XML result set storage and stored procedures

Hi,
Is there an alternative way to store and process a large data result set from an XML document without using temporary tables in an Oracle DB? If so, how can this be implemented using stored procedures?
Additional Info:
I am planning to use a directory server as my data source and returning an XML document to the store procedure that executes a query to this server. I read somewhere that table variables can be used as an alternative, however it is not the desired option when you have large result sets due to potential performance issues. Any guidance you can provide would be appreciated. Thanks

You could have a go with XML functions, but probably, because you mentioned "large data result set", you will have to deal with it programmatically. I have read once good examples in a book called "Building Oracle XML Applications" from Steve Muench (http://www.oreilly.com/catalog/orxmlapp/), but it is a little bit dated. Nevertheless a book from Steve is worth while.

Similar Messages

RETURN RESULT SET FROM JAVA STORED PROCEDURE

I'm calling a Oracle 8.1.5 java stored proc from PL/SQL and I
would like to send a Java result set to the calling function.
I havent found anyway to do this currently. Anyone else doing
anything like this and have a work around or know when/if it has
been fixed?
Mark
[email protected]
null

This is not possible in Oracle 8i, will have to wait till Oracle 9i

How to Store the result sets of a stored procedure that is returning more that one result set in two different table ?

Hi Experts,
I have on stored procedure which returns mote than one resultset i want that to store in two different temp table how can achieve this in SQL server.
following is the stored procedure and table that i need to create.
create procedure GetData as begin select * from Empselect * from Deptend
create table #tmp1 (Ddeptid int, deptname varchar(500),Location varchar(100))
Insert into #tmp1 (Ddeptid , deptname ,Location )
exec GetData
create table #tmp (empid int , ename varchar(500),DeptId int , salary int)
Insert into #tmp (empId,ename,deptId,salary)
exec GetData
Niraj Sevalkar

You cant get two resultsets out of SP like this. The workaround is to merge and bring the resultsets.
For this number of columns as well as corresponding datatypes have to be compatible. Also you will need one additional column which indicates resultset value. Then use this as filter to get your desired resultset out
create procedure GetData as
begin
select 'resultset1' as Cat,*,.. N columns from Emp
union all
select 'resultset2' as Cat,*,.. N columns from Dept
end
create table #tmp1 (Ddeptid int, deptname varchar(500),Location varchar(100))
Insert into #tmp1 (Ddeptid , deptname ,Location )
Select column1,column2,column3
from OPENROWSET('SQLOLEDB','Data Source=Server_name;Trusted_Connection=yes;
Integrated Security=SSPI','Execute yourdb..GetData')
WHERE Cat = 'resultset1'
create table #tmp (empid int , ename varchar(500),DeptId int , salary int)
Insert into #tmp (empId,ename,deptId,salary)
Select column1,column2,column3, column4
from OPENROWSET('SQLOLEDB','Data Source=Server_name;Trusted_Connection=yes;
Integrated Security=SSPI','Execute yourdb..GetData')
WHERE Cat = 'resultset2'
also see
http://sqlblogcasts.com/blogs/madhivanan/archive/2007/11/26/select-columns-from-exec-procedure-name-is-this-possible.aspx
Another method is to populate table with relevant resultset within procedure itself and then select from the table directly outside.
Please Mark This As Answer if it solved your issue
Please Vote This As Helpful if it helps to solve your issue
Visakh
My Wiki User Page
My MSDN Page
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XML/SQL Utility and stored procedure

Hi there,
Is it possible to use the XML/SQL Utility passing a stored
procedure call, which returns a result set (ref cursor), instead
of a SELECT statement? If yes, how should I call the
OracleXMLQuery constructor?
Thanks,
Flavio.
null

