Named parameter binding

ODP.Net document said :
The position of an OracleParameter added into the
OracleParameterCollection is the binding position in the SQL statement.Position is 0-based and is used only for positional binding.
If named binding is
used, the position of an OracleParameter in the
OracleParameterCollection is ignored.
Then,how can I use named parameter binding ?

Look up the BindByName property of the Oracle Command. It defaults to false (bind params by position). Set it to true for bind by name.

Similar Messages

Name Parameter Binding

Is there any sample code showing how to do named parameter binding using ODBC? I have stored procedures with 100+ parameters and default values assigned to most of the parameters and I want to be able to only bind to the variables that I need to pass. I have it working with MS SQL but with oracle it in not binding to the correct parameter
Thanks

I am tring to do Named "Parameter Binding", I am using using straight ODBC from vc++ with the latest driver 9205. I have also tried the DataDirect drivers and using ADO from VB6.
The same code has worked fine with SQL Server but with oracle it always ingores the SQL_DESC_NAME setting in the SQLSetDescField statement and sets the first two parameters, not the 2nd and 3rd param.
Thanks,
Bill
-- The Stored Procedure
CREATE OR REPLACE PROCEDURE testme (param1 varchar2 :='Default1' , param2 varchar2 := 'Default2', param3 varchar2 := 'Default3') AS
BEGIN
INSERT INTO param_test(param_1, param_2, param_3, col_id) VALUES (param1, param2, param3, test_seq.nextval);
END;
C++ Source code
// Prepare the procedure invocation statement.
retcode = SQLPrepare(hstmt, (SQLCHAR*)"{call testme(?, ?)}", SQL_NTS);
if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
// Populate record 1 of ipd.
strcpy((char*)szQuote, "test2");
SQLBindParameter(hstmt, 1, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_VARCHAR, 30, 0, szQuote, 0, &cbValue);
// Get ipd handle and set the SQL_DESC_NAMED and SQL_DESC_UNNAMED fields
// for record #1.
//retcode = SQLAllocHandle(SQL_HANDLE_DESC, hdbc, &hIpd);
retcode = SQLGetStmtAttr(hstmt, SQL_ATTR_IMP_PARAM_DESC, &hIpd1, 0, 0);
retcode = SQLSetDescField(hIpd1, 1, SQL_DESC_NAME, "param2", SQL_NTS);
retcode = SQLSetDescField(hIpd1, 1, SQL_DESC_UNNAMED, SQL_NAMED, 0);
// Populate record 1 of ipd.
strcpy((char*)szQuote2, "test3");
SQLBindParameter(hstmt, 2, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_VARCHAR, 30, 0, szQuote2, 0, &cbValue);
// Get ipd handle and set the SQL_DESC_NAMED and SQL_DESC_UNNAMED fields
// for record #2.
//retcode = SQLAllocHandle(SQL_HANDLE_DESC, hdbc, &hIpd);
retcode = SQLGetStmtAttr(hstmt, SQL_ATTR_IMP_PARAM_DESC, &hIpd2, 0, 0);
retcode = SQLSetDescField(hIpd2, 2, SQL_DESC_NAME, "param3", SQL_NTS);
retcode = SQLSetDescField(hIpd2, 2, SQL_DESC_UNNAMED, SQL_NAMED, 0);
// Assuming that szQuote has been appropriately initialized,
// execute.
retcode = SQLExecute(hstmt);
if (!SQL_SUCCEEDED(retcode))
ExplainErrors(hstmt);
}

