Scrollable Resultset

Hi,
I'm using Oracle ODBC Driver for Rdb 2.00.18.00. The Rdb version is 06.01.0400.
When using the JDBC ODBC bridge, I'm getting the error TYPE_FORWARD_ONLY when I try to use the previous() methods.
I tried this: stmt = conn.createStatement( ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY );
but still get the same error.
Any suggestions?
Thanks,
Paul

Is this a Java app? Why use Oracle ODBC and the bridge when you could use their 100% Java, type IV JDBC driver? It's free to download from Oracle after you register:
http://otn.oracle.com/software/tech/java/sqlj_jdbc/index.html

Similar Messages

Scrollable resultsets are not supported in my application

I want to use scrollable resultsets.But when i am writing the code
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
          String url = "jdbc:odbc:pmora";
          Connection con = DriverManager.getConnection(url,
"jbel", "jbel");
          Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_READ_ONLY);
ResultSet srs = stmt.executeQuery(
"SELECT COF_NAME, PRICE FROM COFFEES");
while (srs.next()) {
     String name = srs.getString("COF_NAME");
     float price = srs.getFloat("PRICE");
     System.out.println(name + " " + price);
To get support for scrollable resultsets, what driver we should use?Where we can get it?
#database is oracle 8
#driver version 2
#jdbcodbcbridgedriver
#While running the class, The followingmessage is getting displayed
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x6D366658
Function=[Unknown.]
Library=D:\j2sdk1.4.0_01\jre\bin\client\jvm.dll
NOTE: We are unable to locate the function name symbol for the error
just occurred. Please refer to release documentation for possible
reason and solutions.
Current Java thread:
     at sun.jdbc.odbc.JdbcOdbc.setStmtAttrPtr(Native Method)
     at sun.jdbc.odbc.JdbcOdbc.SQLSetStmtAttrPtr(JdbcOdbc.java:4676)
     at sun.jdbc.odbc.JdbcOdbcResultSet.setRowStatusPtr(JdbcOdbcResultSet.java:4473)
     at sun.jdbc.odbc.JdbcOdbcResultSet.initialize(JdbcOdbcResultSet.java:171)
     at sun.jdbc.odbc.JdbcOdbcStatement.getResultSet(JdbcOdbcStatement.java:423)
     - locked <02A3D7F0> (a sun.jdbc.odbc.JdbcOdbcStatement)
     at sun.jdbc.odbc.JdbcOdbcStatement.executeQuery(JdbcOdbcStatement.java:253)
     at ScrollableRS.main(ScrollableRS.java:27)
Dynamic libraries:
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0x77C70000 - 0x77CB0000      C:\WINNT\system32\GDI32.dll
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0x6D250000 - 0x6D25A000      D:\j2sdk1.4.0_01\jre\bin\JdbcOdbc.dll
0x1F7B0000 - 0x1F7E1000      C:\WINNT\System32\ODBC32.dll
0x77340000 - 0x773CB000      C:\WINNT\system32\COMCTL32.dll
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0x773D0000 - 0x77BC4000      C:\WINNT\system32\SHELL32.dll
0x71950000 - 0x71A34000      C:\WINNT\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.0.0_x-ww_1382d70a\comctl32.dll
0x1F850000 - 0x1F866000      C:\WINNT\System32\odbcint.dll
0x0AF30000 - 0x0AF99000      E:\Oracle\Ora81\BIN\SQORA32.DLL
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0x762A0000 - 0x762AF000      C:\WINNT\system32\MSASN1.dll
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Local Time = Thu May 15 14:59:26 2003
Elapsed Time = 5
# HotSpot Virtual Machine Error : EXCEPTION_ACCESS_VIOLATION
# Error ID : 4F530E43505002D5
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
# Java VM: Java HotSpot(TM) Client VM (1.4.0_01-b03 mixed mode)

You definitely don't need to be using the Sun JDBC-ODBC driver, as this will not support scrollable ResultSets. There are several drivers out there that do, ... for a list of drivers check out
http://industry.java.sun.com/products/jdbc/drivers

