Web Service receives no data from Stored Procedure call.

Issue: When calling a Stored Procedure from a Web Service no data is returned.
Lead up: I can call the SP 100 times a day for 3-4 days then for some reason the Web Service no longer get the data from SQL. I have ran a trace and I can see the SP running though all of its steps and returning the data, but the Web Service
is not getting it.
Fix: None yet.
Work around: Before the Web Service calls the SP, I am sending an SP_Recompile to the SP in question. For now this seems to have resolved the issue.
Detail:
1. SP is querying data from another DB on the same server.
2. SP is storing query data in Temp Tables.

Hello,
Does your Stored Procedure have parameters? If so, the issue may be cause by parameter sniffing. Please refer to the following blog about Paraemeter Sniffing:
http://www.sommarskog.se/query-plan-mysteries.html
The recommended fix for most situations is to not use parameters directly in queries, but rather store them into local variables and then use those variables in the queries.
Regards,
Fanny Liu
If you have any feedback on our support, please click here.
Fanny Liu
TechNet Community Support

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

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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The problem is that some of the data in the database has very similiar vendor names, but different vendor addresses, vendor Id's, etc...In some instances the vendor name is actually
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allows the user to select the exact vendor name that he/she is looking for based on what they searched. The problem I'm having is that I don't know what expression I need to put in each one of my textboxes to retrieve the correct data from
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1. sprint
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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
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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

URGENT : Return Bulk data from Stored Procedure

Hi,
Tell me, how do I return a bulk of data which
does not exist in the data base
but is concluded while the Stored Procedure is executed
from the Stored procedure
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A 1 3
B 1 5
C 2 10
Table DEF
Field1 Field2 Field3
D 10 24
E 3 16
F 8 19
SP_TESTING
Depending on the values in both the tables
for some range of conditions,
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condition range.
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NOTE : A stored procedure is requited as there is a lot
of processing
required before we conclude the result X for each value
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If I execute this code from C++ instead of Stored
procedure
it is very slow and speed is a prime requirement of my
system.
Also i'm not using any MFC class to access database.
I'm using ConnectionPtr, RecordsetPtr and _CommandPtr
from msado15.dll for database access...
One solution to this could be use of Temp tables.
As this process is used by a lot of different stored
procedures having a common
temp table to all will need something like 50 NUMERIC
fields, 50 VARCHAR fields
and so on, which doesn't seem like a very good solution
to this problem.
Sounds like something I would have done while in school,
implement a dumb solution.
So, please suggest me a solution as to how do I return
bulk data in the form
of recordsets from stored procedure.
Regards
Shruti

Use Out parameter mode
SQL> CREATE OR REPLACE procedure a1 (x OUT NUMBER, y OUT NUMBER) AS
2 BEGIN
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5 END;
6 .
SQL> /
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Hi there,
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TQ
Neo

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I need to retrieve data form a stored procedure that i have created . This data needs to be per populated in the Iplanet resource from. The stored procedure will have one input string and one output string.
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I have created a Stored Procedure as shown , IS it possible to access these data inside my JDBC Program ??
CREATE or replace PROCEDURE getEmpName(EMP_NUM IN NUMBER)
is
CURSOR C1 is select from emp ;*
C2 c1%rowtype;
BEGIN
open c1;
loop
fetch c1 into c2;
exit when c1%NOTFOuND;
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END ;
*CallableStatement cs = conn.prepareCall("{call getEmpName(?)}");*

What do you mean by :
IS it possible to access these data inside my JDBC Program ??JDBC provide/helps to execute a stored proc. when we say executing a proc, it actually executes on DB. So if a proc is written which has in and out parameter. and if does some work based on in parameter and returns the result in out parameter. Here if you mean, like can i read the out parameter and check what it has returned, then yes you can access this data from JDBC.
CREATE or replace PROCEDURE getEmpName(EMP_NUM IN NUMBER)
is
CURSOR C1 is select from emp ;*
C2 c1%rowtype;
BEGIN
open c1;
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NullPointerException from stored procedure call - Re-edited