Why named parameter can't be used multiple times in PL/SQL block in JDBC

with the following PL/SQL block, when I run int in JDBC, I get an error,
it says, The number of parameter names does not match the number of registered parameters.
if all named parameters are used only once, then my program works fine.
My old program uses Oracle Forms to run the attached PL/SQL block correctly, I just want to run them in JDBC without more efforts, I don't want to rewrite all PL/SQL blocks.
Does oracle driver support this case? why the PL/SQL block can work in Oracle Forms but failed in JDBC?
Can we have an another solutions to avoid rewriting the PL/SQL block to stored procedure?
if I use following SQL:
BEGIN if :q is null then :q := 'X'; else :q := 'Y'; end if; END;
, Using java program:
import java.sql.*; public class RunPLSQLBlock { public static void main(String s[]) throws SQLException { String URL = "jdbc:oracle:thin:@192.168.11.199:1521:TIBSTEST"; Connection con = null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); con = (Connection) DriverManager.getConnection(URL, "FBP1DEV", "FBP1DEV"); String SQL = "BEGIN if :q is null then :q := 'X'; else :q := 'Y'; end if; END;"; CallableStatement stmt = con.prepareCall(SQL); stmt.registerOutParameter("q", Types.VARCHAR); stmt.setString("q", "A"); stmt.execute(); } catch (Exception e) { e.printStackTrace(); } finally { if (con != null) { con.close(); } } } }
in the coding, only "q" registered, I got:
java.sql.SQLException: The number of parameter names does not match the number of registered praremeters at oracle.jdbc.driver.OracleSql.setNamedParameters(OracleSql.java:314) at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:10096) at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:5693) at RunPLSQLBlock.main(RunPLSQLBlock.java:28)
now, tried to register 3 indexes, changed fragments are below.
import java.sql.*; public class RunPLSQLBlock { public static void main(String s[]) throws SQLException { String URL = "jdbc:oracle:thin:@192.168.11.199:1521:TIBSTEST"; Connection con = null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); con = (Connection) DriverManager.getConnection(URL, "FBP1DEV", "FBP1DEV"); String SQL = "BEGIN if :q is null then :q := 'X'; else :q := 'Y'; end if; END;"; CallableStatement stmt = con.prepareCall(SQL); stmt.registerOutParameter(1, Types.VARCHAR); stmt.registerOutParameter(2, Types.VARCHAR); stmt.registerOutParameter(3, Types.VARCHAR); stmt.setString(1, "A"); stmt.execute(); } catch (Exception e) { e.printStackTrace(); } finally { if (con != null) { con.close(); } } } }
now error changed to:
java.sql.SQLException: ORA-01006: bind variable does not exist at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:457) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:400) at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:926) at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:476) at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:200) at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:543) at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:208) at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:1416) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1757) at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:4372) at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:4595) at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:10100) at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:5693) at RunPLSQLBlock.main(RunPLSQLBlock.java:26)
, now tried register only 1 position like below,
CallableStatement stmt = con.prepareCall(SQL);   stmt.registerOutParameter(1, Types.VARCHAR);   stmt.setString(1, "A");   stmt.execute();
, it says:
java.sql.SQLException: Missing IN or OUT parameter at index:: 2 at oracle.jdbc.driver.OraclePreparedStatement.processCompletedBindRow(OraclePreparedStatement.java:2177) at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:4356) at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:4595) at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:10100) at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:5693) at RunPLSQLBlock.main(RunPLSQLBlock.java:26)
, now let try a OK case, which use all named parameters only once. coding like below, SQL and Java listed below.
BEGIN if :q is null then :r := 'X'; else :s := 'Y'; end if; EXCEPTION   WHEN NO_DATA_FOUND THEN     NULL; END;
import java.sql.*; public class RunPLSQLBlock { public static void main(String s[]) throws SQLException { String URL = "jdbc:oracle:thin:@192.168.11.199:1521:TIBSTEST"; Connection con = null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); con = (Connection) DriverManager.getConnection(URL, "FBP1DEV", "FBP1DEV"); String SQL = "BEGIN if :q is null then :r := 'X'; else :s := 'Y'; end if; END;"; CallableStatement stmt = con.prepareCall(SQL); stmt.registerOutParameter("q", Types.VARCHAR); stmt.registerOutParameter("r", Types.VARCHAR); stmt.registerOutParameter("s", Types.VARCHAR); stmt.setString("q", "A"); stmt.execute(); System.out.println("Q :" + stmt.getString("q")); System.out.println("R :" + stmt.getString("r")); System.out.println("S :" + stmt.getString("s")); } catch (Exception e) { e.printStackTrace(); } finally { if (con != null) { con.close(); } } } }
, the case give us the following output:
Q :A R :null S :Y
2nd part, I also tried another scheme, to use 'execute immediate', test code attached below, it also have errors.
begin execute immediate 'begin if :q is null then :q := ''X''; else :q := ''Y''; :r := ''Z''; end if; end;' using in out :q, out :r; end;
, Java Code:
import java.sql.*; public class RunDynamicSQL { public static void main(String s[]) throws SQLException { String URL = "jdbc:oracle:thin:@192.168.11.199:1521:TIBSTEST"; Connection con = null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); con = (Connection) DriverManager.getConnection(URL, "FBP1DEV", "FBP1DEV"); String SQL ="begin execute immediate 'begin if :q is null then :q := ''X''; else :q := ''Y''; :r := ''Z''; end if; end;' using in out :q, out :r; end;"; CallableStatement stmt = con.prepareCall(SQL); stmt.registerOutParameter("q", Types.VARCHAR); stmt.registerOutParameter("r", Types.VARCHAR); stmt.setString("q", "A"); stmt.execute(); System.out.println("Q :" + stmt.getString("q")); System.out.println("R :" + stmt.getString("r")); } catch (Exception e) { e.printStackTrace(); } finally { if (con != null) { con.close(); } } } }
, the output is, we can find when parameter 'q' is IN OUT mode, we can't get its final value:
Q :null R :Z
, now I tried my workaround, it works fine by using a temporary variable, now my named parameter is split to 2 roles, one is for IN, another is for OUT, now I can get final out value.
declare q clob; r clob; begin q := ?; r := ?; execute immediate 'begin if :q is null then :q := ''X''; else :q := ''Y''; :r := ''Z''; end if; end;' using in out q, out r; ? := q; ? := r; end;
, my test java code,
import java.sql.*; public class RunDynamicSQL { public static void main(String s[]) throws SQLException { String URL = "jdbc:oracle:thin:@192.168.11.199:1521:TIBSTEST"; Connection con = null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); con = (Connection) DriverManager.getConnection(URL, "FBP1DEV", "FBP1DEV"); String SQL ="declare q clob;r clob; begin q := ?; r := ?; execute immediate 'begin if :q is null then :q := ''X''; else :q := ''Y''; :r := ''Z''; end if; end;' using in out q, out r; ? := q; ? := r; end;"; CallableStatement stmt = con.prepareCall(SQL); stmt.registerOutParameter(3, Types.VARCHAR); stmt.registerOutParameter(4, Types.VARCHAR); stmt.setString(1, "A"); stmt.setString(2, "A"); stmt.execute(); System.out.println("Q :" + stmt.getString(3)); System.out.println("R :" + stmt.getString(4)); } catch (Exception e) { e.printStackTrace(); } finally { if (con != null) { con.close(); } } } }
, the output is expected,
Q :Y R :Z
Database:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
JDBC Driver, extracted from ojdbc6_g.jar/META-INF/MANIFEST.MF :
Created-By: 1.5.0_30-b03 (Sun Microsystems Inc.)
Implementation-Vendor: Oracle Corporation
Implementation-Title: JDBC debug
Implementation-Version: 11.2.0.3.0
Repository-Id: JAVAVM_11.2.0.3.0_LINUX_110823
Specification-Vendor: Sun Microsystems Inc.
Specification-Title: JDBC
Specification-Version: 4.0
Main-Class: oracle.jdbc.OracleDriver
JDK:
java version "1.7.0"
Java(TM) SE Runtime Environment (build 1.7.0-b147)
Java HotSpot(TM) Client VM (build 21.0-b17, mixed mode, sharing)
Edited by: jamxval on 2013-3-22 2:01PM (UTC+08:00), Give full test java program and SQL, added environment/API level; Attached another problem.
Edited by: jamxval on 2013-3-26 17:57 (UTC +08), Adjust code style