SQLException Scrollable Resultsets

Using JDeveloper 3.1, Weblogic 5.1, Oracle 8i
Successfully connecting to db and extracting data with vanilla prepared statements and resultsets. Not using Oracle proprietary classes.
Using oracle's classes12.zip and the ide classpath shows my classpath at the front.
Tried removing all of default JDeveloper libraries, with only my custom setup remaining.
The problem occurs at runtime from JDeveloper IDE. It all works perfectly from the command-line, but would like to have it work from IDE.
Trying to create a Scrollable Resultset from a prepared statement.
On the execution of the following statement:
pStmt = conn.prepareStatement(selectSql,
ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
Getting this error:
java.sql.SQLException: weblogic.rmi.extensions.RemoteRuntimeException: Undeclared checked exception - with nested exception:
[weblogic.rmi.ServerException: A remote exception occurred while executing the method on the remote object
- with nested exception:
[weblogic.rmi.MarshalException: error marshalling return
- with nested exception:
[java.io.IOException: Class weblogic.jdbc20.pool.PreparedStatement with code=123 does not implement Serializable, Externalizable or WLSerializable]]]
at weblogic.jdbc20.rmi.SerialConnection.prepareStatement(SerialConnection.java:342)
at aces.util.ResultsetTester.main(ResultsetTester.java, Compiled Code)
It appears that the IDE runtime or compiler is forcing some classpath in front of mine and giving me an outdated jar, zip, class appended to the front that I cannot pinpoint, and I have tried many things.
I do not want to use OracleResultSet just to test in the IDE. Everything works fine if I execute from the command line.
Any concrete suggestions?

You definitely don't need to be using the Sun JDBC-ODBC driver, as this will not support scrollable ResultSets. There are several drivers out there that do, ... for a list of drivers check out
http://industry.java.sun.com/products/jdbc/drivers

How to use the wl61sp2 of scrollable resultsets

wl61sp2 had already included mssqlserver4 , but it could not support for scrollable
resultsets. How about using scrollable resultsets in the wl61sp2 or install the
mssqlserver4v70rel510sp11 into the wl61sp2? If you can answer these questions,please
help me!!!thanks
Error:
java.sql.SQLException: java.sql.SQLException: This JDBC 2.0 method is not implemented
at weblogic.jdbc.rmi.SerialConnection.prepareStatement(SerialConnection.java:406)at jsp_servlet._adminwww.__t._jspService(__t.java:108)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at eblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at eblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm
pl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)

wangchuyun wrote:
>
wl61sp2 had already included mssqlserver4 , but it could not support for scrollable
resultsets. How about using scrollable resultsets in the wl61sp2 or install the
mssqlserver4v70rel510sp11 into the wl61sp2? If you can answer these questions,please
help me!!!thanksOur driver is only at the JDBC 1.0 level in functionality. For jdbc 2.0 compliance, I
recommend using either MS's new free type-4 driver or the good driver from
www.inetsoftware.de.
Joe
>
Error:
java.sql.SQLException: java.sql.SQLException: This JDBC 2.0 method is not implemented
at weblogic.jdbc.rmi.SerialConnection.prepareStatement(SerialConnection.java:406)at jsp_servlet._adminwww.__t._jspService(__t.java:108)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at eblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at eblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm
pl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)

Using Weblogic JDBC driver 5.1.0sp8 with MSSQL, throwing "abstract method" error when trying to use scrollable resultsets

I am using the weblogic driver with Allaire JRun.
Using these lines, I am trying to make my resultsets scrollable and updatable.
dbConnection.createStatement( ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE
ResultSet rs = queryStatement.executeQuery(query);
When I run the code, I get this error ..
java.lang.AbstractMethodError
at allaire.jrun.sql.ConnectionProxy.createStatement(../sql/ConnectionProxy.java:413)
at com.mindseye.utils.database.DBAccessor.executeQuery(DBAccessor.java:35)
at com.fao.shopping.tag.HandleShoppingCartTag.checkExists(HandleShoppingCartTag.java:635)
at com.fao.shopping.tag.HandleShoppingCartTag.doStartTag(HandleShoppingCartTag.java:90)
at jrun__jsp__shoppingbag2ejsp14._jspService(jrun__jsp__shoppingbag2ejsp14.java:45)
at allaire.jrun.jsp.HttpJSPServlet.service(../jsp/HttpJSPServlet.java:39)
at allaire.jrun.jsp.JSPServlet.service(../jsp/JSPServlet.java:228)
Everything works fine when I do not try and specify attributes to the statement
object. (i.e. dbConnection.createStatement();)
Anybody know what is going on?
thanks,
randy