Here's a sample. The next code drop of the XSQL Servlet will make the easy-to-do from within XSQL Pages:
package package1;
import org.w3c.dom.*;
import java.sql.*;
import oracle.jdbc.driver.*;
import oracle.xml.sql.query.OracleXMLQuery;
public class Class1 extends Object {
public static void main( String[] arg ) throws Exception {
Connection conn = getConnection();
CallableStatement ocs = conn.prepareCall("begin ? := App.HotItems('PAUL'); end;");
ocs.registerOutParameter(1,OracleTypes.CURSOR);
ocs.execute();
ResultSet rs = ((OracleCallableStatement)ocs).getCursor(1);
OracleXMLQuery oxq = new OracleXMLQuery(conn,rs);
System.out.println(oxq.getXMLString());
oxq.close();
rs.close();
ocs.close();
conn.close();
public static Connection getConnection() throws Exception {
String username = "scott";
String password = "tiger";
String dburl = "jdbc:oracle:thin:@localhost:1521:xml";
String driverClass = "oracle.jdbc.driver.OracleDriver";
Driver d = (Driver)Class.forName(driverClass).newInstance();
return DriverManager.getConnection(dburl,username,password);
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Database updation using XML and stored Procedure?

Hello,
I want to perform updation in multiple tables using XML files.Please suggest can I do updation using xml and stored procedure.
If yes then which is more efficient and takes less time.
1.Updation using xml files only
2.Updation using xml files with stored procedure.
3.Stored procedure alone.
If direct xml and stored procedure communication is possible.then please write how.
Thanks in advance for any help.

Here's a sample. The next code drop of the XSQL Servlet will make the easy-to-do from within XSQL Pages:
package package1;
import org.w3c.dom.*;
import java.sql.*;
import oracle.jdbc.driver.*;
import oracle.xml.sql.query.OracleXMLQuery;
public class Class1 extends Object {
public static void main( String[] arg ) throws Exception {
Connection conn = getConnection();
CallableStatement ocs = conn.prepareCall("begin ? := App.HotItems('PAUL'); end;");
ocs.registerOutParameter(1,OracleTypes.CURSOR);
ocs.execute();
ResultSet rs = ((OracleCallableStatement)ocs).getCursor(1);
OracleXMLQuery oxq = new OracleXMLQuery(conn,rs);
System.out.println(oxq.getXMLString());
oxq.close();
rs.close();
ocs.close();
conn.close();
public static Connection getConnection() throws Exception {
String username = "scott";
String password = "tiger";
String dburl = "jdbc:oracle:thin:@localhost:1521:xml";
String driverClass = "oracle.jdbc.driver.OracleDriver";
Driver d = (Driver)Class.forName(driverClass).newInstance();
return DriverManager.getConnection(dburl,username,password);
null

Creating XML report using PL/SQL Stored Procedure

Hi Friends,
I am working on an xml report with the xml source as PL/SQL Stored Procedure.
I am referring the exercise shown in the following link to understand the process:
   http://orclapp.blogspot.com/2012/02/developing-xml-publisher-report-using.html
In the example shown in the above link I could not understand the following:
1) In the following procedure, the out parameter 'retcode' is not used at all.
   What is the importance of this parameter.
    PROCEDURE REPORT (errbuf OUT VARCHAR2, retcode OUT VARCHAR2, p_product_id   IN     NUMBER)
2) After the xml data is prepared and put to 'l_result' Clob variable, the following
    Loop is executed. I am not able to appreciate why the following loop is required.
     LOOP
         EXIT WHEN l_length = l_retrieved;
         IF (l_length - l_retrieved) < 32000
         THEN
            SELECT SUBSTR (l_result, l_retrieved + 1) INTO l_xmlstr FROM DUAL;
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              INTO l_xmlstr
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         END IF;
     END LOOP;
3) In the example it is not explained how the concurrent program gets the xml data?
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   I would appreciate if anyone can throw some light into my above queries so that I can understand the process clearly.
Thanks & Regards
Hawker

Hi 32000 in the code is a 'safe' size smaller than the max available 32767, the loops purpose is to move through the entire thing in chunks that will be manageable in the limits of the data type.
Btw; if you are in Oracle e-business suite then you can also use Oracle reports very simply to create XML output.
If you have reports developer all you need to do is put raw sql (without any 'artifice' to create XML) in the report SQL and then set the reports output to XML in the program definition in Oracle e-business.
best regards,
Robert.