Hi, thanks for your response, now I see, the named parameter is for stored procedure only, for PL/SQL block we name it placeholder name.
After cast my java.sql.CallableStatement to oracle.jdbc.OracleCallableStatement, I can find setStringAtName,
now, I have only one question:I can't find corresponding methods for registerOutputParameter, how we fetch output value?
I tried to callableStatement.getString("q"); it reports errors, but there are no ordinal binding in my source code, does placeholder names doesn't support OUT mode?
Java:
CallableStatement stmt = con.prepareCall("BEGIN if :q is null then :r := 'X'; else :s := 'Y'; end if; END;");
oracle.jdbc.OracleCallableStatement call = (oracle.jdbc.OracleCallableStatement) stmt;
call.registerOutParameter("q", Types.VARCHAR);
call.registerOutParameter("r", Types.VARCHAR);
call.registerOutParameter("s", Types.VARCHAR);
call.setStringAtName("q", "A");
call.setStringAtName("r", "A");
call.setStringAtName("s", "A");
call.execute();
System.out.println("Q :" + call.getString("q"));
</Java>
<output>
java.sql.SQLException: 不允许的操作: Ordinal binding and Named binding cannot be combined!
     at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
     at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
     at oracle.jdbc.driver.OracleCallableStatement.getString(OracleCallableStatement.java:2834)
     at RunPLSQLBlock.main(RunPLSQLBlock.java:33)
</output>by the way, in my below-mentioned SQL 'problematic', when my code uses 'execute immediate' and use placeholder names in IN OUT mode, we always get NULL value (i.e. ':q'), but we can get final value of ':r' when ':r' is OUT mode only; now I get a workaround attached in below-mentioned 'my workaround' block, which split the IN OUT roles to 2 parts, it can work now;
It seems that the difference between 'problematic' and 'my workaround' imply that there are something work unexpectedly when the driver process the placeholder names, because 'my workaround' and ':r in problematic case' make sure the 'execute immediate' returned output values correctly, unluckly driver layer can't get return values.
<SQL name = 'problematic'>
begin
     execute immediate 'begin if :q is null then :q := ''X''; else :q := ''Y''; :r := ''Z''; end if; end;'
     using in out :q, out :r;
end;
</SQL>
<SQL name='my workaround'>
declare
     q clob;
     r clob;
begin
     q := ?;
     r := ?;
     execute immediate 'begin if :q is null then :q := ''X''; else :q := ''Y''; :r := ''Z''; end if; end;' using in out q, out r;
     ? := q;
     ? := r;
end;Edited by: EJP on 26/03/2013 14:14

PL/SQL:- Invalid Parameter binding

While calling a pl/sql function returning table type is shows error:
Invalid parameter binding
Parameter name: ""