Hi All,
I'm Re-editing this as my first attempt was pretty weak.
I'm attempting to create a Java application that communicates with a Oracle XE edition database using:
Class.forName("oracle.jdbc.driver.OracleDriver");
JOptionPane.showMessageDialog(null, "Driver Loaded");
Connection con = DriverManager.getConnection("jdbc:oracle:thin:@//localhost:1521/xe", "SYSTEM", "root");
JOptionPane.showMessageDialog(null, "Database connected");
This all works fine and I can perform queries and transactional statements from within the java instance.
However, I cannot call stored procedures as i receive a null pointer exception. The stored procedure I am trying to call returns no values however I know it works as I can execute it within SQL Developer. The code below is the java statement that calls the stored procedure, alll the sources I have looked at say this is correct, I have also tried, cs.executeUpdate and Resultset rs when attempting to call the statement.
public void thread_actionsperformed(ActionEvent c)//generates threads
               try
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               catch(SQLException ex)
                    ex.printStackTrace();
                    JOptionPane.showMessageDialog(null,"Threading algorithm Executed unsuccessfully");//Error response
               catch(NullPointerException ex)
                    ex.printStackTrace();
                    JOptionPane.showMessageDialog(null,"Threading algorithm Executed unsuccessfully");//Error response
Could it be that the Java application cannot 'see' the sp? Or is it something to do with the privileges? I've been stumped by this for quite a while now, any help would be greatly appreciated.
java.lang.NullPointerException
at ETA_Final.thread_actionPerformed(ETA_Final.java:332)
at ETA_Final$5.actionPerformed(ETA_Final.java:141)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1223)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1264)
at java.awt.Component.processMouseEvent(Component.java:6263)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3255)
at java.awt.Component.processEvent(Component.java:6028)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2475)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Thanks and regards,
K
Edited by: Outbound86 on 28-Apr-2010 13:58

Ivaylo,
Thanks for the reply,
The code that I originally pasted is the code from 332 onwards, however the specific line(s) are below;
     CallableStatement cs = con.prepareCall("{call PROCEDURE2}"); //Calls stored procedure that would generate threaded emails
     cs.execute();
The actionlistener i use to call the statement also returns a null pointer exception, however it works for all the other sql statements that I send across to the oracle db, i'm using a stored procedure as it would be a pain to construct the pl/sql script in Java.
     menuItemB.addActionListener( new java.awt.event.ActionListener()
          public void actionPerformed(ActionEvent bb)
               menuItemB_actionPerformed(bb);//Calls menu specific method
Hope this helps you help me!
Thanks,
K

Who know how to handle pl/sql table return from stored procedure calling from jsp

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The OCI has since Oracle 8i sported an object call interface (see OCI Runtime Environment for Objects for details).
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What is the best approach to return Large data from Stored Procedure ?

no answers to my original post, maybe better luck this time, thanks!
We have a stored proc (Oracle 8i) that:
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2)performs computations which create a large block of data
3) return this data to caller.
compatible with both ASP (using MSDAORA.Oracle), and ColdFusion (using Oracle ODBC driver). This procedure is critical in terms of performance.
I have written this procedure as having an OUT param which is a REF CURSOR to a record containing a LONG. In order to make this work, at the end of the procedure I have to store the working buffer (an internal LONG variable) into a temp table, and then open the cursor as a SELECT from the temp table.
I have tried to open the cursor as a SELECT of the working buffer (from dual) but I get the error "ORA-01460: unimplemented or unreasonable conversion requested"
I suspect this is taking too much time; any tips about the best approach here? is there a resource with REAL examples on returning large data?
If I switch to CLOB, will it speed the process, be compatible with callers, etc ? all references to CLOB I saw use trivial examples.
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Create a new farm in the secondary Data Center at the same patch level with the desired configuration. Replicate the databases using the method of choice (Mirroring, AlwaysOn, etc.). Create a downtime window where you can then attach the databases to the
new farm's Web Application(s)/Service Application(s).
Trevor Seward
Follow or contact me at...
&nbsp&nbsp
This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

Best method to transfer large strings (XML data) to/from stored procedure

Hi!
I'm trying to call a PL/SQL procedure from Java. The procedure inputs a string (XML) that is parsed, and returns a result string (also XML).
Typical size of the string is 5kb -> 1mb.
I can see two possible solutions:
1) String / LONG
2) CLOB (Using DMBS_LOB.createTemporary and getting a CLOB locator and passing the locator to the stored procedure)
Does anyone have other suggestions?
What is the fastest method for transferring XML structures from to and from stored procedures?
Anders

Anders,
I would say it depends on your requirement. Both the methods have some advantages and disadvantages.
Using a CLOB means that you have to use vendor specific libraries but this is more extendible and I fast too.
Using String/Long will be more portable in the long run but again you lose on speed/performance.
Just a doubt of mine... If I got it correct, you are transforming one XML to another XML based on some conditions. Why dont you use XSL and XSL StyleSheet Processor packaged with XDK for this? I think this would be the fastest way.
Hope this helps.