FOR XML will not run in stored procedure but will in Query

The following is the Query and stored procedure for a XML export. The query runs find and returns a clickable link. The stored procedure does not.
Stored Procedure
USE [db]
declare @XmlOutput1 xml
set @XmlOutput1 =
(SELECT incident_num,
unit_id, unit_status_datetime,
unit_status_remarks
FROM unit_status_hist
where convert(varchar,unit_status_datetime,102)
=
convert(varchar,getdate(),102)
FOR XML
RAW)
select @XmlOutput1
Query:
use db
SELECT incident_num, unit_id,
unit_status_datetime, unit_status_remarks
FROM unit_status_hist
WHERE convert(varchar,unit_status_datetime,102)
=
convert(varchar,getdate(),102)
for XML
auto, Elements
Any help would be greatly appreciated. Thank you.

The following is the Query and stored procedure for a XML export. The query runs find and returns a clickable link. The stored procedure does not.
Stored Procedure
USE [db]
declare @XmlOutput1 xml
set @XmlOutput1 =
(SELECT incident_num,
unit_id, unit_status_datetime,
unit_status_remarks
FROM unit_status_hist
where convert(varchar,unit_status_datetime,102)
=
convert(varchar,getdate(),102)
FOR XML
RAW)
select @XmlOutput1
Query:
use db
SELECT incident_num, unit_id,
unit_status_datetime, unit_status_remarks
FROM unit_status_hist
WHERE convert(varchar,unit_status_datetime,102)
=
convert(varchar,getdate(),102)
for XML
auto, Elements
Any help would be greatly appreciated. Thank you.
I cant see any stored procedure here
both of the code posted are queries only
also clickable link will come in only SSMS query window. Are you trying to execute this from some application?
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Accessing XML API's from Java Stored Procedures in DB

I am working in an environment that does not contain any Oracle applications and we have been looking at XML publisher as a stand alone service. I have successfully configured the UI and created some command line java programs to produce documents and deliver these documents.
How do I install (do I need to install) XML Publisher java in the database in order to access XML Publisher API's from stored procedures. Any clues or help would be gratefully appreciated.
George

Hello Chris,
I have been able to create a PDF from the database. I loaded the following jar files and removed any java class that could not compile.
activation.jar, axis-ant.jar, axis.jar, axis-schema.jar, bicmn.jar, bipres.jar, collections.jar,
commons-beanutils.jar, commons-collections-3.1.jar, commons-collections.jar, commons-dbcp-1.1.jar commons-digester.jar, commons-discovery.jar, commons-el.jar, commons-fileupload.jar, commons-logging-api.jar commons-logging.jar, commons-pool-1.1.jar, http_client.jar, i18nAPI_v3.jar, javamail.jar, jaxrpc.jar,
jewt4.jar, jsp-el-api.jar, log4j-1.2.8.jar, logkit-1.2.jar, ojpse.jar, oracle-el.jar, oraclepki.jar,
orai18n.jar, quartz-1.5.1.jar, quartz-oracle-1.5.1.jar, regexp.jar, saaj.jar, service-gateway.jar, share.jar, uix2.jar, uix2tags.jar, versioninfo.jar, wsdl4j.jar, xdocore.jar, xdoparser.jar, xdo-server-delivery-1.0-SNAPSHOT.jar, xdo-server-kernel-0.1.jar, xdo-server-kernel-impl-0.1.jar, xdo-server-scheduling-1.0-SNAPSHOT.jar, xercesImpl.jar, xmlparserv2-904.jar, xmlpserver.jar, xsu12.jar
I needed to copy the XML Publisher fonts to the database server and ran the following java grants, note my $ORACLE_HOME is /opt/app/oracle/product/10.1.0/
dbms_java.grant_permission('XMLP', 'java.util.PropertyPermission', '*', 'read,write');
dbms_java.grant_permission('XMLP', 'java.net.SocketPermission', '*', 'connect, resolve');
dbms_java.grant_permission('XMLP', 'java.io.FilePermission', '/tmp/*', 'read, write, delete');
dbms_java.grant_permission('XMLP', 'java.io.FilePermission', '/opt/app/oracle/product/10.1.0/javavm/lib/*', 'read');
dbms_java.grant_permission('XMLP', 'java.io.FilePermission', '/opt/app/oracle/product/10.1.0/javavm/lib/fonts/*', 'read');
dbms_java.grant_permission('XMLP', 'java.lang.RuntimePermission', 'setFactory', '');
George

How to return two XML result sets using the function

Hi Experts,
Thanks.