The problem is coming from .NET and most probably for NULL values.
SQL> set serverout on
SQL> create TYPE TEMP_TABLE AS OBJECT (
2 COLUMN1 VARCHAR2(128),
3 COLUMN2 VARCHAR2(32),
4 COLUMN3 VARCHAR2(128));
5 /
Type created.
SQL> create TYPE TEMP_TABLE_REC AS TABLE OF TEMP_TABLE;
2 /
Type created.
SQL> create function SP_TEMP RETURN TEMP_TABLE_REC AS
2
3 v_process_inputs TEMP_TABLE_REC :=TEMP_TABLE_REC();
4
5 CURSOR CUR_EQUIP IS
6 SELECT 'b' FROM dual
7 UNION
8 SELECT 'f' FROM dual;
9
10 REC_EQUIP CUR_EQUIP%ROWTYPE;
11
12 BEGIN
13
14 OPEN CUR_EQUIP;
15 LOOP
16 FETCH CUR_EQUIP INTO REC_EQUIP;
17 EXIT WHEN CUR_EQUIP%NOTFOUND;
18 v_process_inputs.EXTEND;
19
20 v_process_inputs(1):=TEMP_TABLE('a','b','c');
21
22 END LOOP;
23 CLOSE CUR_EQUIP;
24
25 RETURN v_process_inputs;
26 END SP_TEMP;
27 /
Function created.
SQL> declare
2     result temp_table_rec;
3 begin
4    -- Call the function
5    result := sp_temp;
6    FOR i in 1..RESULT.COUNT LOOP
7     dbms_output.put_line(RESULT(i).COLUMN1||'--'||RESULT(i).COLUMN2||'--'||RESULT(i).COLUMN3);
8    END LOOP;
9 end;
10 /
a--b--c
PL/SQL procedure successfully completed.Note the last null values ----.

How to pass parameter [bind variable or substitution variable] to a view?

How can I pass a parameter [bind variable or substitution variable] to a view in Oracle?
Some will tell me that this is not necessary, that I can only pass the parameter when I query the view, but I found some case where this cause performance issue. In long view where I use subquery factoring [WITH], it's necessary to pass the parameter many time through different subqueries and not only to the resulting view.
In other database (SQL Server, Access), we can pass parameters through query. I can't find how to do that in Oracle. Can some one tell me what is the approach suggest by Oracle on that subject?
Thank you in advance,
MB
What I can do:
CREATE VIEW "HR"."EMP_NAME" ("FIRST_NAME", "LAST_NAME")
AS
SELECT FIRST_NAME, LAST_NAME FROM EMPLOYEES;
What I want to do:
CREATE VIEW "HR"."EMP_NAME" ("FIRST_NAME", "LAST_NAME")(prmEMP_ID)
AS
SELECT FIRST_NAME, LAST_NAME FROM EMPLOYEES WHERE EMPLOYEE_ID IN (:prmEMP_ID);

Blais wrote:
How can I pass a parameter [bind variable or substitution variable] to a view in Oracle?
Some will tell me that this is not necessary, that I can only pass the parameter when I query the view, but I found some case where this cause performance issue. In long view where I use subquery factoring [WITH], it's necessary to pass the parameter many time through different subqueries and not only to the resulting view.Yes, there can be performance issues. Views are a form of dynamic SQL and it is hard to predict how they will perform later.
You can't pass parameters to a view. They are not functions. The mechanism to put the values in is what you mentioned, passing the parameter when you query the view.
In other database (SQL Server, Access), we can pass parameters through query. I can't find how to do that in Oracle. Can some one tell me what is the approach suggest by Oracle on that subject? This functionality is not supported.
What I can do:
CREATE VIEW "HR"."EMP_NAME" ("FIRST_NAME", "LAST_NAME")
AS
SELECT FIRST_NAME, LAST_NAME FROM EMPLOYEES;
What I want to do:
CREATE VIEW "HR"."EMP_NAME" ("FIRST_NAME", "LAST_NAME")(prmEMP_ID)
AS
SELECT FIRST_NAME, LAST_NAME FROM EMPLOYEES WHERE EMPLOYEE_ID IN (:prmEMP_ID);Include the bind value when you use the view in a SELECT. The value will be applied to the view at run-time, somthing like
CREATE VIEW "HR"."EMP_NAME_VW" ("FIRST_NAME", "LAST_NAME","EMPLOYEE_ID")(prmEMP_ID)
AS SELECT FIRST_NAME, LAST_NAME FROM EMPLOYEES;
select *
from emp_name_vw
WHERE EMPLOYEE_ID IN (:prmEMP_ID);To use EMPLOYEE_ID I added it to your list of columns in the view so it can be referenced in the WHERE clause. If you don't want to see that value don't select it from the view.

Named parameter substitution failure in set clause of update statement.

Hi ,
     Following is a method in my session bean. Its trying to update 'Activities' entity through JPQL. I am using a named parameter 'var2' to set the value of 'actPst1Cd' field.
          String stmt = "update Activities A set A.actPstlCd = :var2 where A.actRmatId = :var1";
          Query query = em.createQuery(stmt);
          query = query.setParameter("var1", new BigDecimal(1));
          query = query.setParameter("var2", getVar2Value());
          return query.executeUpdate();
     On execution I am getting the following error.
     java.lang.IllegalArgumentException: There is no parameter with name ':var2' in this JPQL-query. at com.sap.engine.services.orpersistence.query.QueryImpl.assertValidTypedValue(QueryImpl.java:303) at com.sap.engine.services.orpersistence.query.QueryImpl.setParameter(QueryImpl.java:369) at session.Test2Bean.testUpdate(Test2Bean.java:53) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585)
     The named parameters in where clause are getting substituted successfully. Can anyone please tell me why its failing in set clause?
            I am using SAP NetWeaver Application Server, Java(TM) EE 5 Edition for deployment.
Thanks,
Prasoon.

