PreparedStatement - unknown number of parameters

Help!
I have to use PreparedStatement to access an oracle database. This statement should be able to handle a number of values for one parameter. For example the parameter is area and there is a number of counties the user can choose...
So i have a query statment like
select population from populatn where area IN('BEAVER', 'CACHE'......)
Here how do I use preparedstatement?
Sue

Yeah, that's always what they mean when they ask the
question. The answer is still no.right. when you have a variable number of parameters than you don't have a prepared statement anymore.
however if you want to get information about a prepared statement's parameters you can use getParameterMetaData method of PreparedStatement new in 1.4.

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Jsp unknown number of parameters; seriously need an idea

i have a jsp page where i query for a list of items in the DB and list them using forEach
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Product ID | Price | TextField where the user can enter how many they want
Product ID | Price | TextField where the user can enter how many they want
Product ID | Price | TextField where the user can enter how many they want
and finally theres a buy button on the bottom where it sends the info to servlet to figure out how many much of each product is purchased and outputs an invoice
how do i handle this when i don't know the number of products to start out with?
I won't have too many products; usually 5 to 8 at a time
how should i set up my INPUT NAME and VALUES?!
so i can post to my servlet and have it handle it easily?

hi friend,
when u display the products i think u will take same form fields
like if u have 10 products while displaying in the page u will take the array of form fields right...
when u submitt such page and move on to the other page for inserting the information
here u check which productid is checked .like
String productId[] = request.getParameterValues("productId");
String price[] = request.getParameterValues("price");
String quantity[] = request.getParameterValues("quantity");
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now u check like this
for(i=0;i<productId.length;i++)
if (productId==null)
break;
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proid=productId[i];
price=price[i];
quant=quantity[i];
// here call the insert method of the java program which u write
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the main problem with this coding is if u select 10 products u will go to database 10 times if u want to go to database only once pass the String Array of productId,Price and Quantity as a parameter to the insert method and check the selected product and insert.

Wrong number of parameters exception when using PreparedStatement

Hi,
I'm getting Wrong number of parameters exception when using a prepared statement. It's very weird. The code is:
sqlstmt="update blah1 set blah2=? where blah3=?";
myps = Conn.prepareStatement(sqlstmt);
myps.setString(1, p1);
myps.setInt(2, p2);
myps.executeUpdate(sqlstmt);
The error is:
SQLException: [IBM][CLI Driver] CLI0100E Wrong number of parameters. SQLSTATE=07001:07001
Could someone please help? Thanks
Mahdad

Hi and thanks for the reply.
Actually this is the try block...
The variable's defintions are correct.
PreparedStatement myps;
try {
sqlstmt="update blah1 set blah2=? where blah3=?";
myps = Conn.prepareStatement(sqlstmt);
myps.setString(1, blah4);
myps.setInt(2, blah5);
myps.executeUpdate(sqlstmt);
catch (SQLException e) {
System.out.println("SQLException: " + e.getMessage() + ":" + e.getSQLState());
blah6++;

Number of parameters unknown....

Hi Everyone
I am building my form ( question_form) depending on the results of my query. This makes it to be difficult to know the number of parameters that will be submitted when the user clicks on the submit button. Save_form is the name of the procedure that will store (insert into a table) the results of question_form when the user submits the form. I experience the problem calling save_form procedure since well I don’t know the number of parameters that it will have to receive. I thought of using the array but I am clueless of where to start……
Can anybody save my life on this regard.
Message was edited by:
Tshepza

... I don’t know the number of parameters that
it will have to receive. I thought of using the array
but I am clueless of where to start……
Can anybody save my life on this regard.
A good place to start is this:
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14260/toc.htm
and you can follow up with this:
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/collections.htm#i26701
HTH
pratz

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I am using SSRS 2008. I need to display an unknown number of unspecified images on the report.
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But then how do i get the report to display the images, when I do not know the name or number of images?
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Hi dukie4lif,
According to your description, you have a report to display images selected by users. Now your issue is, the users select a specific ID to get images, but you only have the path of images stored in your database. Is my understanding correct?
For your requirement, if the users want to get images by selecting a specific ID, this ID must be stored in database and associated with the path of those images. Otherwise the database can never query any records with this ID if it doesn’t have any ID stored.
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Wrong number of parameters