So that I want to return two XML result sets if the query returns more than 50,000 records.
One XML result set with 50,000 and another XML result set with remaining records.
How to incorporate this in my function.
Have the function return a collection of CLOB then.
DBMS_XMLGEN can handle pagination so it's easy to adapt your existing code.
Here's an example fetching data in batches of max. 3 rows each, using a pipelined function :
SQL> create or replace type clob_array is table of clob;
2 /
Type created
SQL>
SQL> create or replace function genXmlRowset (p_deptno in number) return clob_array pipelined
2 is
3    ctx    dbms_xmlgen.ctxHandle;
4    doc    clob;
5 begin
6
7    ctx := dbms_xmlgen.newContext('SELECT empno, ename FROM scott.emp WHERE deptno = :1');
8    dbms_xmlgen.setBindValue(ctx, '1', p_deptno);
9    dbms_xmlgen.setMaxRows(ctx, 3);
10
11    loop
12
13      doc := dbms_xmlgen.getXML(ctx);
14      exit when dbms_xmlgen.getNumRowsProcessed(ctx) = 0;
15      pipe row (doc);
16
17    end loop;
18
19    dbms_xmlgen.closeContext(ctx);
20
21    return;
22
23 end;
24 /
Function created
SQL> set long 5000
SQL> select * from table(genXmlRowset(30));
COLUMN_VALUE
<?xml version="1.0"?>
<ROWSET>
<ROW>
<EMPNO>7499</EMPNO>
<ENAME>ALLEN</ENAME>
</ROW>
<ROW>
<EMPNO>7521</EMPNO>
<ENAME>WARD</ENAME>
</ROW>
<ROW>
<EMPNO>7654</EMPNO>
<ENAME>MARTIN</ENAME>
</ROW>
</ROWSET>
<?xml version="1.0"?>
<ROWSET>
<ROW>
<EMPNO>7698</EMPNO>
<ENAME>BLAKE</ENAME>
</ROW>
<ROW>
<EMPNO>7844</EMPNO>
<ENAME>TURNER</ENAME>
</ROW>
<ROW>
<EMPNO>7900</EMPNO>
<ENAME>JAMES</ENAME>
</ROW>
</ROWSET>
SQL>
(and don't forget to use bind variables in your query)

DAC task with Informatica mapping and stored procedure (very slow)

Hello,
We have a DAC task that launch an Informatica Workflow with a simple query and stored procedure, like this:
SQL QUERY
==========================
SELECT
W_ACTIVITY_F.ROW_WID,
W_AGREE_D.AGREE_NUM,
W_PRODUCT_D.ATTRIB_51,
W_SRVREQ_D.ATTRIB_05,
W_ORG_DH.TOP_LVL_NAME,
W_ORG_D.ATTRIB_06,
W_PRODUCT_GROUPS_D.PRODUCT_LINE,
W_PRODUCT_D.PROD_NAME
FROM
W_AGREE_D,
W_SRVREQ_F,
W_ACTIVITY_F,
W_PRODUCT_D LEFT OUTER JOIN W_PRODUCT_GROUPS_D ON W_PRODUCT_D.PR_PROD_LN = W_PRODUCT_GROUPS_D.PRODUCT_LINE,
W_ORG_D,
W_SRVREQ_D,
W_ORG_DH
WHERE
W_SRVREQ_F.AGREEMENT_WID = W_AGREE_D.ROW_WID AND
W_SRVREQ_F.SR_WID = W_ACTIVITY_F.SR_WID AND
W_SRVREQ_F.PROD_WID = W_PRODUCT_D.ROW_WID AND
W_SRVREQ_F.ACCNT_WID = W_ORG_D.ROW_WID AND
W_SRVREQ_F.SR_WID = W_SRVREQ_D.ROW_WID AND
W_ORG_D.ROW_WID = W_ORG_DH.ROW_WID
STORED PROCEDURE
===========================
ConvSubProy(W_AGREE_D.AGREE_NUM,
W_PRODUCT_D.ATTRIB_51,
W_SRVREQ_D.ATTRIB_05,
W_ORG_DH.TOP_LVL_NAME,
W_ORG_D.ATTRIB_06,
W_PRODUCT_GROUPS_D.PRODUCT_LINE,
W_PRODUCT_D.PROD_NAME)
The mapping is very simple:
Source Qualifier -> Stored procedure -> Update strategy (only two ports: ROW_WID and custom column) -> Target Table
When I launch the DAC Execution Plan the corresponding task take much time (40 minuts). But when I launch the corresponding Workflow from Informatica PowerCenter Workflow Manager this only take 50 seconds... when I see the log session for the task I can see that much time is spent on the time of the updates. For example, when DAC is running the writer updates 10000 records every 6/7 minuts, but when Workflow Manager is running thw writer updates 10000 records every 8/9 seconds.
So, what happens (in the DAC) to that so much time difference? Is there a way to reduce the execution time when the task is launched from DAC?
Thanks
Best Regards
Benjamin Tey

