Error in Bind Variable

Hi Friends,
DECLARE
date_diff DATE;
date_diff1 DATE;
BEGIN
IF :REQUEST_TYPE = 'I' THEN
SELECT TO_DATE ('07.07.2008', 'dd.mm.rr') + 10
INTO date_diff FROM DUAL;
dbms_output.put_line(TO_CHAR(date_diff, 'dd.mm.yyyy'));
ELSIF :REQUEST_TYPE = 'R' THEN
SELECT TO_DATE ('07.07.2008', 'dd.mm.rr') + 30
INTO date_diff1 FROM DUAL;
dbms_output.put_line(TO_CHAR(date_diff1, 'dd.mm.yyyy'));
END IF;
EXCEPTION
WHEN OTHERS
THEN
dbms_output.put_line('NOT a valid DATE');
END;
Above code shows the below error.
Bind variable "REQUEST_TYPE" not declared.
Can any one correct it. Please help me.
Message was edited by:
Sana.C

Can not reproduce
SQL> set serveroutput on
SQL> var request_type varchar2(2)
SQL> exec :request_type := 'I'
PL/SQL procedure successfully completed.
SQL>
SQL> DECLARE
2    date_diff DATE;
3    date_diff1 DATE;
4 BEGIN
5    IF :REQUEST_TYPE = 'I' THEN
6      date_diff := to_date('07.07.2008','dd.mm.yyyy') + 10;
7      dbms_output.put_line(TO_CHAR(date_diff, 'dd.mm.yyyy'));
8    ELSIF :REQUEST_TYPE = 'R' THEN
9      date_diff1 := to_date('07.07.2008','dd.mm.yyyy') + 30;
10      dbms_output.put_line(TO_CHAR(date_diff1, 'dd.mm.yyyy'));
11    END IF;
12   END;
13 /
17.07.2008
PL/SQL procedure successfully completed.
SQL>

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     java.sql.ResultSet oracle.jdbc.driver.OraclePreparedStatement.executeQuery()
     void oracle.jbo.server.QueryCollection.executeQuery(java.lang.Object[], int)
     void oracle.jbo.server.ViewObjectImpl.executeQueryForCollection(java.lang.Object, java.lang.Object[], int)
     void oracle.jbo.server.ViewRowSetImpl.execute(boolean, boolean)
     void oracle.jbo.server.ViewRowSetImpl.executeQuery()
     void oracle.jbo.server.ViewObjectImpl.executeQuery()
     void MyPkg.objects.MyVectorRow.checkRule1(oracle.jbo.ApplicationModule, int)
     void MyPkg.servlet.MyServlet.doPost(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     void javax.servlet.http.HttpServlet.service(com.evermind.server.http.EvermindHttpServletRequest, com.evermind.server.http.EvermindHttpServletResponse)
     void javax.servlet.http.HttpServlet.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     void javax.servlet.http.HttpServlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
     void com.evermind.server.http.ServletRequestDispatcher.invoke(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
     void com.evermind.server.http.ServletRequestDispatcher.forwardInternal(javax.servlet.ServletRequest, javax.servlet.http.HttpServletResponse)
     boolean com.evermind.server.http.HttpRequestHandler.processRequest(com.evermind.server.ApplicationServerThread, com.evermind.server.http.EvermindHttpServletRequest, com.evermind.server.http.EvermindHttpServletResponse, java.io.InputStream, java.io.OutputStream, boolean)
     void com.evermind.server.http.HttpRequestHandler.run(java.lang.Thread)
     void com.evermind.util.ThreadPoolThread.run()
I have tried commented either MyRow.checkRule1 or MyRow.checkRule2 for execution. No error occurs for that. The problem occurs when i put the two together in a loop ... the parameter number for Pkg1.MyFunctionOne is less than Pkg2.MyFunctionTwo, which corresponds to the error message 'Bind variable does not exist' ... any cache for calling the function that causes the error at running the vo.executeQuery statement?
Question: Does anyone has any ideas about the error origin and solution? (It is very important to me because i still have several check rules in addition to those mentioned 2 rules.)
Thanks for replying!