Hi Robin ,
   Thanks for replying..
   Issue I have Posted here is coming in <b>Java EE 5 Edition</b>.
   Regarding another post, I wanted to try CE 7.1 version when I found that my current entities ( which works in Java EE 5 Edition ) are giving error in CE7.1 because of Bigdecimal check in Entity Validation, hence posted another post.
Thanks,
Prasoon

[Oracle JDBC Driver]Invalid parameter binding(s).

Hi there
I am using the OracleCachedRowSet, and it works fine until I tries to update a resultset with a null value. When I call rs.acceptChanges(connection); it results in the following exception.
Please help if anyone has found a workaround to this problem.
java.sql.SQLException: [BEA][Oracle JDBC Driver]Invalid parameter binding(s).
at weblogic.jdbc.base.BaseExceptions.createException(Unknown Source)
at weblogic.jdbc.base.BaseExceptions.getException(Unknown Source)
at weblogic.jdbc.base.BaseParameters.getParameter(Unknown Source)
at weblogic.jdbc.base.BasePreparedStatement.setObjectInternal(Unknown Source)
at weblogic.jdbc.base.BasePreparedStatement.setObject(Unknown Source)
at weblogic.jdbc.wrapper.PreparedStatement.setObject(PreparedStatement.java:268)
at oracle.jdbc.rowset.OracleCachedRowSetWriter.updateRow(OracleCachedRowSetWriter.java:429)
at oracle.jdbc.rowset.OracleCachedRowSetWriter.writeData(OracleCachedRowSetWriter.java:534)
at oracle.jdbc.rowset.OracleCachedRowSet.acceptChanges(OracleCachedRowSet.java:2926)
at eurostat.Items.updateRS(Items.java:192)
at eurostat.DBConnectionBean.updateRS(DBConnectionBean.java:94)
at jsp_servlet.__mainpage._jspService(MainPage.jsp:248)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1006)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.bea.wlw.netui.pageflow.PageFlowJspFilter.doFilter(PageFlowJspFilter.java:246)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6724)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3764)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2644)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)

Hi Avi
Thanks for the suggestion, but I don't thint that is the problem. In other forums I have found people describing the same problem(both with Oracle and Sun's implementation of CachedRowSet). See this link for an example http://bugs.mysql.com/bug.php?id=9831. So I figured that those other people needed to have a solution to the problem, but I can't find it.
/Thomas

Ejb/ql and named parameter in like

Hello,
With toplink/jpa, I have this:
"SELECT o FROM EtdSignaletique o WHERE o.name LIKE :name"
For the "name" parameter, I have to pass "Lennon%" (this column in our enterprise db seems to be space-padded; I don't have any control on that).
I think it would be better to have the "%" directly in the query, how could I do this?

This is not possible with parameter binding, which is on by default. The bound valu must have the wildcard in it.
I had no success adding the wildcard into a JPQL statement without binding since it is considered part of the parameter name and is then reported as an illegal parameter name.
I believe this one is up to your application code.
Doug

SAP Cloud For Customer : Add Extension Fields under the Parameter Binding For Mashups

Hi Experts,
I have requirements for the mashups, I have created the extension field in cloud for customer "Registered Product" TI screen i want to add that newly created extension fields under the Mashup Parameter Binding List.
1) Is it possible ? If yes then How it is?
2) Any Standard process or we go for the SDK to enhance the standard screen port binding?
For more information refer the below screen.
Awaiting for your reply or suggestion....
Many Thanks,
Mithun

I have done the below changes on the custom BO.
Step 1 . In the Event Handler i have change as per the previous reply.
Step 2. Assign that Event to Import OnFire.
I am getting this error when open the Account Screen and go to that Embed Tab.
"Object [object Object] has no method 'getRawValue'".
Kindly check the above steps are correct or any step missing.
Many Thanks,
Mithun

OWB embeded process flow - parameter binding problem

I've installed and Oracle 10g Database, after the database installation I added the Oracle Workflow server software. To complete the installation I ran the wfca.
Later I get to define a process flow in OWB (cheesy) and the process flow seems to be working well (I've done all the registrations necesary also ), but when I am trying to do the parameter binding is not working. I do get the window prompt for the parameter and I enter the date parameter ( I tried different formats like 'YYYY/MM/DD' 'dd-mon-yyyy'), but after I check the runtime in the web browser the parameter is not pass to next process. I tried many things for the last week but I cannot get it to pass the parameter from one process to another.
Any ideas,
HELP !!!!!

did u manage to resolve this issue? we are facing the same problem.