Have you tried using bulk load type?
In Workflow Manager can you open the associated task, navigate to the mapping tab and seled the target table.
What is the value for "Target load type" and which of the following boxes are checked: Insert, Update as Update, Update as Insert, Update else Insert, Delete?

Approval Procedures and Stored Procedures

Hi All
I have a problem with approval procedures and stored procedures.
I created an approval procedure to check if a value in the udf is selected or not . if not then a messge is produced to ask the user to select the person to approve the PO.
Biut now the problem is the PO's are linked approval templates to the error messge don't show before the approval template screen.
Please assist.
Thanks
Bongani Dlamini

Hi Gordon
The stored procedure is just for validating if the user has selected the udf value.
It is not for approval*
I created an approval template for this purpose. So my problem is when I add the Po to the system the SP doesn't kick-in and alert the user to select the person to approve the PO.
Process Flow.
User captures PO then select the value on the UDF Field ( Approver) The value selected is linked to a query which is used by the Approval Template
If this method is still not supported then please let me know .
Thanks
Bongani Dlamini

Result Sets and Stored Procedure

In advance one question in general - since I never know: What actually is a result set???
Is it a cursor with a direct connection to the server-side database-data ? Or is it just a copy of the results once "loaded" by the query and delivered by the Server to the client ???
Second: I have a Stored Procedure on a MS SQL Server 2000
I try to call the stored procedure via jdbc. The last query in the Stored Proc is a query relying on local temporary tables. If I execute the stored procedure by my java-class, i get a
java.sql.SQLException: [Microsoft][SQLServer JDBC Driver]No ResultSet set was produced.
The usual "Select, Update and Insert-stuff" works fine with JDBC.
Stored Procedures WITHOUT resultset work fine too.
But this one just refuses to give me the results.
Executing the same stored procedure in 'MS SQL-QUERYANALYZER' gives me my expected results.
Any ideas?
Sven

In advance one question in general - since I never
know: What actually is a result set???
Is it a cursor with a direct connection to the
server-side database-data ? Or is it just a copy of
the results once "loaded" by the query and delivered
by the Server to the client ???The first one, more or less. It relies on the connection to retrieve the results, .. if the connection is lost, so is the data in the ResultSet.
Second: I have a Stored Procedure on a *MS SQL Server
2000*
I try to call the stored procedure via jdbc. The last
query in the Stored Proc is a query relying on local
temporary tables. If I execute the stored procedure by
my java-class, i get a
java.sql.SQLException: [Microsoft][SQLServer JDBC
Driver]No ResultSet set was produced.Have you tried a basic stored procedure that should return a ResultSet?.. maybe one that doesn't rely on the temporary tables? You may want to also check with the support for the driver you're using since that's really where the ability to use stored procedures resides.

XML and Stored Procedures

Hi,
Is it possible to pass information to and from an Oracle stored procedure using a XML page? If so could you please point me to examples and/or white pages?
Thanks!
Tess

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Lillian Goodwin ([email protected]):
Hi,
Is it possible to pass information to and from an Oracle stored procedure using a XML page? If so could you please point me to examples and/or white pages?
Thanks!
Tess<HR></BLOCKQUOTE>
Look at DB Prism, it works like Oracle Web Server but is based on servlet technology.
With DB Prism you could make an stored procedure in PLSQL or Java and receive the XML values directly using the HTTP protocols.
DB Prism is at Plenix Web Site
This week DB Prism 1.1.0-dev will be ready for downloading including full compatibilty with OWS/OAS/IAS/Web DB toolkits.
Best regards, Marcelo
null

