! The second parameter as you see is passed like an optional parameter. But in stored proc it is NOT an optional param and so if the value not passed it should fail...
Now if I change the code to
CallableStatement cs = conn.prepareCall(" { call test_findTbInfo(? , default, ? ) }");
it works correctly. Gives error that "Procedure 'test_findTbInfo' expects parameter '@paramOut_Int', which was not supplied." which is correct.
So is it a normal practice to use 'default' keyword while calling sql server stored procedures having optional parameters in jdbc ????
Anyone knows ??? As far as I know "call test_findTbInfo(? , , ? )" works fine except in some cases and also it forces users to put all optional parameters at the end of parameter list in stored proc.
Please let me know whether I should go with 'default' throuout for sql server stored proc while calling using my jdbc driver.
Amit

{?= call <procedure-name>[<arg1>,<arg2>, ...]}The question mark in the above is the result parameter
that must be registered.
That is not the same as an OUT argument.Yes that is true. The result value and OUT parameters are different but they both MUST be registered as per jdbc API
"The type of all OUT parameters must be registered prior to executing the stored procedure; their values are retrieved after execution via the get methods provided here."
Anyway, my original question still stays as it was. If there are some optional IN parameters in stored procedure
e.g.
PROCEDURE test_findTbInfo (
@paramIn_Int int = 20,
@paramOut_Int int OUT
how do you call this?
CallableStatement cs = conn.prepareCall(" { call test_findTbInfo( , ? ) }");
cs.registerOutParameter(1, Types.INTEGER);
cs.execute();
or
CallableStatement cs = conn.prepareCall(" { call test_findTbInfo(default, ? ) }");
Also note that I am intending to use ONLY sql server driver for this.
The first as well second seem to work. Except that second way is seems reliable. I just wanted a second opinion on that...
Amit

No speed advantage using stored procs

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