Parameter Binding Issue

I have an advanced function that that looks something like this:
function Audit-System
[CmdletBinding()]
param(
[Parameter(Position=0,Mandatory=$True,ValueFromPipeline=$True,ValueFromPipelinebyPropertyName=$True)]
[Alias("Name")]
[string[]]$ComputerName
Process
foreach($computer in $ComputerName)
## Do stuff for every computer
Write-Verbose $computer
The followimg work ok:
"computer1","computer2" | Audit-System
Audit-System "computer1","computer2"
Audit-System "computer1"
The following doesn't work:
Get-ADComputer -Filter * SearchBase "CN=Computers,DC=contoso,DC=com" | Audit-System -Verbose
I would have thought that because the [Microsoft.ActiveDirectory.Management.ADComputer] has a 'Name' property parameter binding would have matched it up with my $ComputerName parameter. Why doesn't this work?

What version of PowerShell are you running? I have this working running PowerShell V4 and also having installed KB2928680 which
fixed a known issue with PowerShell V4 and the use of -Properties * with Get-ADUser and Get-ADComputer.
Interesting. I still need to pipe through select on a fully patched Win8.1 and Win7 (with V4 installed).
Don't retire TechNet! -
(Don't give up yet - 12,700+ strong and growing)
Disregard this. After more testing (this time using the function), I run into the same issue. Appears that this particular issue is still occurring. I know there is a connect issue submitted for this, but wasn't able to locate it (at the time of this post).
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[OCI] Parameter Binding, repeated Statements with differing values

Hello
I am working on an application written in C which sends about 50 different SQL Statements to an Oracle Database using OCI. These Statements are executed repeatedly with different values.
In order to improve performance I would like to know what possibilities I have.
Whats the benefit of the following "techniques" ?
- Parameter Binding
- Statement Caching
What else could I look into?
with friendly greetings.

It doesn't take zero-time of course, and it does level-off after a while, but array-bind/define or pre-fetching can make a significant impact on performance:
truncated table: 0.907 / 0.918
insert_point_stru_1stmt_1commit: x100,000: 0.141 / 0.144Above I truncate the table to get repeatable numbers; deleting all rows from a previous run leaves a large free list (I guess...), and performance of this little contrived benchmark degrades non-negligeably otherwise. This is a single array-bind insert statement.
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@0: 7.594 / 7.608
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@1: 4.000 / 4.004
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@10: 0.906 / 0.910
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@100: 0.297 / 0.288
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@1,000: 0.204 / 0.204
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@10,000: 0.265 / 0.268
fetched 100,000 rows. (0 errors)Above I do a regular "scalar" define, but turn pre-fetching on (default is one row, but I tested with pre-fetching completly off too). @N means pre-fetch N rows.
select_points_array: x100,000@10: 0.969 / 0.967
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@100: 0.250 / 0.251
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@1,000: 0.156 / 0.167
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@10,000: 0.156 / 0.157
fetched 100,000 rows. (0 errors)Above I use array-defines instead of pre-fetch.
select_points_struct: x100,000@10: 0.938 / 0.935
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@100: 0.219 / 0.217
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@1,000: 0.140 / 0.140
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@1,000: 0.140 / 0.140Above I use array-of-struct defines instead of pre-fetch or array-bind. Performance is just a little better, probably because of better memory "locality" with structures.
The table is simple:
create table point_tab(
id number,
x binary_float,
y binary_float,
z binary_float
So each row is 22 + 4 + 4 + 4 = 34 bytes. There are no constraints or indexes of course to make it as fast as possible (this is 11g on XP win32, server and client on the same machine, single user, IPC protocol, so it doesn't get much better than this, and is not realistic of true client-server multi-user conditions).
There aren't enough data point to confirm or not your prediction that the advantage of array-bind level-off at the packet size threshold, but what you write makes sense to me.
So I went back and tried more sizes. 8K divided by 34 bytes is 240 rows, so I selected 250 rows as the "middle", and bracketed it with 2 upper and lower values which "double" up or down the number of rows:
truncated table: 0.953 / 0.960
insert_point_stru_1stmt_1commit: x100,000: 0.219 / 0.220
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@67: 0.329 / 0.320
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@125: 0.297 / 0.296
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@250: 0.250 / 0.237
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@500: 0.218 / 0.210
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@1,000: 0.187 / 0.195
fetched 99,964 rows. (0 errors)
select_points_array: x99,964@67: 0.297 / 0.294
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@125: 0.235 / 0.236
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@250: 0.203 / 0.206
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@500: 0.188 / 0.179
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@1,000: 0.156 / 0.165
fetched 99,964 rows. (0 errors)
select_points_struct: x99,964@67: 0.250 / 0.254
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@125: 0.203 / 0.207
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@250: 0.172 / 0.168
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@500: 0.157 / 0.152
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@1,000: 0.125 / 0.129As you can see, it still gets faster at 1,000, which is about 32K. I don't know the packet size of course, but 32K sounds big for a packet.
truncated table: 2.937 / 2.945
insert_point_stru_1stmt_1commit: x100,000: 0.328 / 0.324
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@1,000: 0.250 / 0.250
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@2,000: 0.266 / 0.262
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@3,000: 0.250 / 0.254
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@4,000: 0.266 / 0.273
fetched 100,000 rows. (0 errors)
select_first_n_points: x100,000@5,000: 0.281 / 0.278
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@1,000: 0.172 / 0.165
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@2,000: 0.157 / 0.159
fetched 99,000 rows. (0 errors)
select_points_array: x99,000@3,000: 0.156 / 0.157
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@4,000: 0.141 / 0.155
fetched 100,000 rows. (0 errors)
select_points_array: x100,000@5,000: 0.157 / 0.164
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@1,000: 0.125 / 0.129
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@2,000: 0.125 / 0.123
fetched 99,000 rows. (0 errors)
select_points_struct: x99,000@3,000: 0.125 / 0.120
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@4,000: 0.125 / 0.121
fetched 100,000 rows. (0 errors)
select_points_struct: x100,000@5,000: 0.125 / 0.122Above 32K, there doesn't seem to be much benefit (at least in this config. My colleague on linux64 is consistently faster in benchmarks, even connecting to the same servers, when we have the same exact machine). So 32K may indeed be a threshold of sort.
In all, I hope I've shown there is value in array-binds (or defines), or even simple pre-fetching (but the latter helps in selects only). I don't think one can very often take advantage of it, and I have no clue how it compares to direct-path calls, but value there is still IMHO. --DD