Oic ... thanks for your help, but i find a strange thing. No error message is prompted when i break the loop as follows:
// Get vector element to perform validation for rule 1 and rule 2
for (int i = 0; i < MyVector.size(); i++) {
MyVectorRow MyRow = (MyVectorRow) MyVector.elementAt(i);
MyRow.checkRule1(am, i);
// Get vector element to perform validation for rule 1 and rule 2
for (int i = 0; i < MyVector.size(); i++) {
MyVectorRow MyRow = (MyVectorRow) MyVector.elementAt(i);
MyRow.checkRule2(am, i);
It works, but quite strange ... is it a bug for calling the interface setWhereClauseParam(int, object)? As long as all the bind variables have value (your bind-var array is filled perhaps due to previous setWhereClauseParam, the query will work. What's critical is you get the right query every time :)

Where clause with Bind Variable in ViewObject

As per recomendations from Jdev team they say that using Bind varialbles in where clause will improve the performance (Option 1) But it is causing us to create more view objects.
Example : Lets say we have a View Object EmpVO
Option 1:
ViewObject vo=context.getViewObject("EmpVO");
vo.setWhereClause("EMPNO=?");
vo.setWhereClauseParam(0,st);
(or)
Option 2:
vo.setWhereClause("EMPNO="+st);
If we want to use same View Object "EmpVO" in another Action Class
ViewObject vo1=context.getViewObject("EmpVO");
vo1.setWhereClause("DEPTNO=?");
vo1.setWhereClauseParam(0,str);
It this case it throws an error saying BIND VARIABLE already exits. So we have to make another View Object.
Where as if we did not use bind variable but used Option 2 approach the same view object can be used in multiple pages.(at the expense of performance as per Jdev team)
Are we doing something wrong here or are there other ways to use the same view object when using bind variable in where clause.
Thanks

I haven't been using BC4J for a while, but I seem to recall that the recommendations are that you don't set the where clause at runtime: You're supposed to define your view with the bind parameter already in it.
So you'd probably define an EmpsForEmpNoVO and type "EMPNO = ?" in the where box. (There are other ways of finding a single row/entity and one of those may well be more efficient. Perhaps a better example of where you might want a view of employees is WHERE DEPTNO = ?.)
IIRC, all instances of a particular type of view share the same definition, so you have to be careful if you alter that at runtime. However, I think everything's set up so that you can have many different (and separate) resultsets for a single view (instance) - meaning that it's possible to "run" a view for (e.g.) two different ids. (It's definitely possible to create two different instances of a view from its definition - and the resultsets will definitely be separate then. I think there's a "create" method on the application module; I remember that "find..." always returns the same instance of the view.)
Hope that's a push in the right direction (since no-one else had replied - and I hope not too much has changed since 9.0.3)....
Mike.

Invalid number error for bind dialog

Oracle SQL Developer version 1.1.2.25 BUILD MAIN-25.79
Running under WinXP
Issue description:
We get an invalid number error when bind variable filled with an enter in the bind dialog

It is hard to say what is causing your problem without the specifics (ie query and value entered for the bind variable). Try running the same statement with the value of the bind variable in place of the bind variable (ie instead of running "select * from dual where dummy = :var" with a value of 'x' for :var, run "select * from dual where dummy = 'x'"). If you get the same error, then it is not an issue with the use of bind variables.
Be aware that currently you cannot define the data type of bind variables (unlike TOAD, etc) and they are all treated as character values. I wouldn't have thought that this would cause you problem unless you are using a bind variable to restrict a numeric column to a specific value and you are entering a non-numeric bind (ie "select * from people where person_id = :id" and using 'xyz' as the value for :id).

Error in Bind Variable

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