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&$expand=SomeNavigationProperty
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~WcfService.svc/GetEntitiesByParameterId?parameterId=1&$select=name
Tech details:
EntityFramework 5, WCF Data Service 5.0, OData V3
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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. :)

Remote Stored Procedure Call Dispatcher WEB WERVICE

Hello all,
Environment: Windows OS, Oracle 10g, mod_plsql
I am looking for solutions to the following problem:
A way to dispatch calls to stored procedures from client to server with a minimal impact on performance.
We are looking at two possible solutions:
1) Making a call to a Remote Stored Procedure Call Dispatcher (RSPCDispatcher) stored procedure through mod_plsql.
2) Making a call to a Remote Stored Procedure Call Dispatcher (RSPCDispatcher) stored procedure through a web service.
Solution 1) is not the preferred one as you may already know that mod_plsql will not be supported starting 12g.
Solution 2) is the one we prefer as we believe that web services will be ever more supported in the future. When we move to 11g we may turn this web service into a native one (avoiding overhead in the OC4J for hosting the web service etc.).
We are looking for code examples and information pointers of how we could implement this dispatcher as a stored procedure in a DB package. We know that the implementation should be similar to the one done for mod_plsql in the OWA schema but the code there is obfuscated, so we could not borrow ideas from there.
We are not sure how to deal with the generalization of the above stated problem. We need to be able to pass to this dispatcher the stored procedure package and name we are invoking, ordered list of parameters (or parameters map), and the transport strategy (XML, JSON, etc.).
Basically, we are notsure how to deal with the USING clause of the EXECUTE IMMEDIATE statement. We can dynamically generate the SQL statement corresponding to the stored procedure we want to call, but we are not sure how to bind the parameters we are passing?
Also, we know that EXECUTE IMMEDIATE may be slow sometimes. So if could avoid it, this could further improve performance.
Perhaps the run-time generalized stored procedure execution may not be what we are looking for?! Perhaps we should include several design-time steps?! What about a script that given a package name (or just a single stored procedure) would generate a wrapper package which stored procudures' names would correspond to their respective counterparts in the given package which would take two parameters - the list of parameters in some sort of format, and the transport (content delivery strategy) and would return the result in the given content delivery strategy?! This script may also define the XSD of the XML message a stored procedure is called with (the parameter map) as well as the XSD of the XML result the stored procedure returns. Also the script could generate client code with the given language strategy (Java, .NET, etc.) for calling the RSPCDispatcher web service.
We request the following from the Oracle community folks:
a) Please, give us any relevant information that could be helpful to resolve this problem.
b) Any resource of how to inspect stored procedures in a package, its parameters, parameter types and direction (IN, OUT, or INOUT), etc.
Thank you very much in advance.
Regards,
Georgi

Hello all,
Environment: Windows OS, Oracle 10g, mod_plsql
I am looking for solutions to the following problem:
A way to dispatch calls to stored procedures from client to server with a minimal impact on performance.
We are looking at two possible solutions:
1) Making a call to a Remote Stored Procedure Call Dispatcher (RSPCDispatcher) stored procedure through mod_plsql.
2) Making a call to a Remote Stored Procedure Call Dispatcher (RSPCDispatcher) stored procedure through a web service.
Solution 1) is not the preferred one as you may already know that mod_plsql will not be supported starting 12g.
Solution 2) is the one we prefer as we believe that web services will be ever more supported in the future. When we move to 11g we may turn this web service into a native one (avoiding overhead in the OC4J for hosting the web service etc.).
We are looking for code examples and information pointers of how we could implement this dispatcher as a stored procedure in a DB package. We know that the implementation should be similar to the one done for mod_plsql in the OWA schema but the code there is obfuscated, so we could not borrow ideas from there.
We are not sure how to deal with the generalization of the above stated problem. We need to be able to pass to this dispatcher the stored procedure package and name we are invoking, ordered list of parameters (or parameters map), and the transport strategy (XML, JSON, etc.).
Basically, we are notsure how to deal with the USING clause of the EXECUTE IMMEDIATE statement. We can dynamically generate the SQL statement corresponding to the stored procedure we want to call, but we are not sure how to bind the parameters we are passing?
Also, we know that EXECUTE IMMEDIATE may be slow sometimes. So if could avoid it, this could further improve performance.
Perhaps the run-time generalized stored procedure execution may not be what we are looking for?! Perhaps we should include several design-time steps?! What about a script that given a package name (or just a single stored procedure) would generate a wrapper package which stored procudures' names would correspond to their respective counterparts in the given package which would take two parameters - the list of parameters in some sort of format, and the transport (content delivery strategy) and would return the result in the given content delivery strategy?! This script may also define the XSD of the XML message a stored procedure is called with (the parameter map) as well as the XSD of the XML result the stored procedure returns. Also the script could generate client code with the given language strategy (Java, .NET, etc.) for calling the RSPCDispatcher web service.
We request the following from the Oracle community folks:
a) Please, give us any relevant information that could be helpful to resolve this problem.
b) Any resource of how to inspect stored procedures in a package, its parameters, parameter types and direction (IN, OUT, or INOUT), etc.
Thank you very much in advance.
Regards,
Georgi

Web Service receives no data from Stored Procedure call.

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