Positional vs. named parameter passing

Is named parameter passing always better than positional when calling a PL/SQL stored procedure? What are the benefits and pitfalls of each method. Are there instances where you prefer one over the other?

Hi Roger,
I personally prefer named notation due to its much enhanced clarity. It greatly helps a subsequent developer by not forcing him/her to look up the spec of the procedure or function each time they see it referenced in the code which calls it (I have a terrible short-term memory - so this is particularly frustrating to me).
Additionally, if some whacko comes by and changes the order (but not the names) of the parameters to the referenced procedure or function - named notation protects you from having to change your code - with positional notation - you MUST change your code.
Of course, named notation is not supported in normal SQL which calls a function, only positional is. But for PL/SQL I say use named notation all the way.
I've never tested a comparison of performance, but I would take an educated guess that it is roughly equivalent (within a few microseconds) between the approaches.
One example I think will show you the benefits of named over positional is a call to DBMS_STATS.GATHER_TABLE_STATS. This packaged procedure is used all of the time, but it has a large number of arguments. Changing a call to it can be challenging with positional notation if you don't remember the parameter order.
Here's the named notation call:
BEGIN
   DBMS_STATS.gather_table_stats (ownname               => 'SCOTT'
                                , tabname               => 'EMP'
                                , partname              => NULL
                                , estimate_percent      => DBMS_STATS.auto_sample_size
                                , block_sample          => FALSE
                                , method_opt            => 'FOR ALL INDEXED COLUMNS SIZE 254'
                                , DEGREE                => NULL
                                , granularity           => 'ALL'
                                , CASCADE               => TRUE
                                , no_invalidate         => FALSE
END;
/Here's the positional notation call:
BEGIN
   DBMS_STATS.gather_table_stats ('SCOTT'
                                , 'EMP'
                                , NULL
                                , DBMS_STATS.auto_sample_size
                                , FALSE
                                , 'FOR ALL INDEXED COLUMNS SIZE 254'
                                , NULL
                                , 'ALL'
                                , TRUE
                                , FALSE
END;
/I strongly prefer to support code with the first example over the 2nd.
Hope this helps...
Message was edited by:
PDaddy
Message was edited by:
PDaddy

Help with Invalid Parameter Binding issue

let me prefix this with the fact that I'm about as ignorant as can be when it comes to oracle so speak slowly and hopefully I'll catch the low hanging fruit.
I've inherited a project that someone else wrote and I'm trying to make the code base work, but I am getting 2 error messages and don't really know where to start to fix it.
My project is using ActiveReports (yea I hate it too) to call a function into a 10g database. It is returning an error saying Invalid Identifier. When I try to run the function in visual studio I get an invalid parameter binding error message and it says parameter name "" (empty quotes, so who knows).
here's what I have:
the type definition:
TYPE type_A AS OBJECT (date_a VARCHAR2(25), start_date VARCHAR2(25), end_date VARCHAR2(25), items_total INT, items_with_x INT, items_without_x INT, items_with_x_percent DECIMAL(7,6), items_without_x_percent DECIMAL(7,6))
the type table:
TYPE type_A_table AS TABLE OF type_A
the function that is erroring:
<em>FUNCTION func_A (start_date_str IN VARCHAR2, end_date_str IN VARCHAR2) RETURN type_A_table PIPELINED
IS
PRAGMA AUTONOMOUS_TRANSACTION;
    start_date_filter TIMESTAMP := TO_DATE(start_date_str,'MM/dd/yyyy HH:MI:ss AM');
    end_date_filter TIMESTAMP := TO_DATE(end_date_str,'MM/dd/yyyy HH:MI:ss AM');
    items_total INT;
    items_with_x INT;
    items_without_x INT;
    items_with_x_percent DECIMAL(7,6);
    items_without_x_percent DECIMAL(7,6);
    temp type_A;
BEGIN
    SELECT COUNT(*) INTO items_total FROM atable WHERE (create_date BETWEEN start_date_filter AND end_date_filter);
    SELECT COUNT(*) INTO items_with_x FROM atable WHERE conditionx=1 AND (create_date BETWEEN start_date_filter AND end_date_filter);
    SELECT COUNT(*) INTO items_without_x FROM atable WHERE conditionx=0 AND (create_date BETWEEN start_date_filter AND end_date_filter);
    items_with_x_percent := 0.00;
    items_without_x_percent := 0.00;
    IF items_total > 0 THEN
        items_with_x_percent := (items_with_x*1.00)/(items_total*1.00);
        items_without_x_percent := (items_without_x*1.00)/(items_total*1.00);
    END IF;
    temp := type_A(
        TO_CHAR(CURRENT_DATE,'MM/dd/yyyy HH:MI:ss AM'),
        start_date_str,
        end_date_str,
        items_total,
        items_with_x,
        items_without_x,
        items_with_x_percent,
        items_without_x_percent
    PIPE ROW(temp);
    RETURN;
END;</em>
I've changed some of the details here from the original so there may be some syntax errors but hopefully you get the gist of the situation.
any help would be appreciated.
Thanks