XML CLOB out from a stored procedure

I'm using Oracle 8.1.7 and OO4O(Oracle Objects for OLE)
8.1.7.0.1
I'm generating an XML string in a CLOB using the XSU in a stored
procedure.
I'm then trying to pass the CLOB as an out parameter for that
procedure to an
ASP page using OO4O. I get the following error on the line
where I call the ExecuteSql
method of the OO4O Database object:
Error Type:
Oracle Automation (0x800A01B8)
OIP-04796: Error in creating object instance
If anyone can give me a a solution to this or a better way to
do it I would much appreciate it. I've tried using a function
as well.
It does work if the CLOB is pulled from a database field, so I
think
the problem lies in the CLOB coming from the getXML method.
Since I'm
creating and XML datagram from relational tables, it doesn't
make much
sense to save the generated XML to a CLOB field and then load it
right
back to pass to the web page.
Thanks in advance...
Here's my code for the stored procedure:
Procedure SP_INI_XML
(result OUT CLOB)
IS
queryCtx SYS.DBMS_XMLQuery.ctxType;
begin
queryCtx := SYS.DBMS_XMLQuery.newContext(... SQL
statement ...);
SYS.DBMS_XMLQuery.setRowTag(queryCtx,'INI');
SYS.DBMS_XMLQuery.setRowsetTag(queryCtx,'ROOT');
SYS.DBMS_XMLQuery.setXSLT(queryCtx, 'http://site/file.xsl');
result := SYS.DBMS_XMLQuery.getXML(queryCtx);
SYS.DBMS_XMLQuery.closeContext(queryCtx);
end;
Here's my code from the ASP page:
Set ses = Server.CreateObject("OracleInProcServer.XOraSession")
Set con = ses.OpenDatabase(DBServer,ConStr,0)
Const ORATYPE_CLOB = 112
con.Parameters.Add "str",Null,2,ORATYPE_CLOB
con.ExecuteSql("begin SP_INI_XML(:str);end;")

Ah yes I see. Sorry I misunderstood what you were suggesting. I'm currently working on a test script that uses an approach similar to the one you mentioned, but I'm having trouble resolving foreign key relationships with test data.
I've no access to the tables or anything so it's proving to be a time consuming task!!
Is it required that all fields are given a value, even if they have a "DEFAULT" defined for them within the procedure. At the moment I'm using a rather cumbersome approach to this:
i.e.
With cmmAddRequest
    .ActiveConnection = strConnect
    .CommandType = adCmdText
    .CommandText = strSQL
    .Parameters(0).Direction = adParamInput
    .Parameters(1).Direction = adParamInput
    .Parameters(2).Direction = adParamInput
    .Parameters(3).Direction = adParamOutput
    .Parameters(4).Direction = adParamOutput
    .Parameters(5).Direction = adParamOutput
    .Parameters(0).Value = "COMP"
    .Parameters(1).Value = "FRML"
    .Parameters(2).Value = "1"
    .Execute
    WScript.Echo(.Parameters(5).Value)
End With

T-sql 2008 r2 place results from calling a stored procedure with parameters into a temp table

I would like to know if the following sql can be used to obtain specific columns from calling a stored procedure with parameters:
/* Create TempTable */
CREATE TABLE #tempTable
(MyDate SMALLDATETIME,
IntValue INT)
GO
/* Run SP and Insert Value in TempTable */
INSERT INTO #tempTable
(MyDate,
IntValue)
EXEC TestSP @parm1, @parm2
If the above does not work or there is a better way to accomplish this goal, please let me know how to change the sql?

declare @result varchar(100), @dSQL nvarchar(MAX)
set @dSQL = 'exec @res = TestSP '''+@parm1+''','' '''+@parm2+' '' '
print @dSQL
EXECUTE sp_executesql @dSQL, N'@res varchar(100) OUTPUT', @res = @result OUTPUT
select @result
A complicated way of saying
EXEC @ret = TestSP @parm1, @parm2
SELECT @ret
And not only compliacated, it introduces a window for SQL injection.
Erland Sommarskog, SQL Server MVP, [email protected]

XML result set storage and stored procedures

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