Whats wrong with this code?
     public void updateProduct(String id, String name, String description, String cost){
          Connection conn = null;
          DataSourceManager dataSource = new DataSourceManager();
          conn = dataSource.getConnection();
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          try {
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               stmt = conn.prepareStatement(updateString);
               stmt.setString(1, name);
               stmt.setString(2, description);
               stmt.setDouble(3, Double.parseDouble(cost));
               stmt.setString(4, id);
               stmt.executeUpdate(updateString);
               conn.commit();
          } catch (SQLException sqle) {
               sqle.printStackTrace();
I get:
COM.ibm.db2.jdbc.DB2Exception: [IBM][CLI Driver] CLI0100E Wrong number of parameters. SQLSTATE=07001
     at COM.ibm.db2.jdbc.app.SQLExceptionGenerator.throw_SQLException(SQLExceptionGenerator.java:256)
     at COM.ibm.db2.jdbc.app.SQLExceptionGenerator.throw_SQLException(SQLExceptionGenerator.java:193)
     at COM.ibm.db2.jdbc.app.SQLExceptionGenerator.check_return_code(SQLExceptionGenerator.java:444)
     at COM.ibm.db2.jdbc.app.DB2Statement.execute2(DB2Statement.java:435)
     at COM.ibm.db2.jdbc.app.DB2Statement.executeUpdate(DB2Statement.java:381)
     at com.ibm.ejs.cm.cache.CachedStatement.executeUpdate(CachedStatement.java:132)
     at com.ibm.ejs.cm.proxy.StatementProxy.executeUpdate(StatementProxy.java:190)
     at com.bright.coffeeplease.persistence.ProductPersister.updateProduct(ProductPersister.java:114)
     at com.bright.coffeeplease.product.UpdateProductServlet.doGet(UpdateProductServlet.java:24)
     at com.bright.coffeeplease.product.UpdateProductServlet.doPost(UpdateProductServlet.java:12)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.ibm.servlet.engine.webapp.StrictServletInstance.doService(ServletManager.java:827)
     at com.ibm.servlet.engine.webapp.StrictLifecycleServlet._service(StrictLifecycleServlet.java:159)
     at com.ibm.servlet.engine.webapp.IdleServletState.service(StrictLifecycleServlet.java:286)
     at com.ibm.servlet.engine.webapp.StrictLifecycleServlet.service(StrictLifecycleServlet.java:106)
     at com.ibm.servlet.engine.webapp.ServletInstance.service(ServletManager.java:472)
     at com.ibm.servlet.engine.webapp.ValidServletReferenceState.dispatch(ServletManager.java:1012)
     at com.ibm.servlet.engine.webapp.ServletInstanceReference.dispatch(ServletManager.java:913)
     at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:403)
     at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:227)
     at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:98)
     at com.ibm.servlet.engine.webapp.InvokerServlet.service(InvokerServlet.java:267)
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     at com.ibm.servlet.engine.webapp.ServletInstanceReference.dispatch(ServletManager.java:913)
     at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:403)
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     at com.ibm.servlet.engine.srt.WebAppInvoker.doForward(WebAppInvoker.java:67)
     at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:123)
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     at com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(OSEListener.java:315)
     at com.ibm.servlet.engine.http11.HttpConnection.handleRequest(HttpConnection.java:60)
     at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:313)
     at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:242)
     at com.ibm.ws.util.CachedThread.run(ThreadPool.java:122)

You don't want to call
stmt.executeUpdate(updateString)
You just want to call executeUpdate() - the prepared statement already knows what you're trying to do.
Hope this helps.
Incidentally, did you really mean "... WHERE PRODUCT_ID LIKE ?" rather than "... WHERE PRODUCT_ID = ?"

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<cffunction name="updateNote" output="false" access="remote" returntype="void" >
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record 1 :     material1$text1$text2$text3
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Hi,
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Edited by: jvsvijay on Jul 28, 2011 12:51 PM
Edited by: jvsvijay on Jul 28, 2011 12:53 PM
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=====================
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========================
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Last register request time :
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