activereports is a report generator for .net
as for why it's written the way it is, I have no idea. Like I said, I didn't write it, I'm only trying to get it to work. There is far too much of it (and I'm far under-skilled) to go back and re-write everything the way it should be.
this function is pretty simple, it takes a start & end date as a string as parameters to the function. it converts those to timestamps and query's an existing table with data for the number of times condition X is true or false with in that date range. This is what the report being generated reports on.
This one was short and simple which is why I posted it. Others are far more complex and do loop, but for the sake of simplicity I posted this one. I get the same error with all the rest and I figure if I can get one working, the rest probably suffer from the same issue so fixing the rest should be fairly straight forward.
as for priv's the user is granted all priv's (that are available when you create a new user in 10g XE's web admin interface), and it won't let me grant/remove priv's from the visual studio addin for myself.

PreparedStatement parameter binding

Hello,
I am new to JDBC and java technology. I have experience with SQL, PL/SQL and I am quite shocked, that binding parameters using PreparedStatement class is based on parameter index instead of the parameter name.
It is quite common in PL/SQL to use paramter name to bind a value to it.
E.g. if I use query "select * from foo where id = :id and name = :name" I can bind parameters using dbms_sql.bind_variable(query, "id", 5) dbms_sql.bind_variable(query, "name", "london").
However, in java I jave to bind using parameter index e.g query.setInt(1, 5), query.setString(2, new String("london")). Now the problems are
- what if the sql programmer changes code "select * from foo where id = ? and name = ?" to "select * from foo where name = ? and id = ?"
- think of a quite more complicated query, e.g. query with size of few kB - there can be a parameter repeated many times (id, date range etc) so I need to bind this parameter many times, instead of simple one bind by name
- think of a dynamicaly generated query, where it is seriously complicated to follow the parameter indexes (sql block repeating, dynamicaly generated where clausules etc) and again binding by name is much more easier than indexed binding
So my question is: Do you know of any class that supports binding by name ? Is there any workaround how to solve above mentioned issues ?
And finally, what is the reason to use parameters by index instead of naming, which is I belive more obvious in database programming ?
I am looking forward to your answers.
Kindest regards,
Kamil Poturnaj
Mgr. Kamil Poturnaj, MicroStep-MIS
Ilkovicova 3, 841 04 Bratislava, Slovakia

- what if the sql programmer changes code "select *
from foo where id = ? and name = ?" to "select * from
foo where name = ? and id = ?"Tell him "please stop doing that" :-)
He could also add a third parameter, "address = ?" which would also break it (even if the "?" were spelled ":address").
The SQL statement and the code that binds / extracts values need to be modified in sync.
- think of a quite more complicated query, e.g. query
with size of few kB - there can be a parameter
repeated many times (id, date range etc) so I need to
bind this parameter many times, instead of simple one
bind by nameThough I'm no great fan of vendor-specific 70-style languages, I'd recommend writing a PL/SQL procedure if a query gets very big.
So my question is: Do you know of any class that
supports binding by name ? Is there any workaround how
to solve above mentioned issues ?I don't know of such a package; anyone...?
It should be a nice programming exercise to write one. Something like:
    BindStatement stmt = new BindStatement("select a, :id from foo where id = :id and name = :name");
    stmt.set("name", "John");
    stmt.set("id", 1234);BindStatement would need to locate each occurrence of ":X" and create an SQL string with them replaced with "?"s. It would also need to store the positions where each ":X" occurred, so that when set("id",...) is called, it could do set(1,...); set(2,...); for the underlying statement.
Occurrences of ":X" within strings need to be considered; the easy way is to replace there too.
Unless I'm missing some gotcha, shouldn't take more than a couple of hours to write.
And finally, what is the reason to use parameters by
index instead of naming, which is I belive more
obvious in database programming ?I can only speak from my experience: sql statements within Java code tend to be simple, and the "?" syntax is quite adequate there. Complex statements, if needed, are hidden in PL/SQL. Large systems use beans and automatically generated sql glue. This seems to be rarely a problem.

Named parameter binding

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