Hi. I don't see our code anywhere in the stacktrace, but I'll assume
it's there somewhere. The basic fact is that our MS SQLServer driver
implements practically zero of the JDBC 2.0 methods. There is a way
to connect to this driver that has the methods defined, but then all
the difference will be that you'll get an exception saying 'this jdbc 2.0
method not implemented'.
Joe
randy shepherd wrote:
>
I am using the weblogic driver with Allaire JRun.
Using these lines, I am trying to make my resultsets scrollable and updatable.
dbConnection.createStatement( ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE
ResultSet rs = queryStatement.executeQuery(query);
When I run the code, I get this error ..
java.lang.AbstractMethodError
at allaire.jrun.sql.ConnectionProxy.createStatement(../sql/ConnectionProxy.java:413)
at com.mindseye.utils.database.DBAccessor.executeQuery(DBAccessor.java:35)
at com.fao.shopping.tag.HandleShoppingCartTag.checkExists(HandleShoppingCartTag.java:635)
at com.fao.shopping.tag.HandleShoppingCartTag.doStartTag(HandleShoppingCartTag.java:90)
at jrun__jsp__shoppingbag2ejsp14._jspService(jrun__jsp__shoppingbag2ejsp14.java:45)
at allaire.jrun.jsp.HttpJSPServlet.service(../jsp/HttpJSPServlet.java:39)
at allaire.jrun.jsp.JSPServlet.service(../jsp/JSPServlet.java:228)
Everything works fine when I do not try and specify attributes to the statement
object. (i.e. dbConnection.createStatement();)
Anybody know what is going on?
thanks,
randy

Problems setting scrollable ResultSet objects

Hi, I get an "cannot resolve symbol" error when I compile my code:
symbol : method createStatement (int)
location: interface java.sql.Connection
Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE);
^
I'm using j2sdk1.4.1_03, and j2sdkee1.3.1, which should include a fairly updated version of the sql package. Is there something else that I should include in my path variable?
thanks in advance.

There's nothing wrong with your installation or your setup (at least nothing related to this question). There is simply something wrong with your code. There are three versions of the createStatement() method in the Connection interface. There are versions with 0, 2, and 3 parameters. No version with 1 parameter, which is why the compiler can't find the method you coded. Check the API documentation for details.

Problem with scrollable resultset of oracle

I encountered problom like this:
when I use
s=createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
and getString of a resultset,I get the right data.
However ,when I use
s= createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
and getString of a ResultSet ,
if the type of the field is Date,then get right data.
if it is char or varchar2,then i get some thing like
0x313233,
all has been found in win2000&solaris
with oracle 8.1.6
thanks a lot!

Hello,
We've got the same problem.
It comes from the National Character Set of Oracle Database.
With WE8ISO8859P1, no problem with using this parameters.
But with WE8ISO8859P9, we have some hexadecimal return.
I don't know if it's works with another Character set, but with this, It doesn't work.
We're trying to find a solution. Because change the character set is not one.
Good luck.

Oracle Scrollable ResultSet Chinese Charater Help

I've got the same problems using Sun jdk 1.3.0 and WLS 6.0, with
Oracle 8.1.6 r2 and thin drivers 8.1.6 from Oracle.
I've changed to oracle thin drivers version 8.1.7 and
it works all fine.
I recommend you to update your drivers to 8.1.7 jdbc thin 2.0
version.
Regards
jsanz
"Richard" <[email protected]> wrote:

Updatable/scrollable java.sql.ResultSet + BC4J + Jdeveloper

Hi ,
Can any one help me out how to get Updatable/scrollable ResultSet in bc4j.
I want to count to total no of row in my application . so i have written below code ,
dbTrans = this.getDBTransaction();
PreparedStatement prpmd = dbTrans.createPreparedStatement(query,DBTransaction.DEFAULT);
ResultSet rst = prpmd.executeQuery();
if(rst.next())
if (rst.last())
totalRecods = rst.getRow()
but above code give the exception "Invalid operation for forward only resultset : last "

        String sql = "SELECT COUNT(*) FROM table";
        PreparedStatement prest = con.prepareStatement(sql);
        ResultSet rs = prest.executeQuery();
        while (rs.next()){
          records = rs.getInt(1);
        }not sure whether this will be feasible in your case.
else
Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE); //creates scrollable resultset
rs = stmt.executeQuery(sqlString);
// Point to the last row in resultset.
rs.last();
// Get the row position which is also the number of rows in the ResultSet.
int rowcount = rs.getRow();
//position to first
rs.beforeFirst();Note incase of 2nd style if the resultset has huge data then traversing to last will be a time consuming process.
You can also consider using CachedRowSet http://onjava.com/pub/a/onjava/2004/06/23/cachedrowset.html based on your requirement.

Resultset - retrieves all rows or only one at a time

Hey guys,
I am using oracle DB. Lets say the query i run has about 1000 records
when i call:
prepareStmt(cstmt);
Rsultset rs = cstmt.executeQuery();
Do I get all the records, or do i get them one by one
when i call
rs.next
is this DB specific??
This is simple q, but i been working with oracle and java for a while, and for some reason this never came up.
thank you.

The driver implementation is free to retrieve as many or as few rows at a time from the database as it wants. You can suggest to the driver how many rows at a time it should retrieve with setFetchSize(); the driver is free to ignore your suggestion (but many drivers honor it). The fetch size default varies wildly from driver to driver, from 1 row at a time to all rows at a once. For the Oracle thin driver, the default is 10, which is usually too small to give the best performance (I use between 100 and 1,000, usually 250).
Note that when you're working with a very large ResultSet, a driver that does "all rows at once" can cause you to run out of memory. Also, some drivers will cache every single row when using a scrollable ResultSet (and again run you out of memory) but not do so with a forward-only ResultSet (Oracle has this issue).

Array of ResultSets Problem

hi ,
esub[i] is an array of scrollable resultsets . where "i" is a premitive integer. When i remove the scrollable and updatable from the corresponding statement object the NullPointerException has gone . But later i need to compare the Resultsets among themselves , for which i need them to be scrollable .
One more problem is , can i give like this ,
for(;condition till the whole of array ;)
while(esub.next()){
// do something ..
while(esub[j].next()){
// do something ...
esub[j].first();
esub[i].first();
please tell me if u understood .I tried this way , but the second while loop i.e, while(esub[j].next()){ // do something } is not getting executed .Why ? Is there any other way of doing it .

import java.sql.*;
import java.io.*;
public class Gra
Gra(){ }
public float inputexp(){
               float exp =0 ;
               System.out.flush();
     try {
               BufferedReader bin;
               bin = new BufferedReader(new InputStreamReader(System.in));
               exp = Float.parseFloat(bin.readLine().trim());
          } catch(IOException ex) {
               System.out.println("Caught java.io.IOException:");
               System.out.println(ex.getMessage());
return exp;
public String inputname(){
     String name=null;
          System.out.flush();
     try {
               BufferedReader bin;
               bin = new BufferedReader(new InputStreamReader(System.in));
               name = bin.readLine().trim();
          } catch(IOException ex) {
               System.out.println("Caught java.io.IOException:");
               System.out.println(ex.getMessage());
return name;
public static void main(String args[]){
Gra summary = new Gra();
          String url = "jdbc:oracle:thin:@localhost:1521:ORCL";
     Connection con = null;
          try {
          Class.forName("oracle.jdbc.driver.OracleDriver");
          con = DriverManager.getConnection(url,"chandu","chandu");
System.out.println("Please Enter the Experiment name to compare the subexperiment results ");
PreparedStatement forsubno = con.prepareStatement("select id,number_of_subexperiments from experiment where name = ? ");
Statement stmt = con.createStatement();
Statement sub = con.createStatement();
Statement explevel = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
forsubno.setString(1,summary.inputname());
ResultSet expsubinfo = forsubno.executeQuery();
expsubinfo.next();
int subnum = expsubinfo.getInt(2);
String expid = expsubinfo.getString(1);
int [][] mat = new int [subnum] [subnum];
ResultSet [] esub = new ResultSet[subnum];
int i=0;
ResultSet subid = sub.executeQuery("select id from subexperiment where experiment_id = '"+ expid+"'");
System.out.println("Enter the lower expression level ----->");
float low = summary.inputexp();
System.out.println("Enter the upper expression level ----->");
float upper = summary.inputexp();
* Dynamic Resultsets according to the number of the subexperiments present in the given Experiment
while(subid.next()){
System.out.println(i);
System.out.println(subid.getString(1));
esub[i++] = explevel.executeQuery("select spot_id,expression_level from spotmeasurement where expression_level between "+ low + "and "+ upper + " and subexperiment_id = '" + subid.getString(1) + "'");
ResultSet rm,rn,rmg,rng;
* Comparing the Resultsets esub[] among themself for the number of same expressed genes present in common
for(int m=0;m<subnum;m++){
     for(int n=0;n<subnum;n++){
if(m!=n){
          while(esub[m].next()){
// System.out.println(esub[m].getString(1));
                                                  rm = stmt.executeQuery("select probe_id from spot where id ='"+esub[m].getString(1)+"'");
                                        rm.next();
                    rmg = stmt.executeQuery("select gene_id from geneasprobe where probe_id='"+rm.getString(1)+"'");
                                   rmg.next();
                                                  System.out.println(n);
                                        while(esub[n].next()){
     System.out.println(esub[n].getString(1));
                                             rn = stmt.executeQuery("select probe_id from spot where id ='"+esub[n].getString(1)+"'");
                                                       rn.next();
                                                  rng = stmt.executeQuery("select gene_id from geneasprobe where probe_id='"+rn.getString(1)+"'");
                                                       rng.next();
if(rmg.getString(1).equals(rng.getString(1))){
                                                                      mat[m][n]=mat[m][n]+1;
                                                            } //end of if
} //end of inner while
esub[n].beforeFirst();
                                   } //end of while
                                   esub[m].beforeFirst();
          } //end of if
     } //end of for
} //end of for
/** this is for the disply of the result */
for(int m=0;m<subnum;m++){
for(int n=0;n<subnum;n++){
          System.out.println(mat[m][n]+"\t");
          System.out.println("\n");
con.close();
catch(Exception ex){
                    StringWriter stringWriter = new StringWriter();
                    PrintWriter printWriter = new PrintWriter(stringWriter);
                    ex.printStackTrace(printWriter);
                    StringBuffer error = stringWriter.getBuffer();
                    printWriter.close();
                    System.err.print("Exception:"+ex );
                    System.err.println(ex.getMessage());
                    System.out.println("TRACE = " + error.toString());
} // end of main
}// end of Class Gra
this compiles with out any errors but when executed throws an exception . the error reads as
Exception:java.lang.NullPointerExceptionnull
TRACE = java.lang.NullPointerException
at oracle.jadbc.draver.UpdatableResultSet.next(UpdatableResultSet.java:249)
at Gra.main(Gra.java:103)
Can you please tell me whats wrong , If as you say this design is wrong the please suggest me your idea so that let me learn and correct boss.

How do I get the number of rows in a ResultSet?

I checked the API, but didn't find a method that does this.

You could try calling last() then getRow() to get the
no of rows ...You probably need a scrollable resultset to do this, so that you can
rewind back to the start and read the data in.
I imagine you want to get a count, to size an array, before reading in the data ? Why not load it in an arraylist, then convert to an array afterwards ?
regards,
Owen

Oracle JDBC Thin Driver Memory leak in scrollable result set

Hi,
I am using oracle 8.1.7 with oracle thin jdbc driver (classes12.zip) with jre 1.2.2. When I try to use the scrollable resultset and fetch records with the default fetch size, I run into memory leaks. When the records fetched are large(10000 records) over a period of access I get "outofmemory" error because of the leak. There is no use increasing the heap size as the leak is anyhow there.
I tried using optimizeit and found there is a huge amout of memory leak for each execution of scrollable resultsets and this memory leak is propotional to the no of records fetched. This memory leak is not released even when i set the resultset,statement objects to null. Also when i use methods like scrollabelresultset.last() this memory leak increases.
So is this a problem with the driver or i am doing some wrong.
If some of you can help me with a solution to solve this it would be of help. If needed i can provide some statistics of these memory leaks using optimize it and share the code.
Thanks
Rajesh

This thread is ancient and the original was about the 8.1.7 drivers. Please start a new thread. Be sure to include driver and database versions, stack traces, sample code and why you think there is a memory leak.
Douglas

How to get the row's size of ResultSet ?

i can't find a method to return the record number of a ResultSet.
how can i get it without using the next() method and select count(*) from sometable

If you use a scrollable ResultSet, you can do something like this:
               int currRow = rset.getRow();
               rset.last();
               int numRows = rset.getRow();
               if(currRow == 0)
                    rset.beforeFirst();
               else
                    rset.absolute(currRow);
[/code}

Subset of a ResultSet

I am trying to optimise my Database code. At step one I make a fetch on the data by getting all the info about all States in my Country table. Now having got a reference to this resultSet, I want to narrow down the ResultSet to contain rows only for the States that the user has selected.
Can anyone please suggest some way to do this without firing another query to the database.
I could have done this using a scrollable ResultSet and manipulated the data, but I don't want to. I just want to narrow down the ResultSet dynamically such that the ResultSet I get after narrowing down contains only the data for these states.

The user is selecting specific states but you are then getting the data for all the states anyways?
That is inefficient. And misses the point of using a database in the first place.
But if you must...
You have to create a loop that goes though all of the data. For each row you compare it to the data you have. If it matches you keep it. If it doesn't you discard it.
Once done with the loop you return the data you kept.

Scrollable Resultset

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