Invalid Operation on Forward Result Set.

Hi,
I got the ff exception when I tried to call data.beforeFirst().
EXCEPTION DESCRIPTION: java.sql.SQLException: Invalid operation for forward only resultset : last
INTERNAL EXCEPTION: java.sql.SQLException: Invalid operation for forward only resultset : last
ERROR CODE: 17075
Can somebody help me on how to resolve this issue.
I'm using JDBC driver version: 9.2.0.3.0.

In other words, are there issues when using calling stored procedures and loop through the results when using Oracle's JDBC driver?

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Doing set operations on Result Sets

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I am trying to make a table synchronization application.As far as specs go, There can be two similar tables in two different databases I will run a query on both the databases which will fetch me two separate resultsets, now I want to try doing set operations on this result sets like union, intersection etc. Is it at all possible? Is there a way to compare two resultsets efficiently? Can I some how tell my two resultsets to get the records which are not the same in both?

Not efficiently, no.

17076 : Invalid operation for read only resultset

Hi,
I am trying to update database table through java jdbc application.
But while running the program i am getting the error message " Invalid operation for read only resultset: updateString " with error code 17076.
My program is given below :
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Misc2 {
public static void main(String[] args) {
Connection con = null;
Statement stmt = null;
ResultSet rs = null;
try {
con = JDBCUtil.getOracleConnection();
stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
String query = "select * from employees";
rs = stmt.executeQuery(query);
while (rs.next()) {
String fname = rs.getString(3);
if (fname.equalsIgnoreCase("Elmer")) {
rs.updateString(3, "Mark");
rs.updateString(2, "Robert");
break;
} catch (SQLException ex) {
System.out.println("error code : " + ex.getErrorCode());
System.out.println("error message : " + ex.getMessage());
} finally {
JDBCUtil.cleanUp(con, stmt);
****JDBCUtil Class****
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class JDBCUtil {
public static Connection getOracleConnection(){
Connection con = null;
try{
// Load the driver
Class.forName("oracle.jdbc.driver.OracleDriver");
//Establish Connection
con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE","ex","ex");
}catch(Exception ex){
ex.printStackTrace();
return con;
public static void cleanUp (Connection con , Statement stmt){
// Release the resource
try{
if(con != null){
con.close();
if(stmt != null){
stmt.close();
}catch(Exception ex){
ex.printStackTrace();
Please help me to fix this issue.

>
But while running the program i am getting the error message " Invalid operation for read only resultset: updateString " with error code 17076.
>
Your result using 'SELECT *' is not updateable. Gimbal2 was pointing you in the right direction. You have to specify the columns in the select list to get an updateable result set.
You also need to use 'updateRow()' to update the database and have a commit somewhere to keep the results.
This code works for me. Note that I added an explicit SELECT list, the 'updateRow()' method and an explicit COMMIT.
    try {
        con = getOracleConnection();
        stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
//        String query = "select * from employees";
        String query = "select first_name from employees"; -- added explicit SELECT list
        rs = stmt.executeQuery(query);
        while (rs.next()) {
            String fname = rs.getString(1);
            if (fname.equalsIgnoreCase("Adam")) {
                rs.updateString(1, "Mark");
                rs.updateRow();                                    -- need this statement to actually update the database
//                rs.updateString(2, "Robert");
                break;
        con.commit(); -- added explicit commit for testing
    } catch (SQLException ex) {See Performing an UPDATE Operation in a Result Set in the 'Updating Result Sets' section of the JDBC Developer's Guide and Reference
http://docs.oracle.com/cd/B28359_01/java.111/b31224/resltset.htm#i1024720
As gimbal2 also alluded it is considered poor practice to use column numbers to perform result set operations when you don't know for certain what column a given number refers to. Before people start jumping all over that statement let me clarify it. The key part is KNOWING what column you are referencing. It is more performant to access result column columns by column number rather than by column name since the methods that take a column name call the integer method under the covers anyway but have to search the array of column names in order to get the column number.
With your query (SELECT *) there is no way to be sure the column order is the same since the table could be redefined with the columns in a different order or certain columns having been deleted. So for performance LOOP processing column numbers are used inside the loop but those column numbers are determined by using the metadata BEFORE the loop to convert column names to column numbers.
That way you code (BEFORE the loop) can use column names but you use a set of integer variables (one for each column) for the actual access inside the loop.

Invalid Operation on F

Hi,
I got the ff exception when I tried to call data.beforeFirst().
EXCEPTION DESCRIPTION: java.sql.SQLException: Invalid operation for forward only resultset : last
INTERNAL EXCEPTION: java.sql.SQLException: Invalid operation for forward only resultset : last
ERROR CODE: 17075
Can somebody help me on how to resolve this issue.
I'm using JDBC driver version: 9.2.0.3.0.

I'm using the scrollable cursor. Below is the code snippet.
          ReadAllQuery raq = new ReadAllQuery(A.class, exp);
          raq.addOrdering(addr.get("Afield").descending());
          raq.addOrdering(addr.get("AfieldNo").ascending());
               raq.useScrollableCursor();
               orgVec = (ScrollableCursor)session.executeQuery(raq);
I appreciate if you can help.
Thanks!

The requested operation is not supported on forward only result sets.

hi,
com.microsoft.sqlserver.jdbc.SQLServerException: The requested operation is not supported on forward only result sets when using rs.relative() method. this exception occurs when using com.microsoft.sqlserver.jdbc
st = con.createStatement();
rs= st.executeQuery("select * from emp1");
rs.relative(2);
regards,
gopi

I suggest you use the following instead of 'relative'. Its a more standard way of doing it.
while(rs.next()){
String x1=rs.getString("firstName");
}

The operation is not allowed for result set type FORWARD_ONLY

Hi,
I am trying to use scroll insensitive resultset in following manner-
Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);
ResultSet rs = stmt.executeQuery("some sql here");
rs.last();
but the rs.last() throws this exception-
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     at com.sap.dbtech.jdbc.ResultSetSapDB.last(ResultSetSapDB.java:557)
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Driver Version: MaxDB JDBC Driver, MySQL MaxDB, 7.6.0    Build 030-000-005-567
This used to work with 7.5 version driver. Why this is failing with 7.6 driver, any clues?
Thanks,
Vinod

Hi Vinod,
due to performance improvement when using forward only cursor we changed the default for the resultset type from TYPE_SCROLL_SENSITIVE to TYPE_FORWARD_ONLY starting with JDBC driver version 7.6. So I guess the exception comes from a statement where you didn't set the resultset type while creating it. Please check if all of the statements that you want to be scrollable have set the correct resultset type.
Regards,
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DiscoverSQL2005DBEngineDiscovery.vbs : The Query 'select * from __NAMESPACE where Name ='ComputerManagement'' returned an invalid result set.

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And for the further better assistance regarding this issue, you may want to post Operations Manager forum here.
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at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
at System.Net.Browser.ClientHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Net.WebClient.GetWebResponse(WebRequest request, IAsyncResult result)
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at System.Net.WebClient.DownloadStringOperationCompleted(Object arg)
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try
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string error = e.Error.Message;
string functionCall = e.UserState.ToString();
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if (functionCall == "getProductCode")
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serverProducts = productsList.products.Select(p =>
new BE.Product
Product_code = p.PID,
Product_name = p.Name
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if (DataDownloadCompleted != null)
if(functionCall =="getProductCode")
DataDownloadCompleted(this, new BE.StringEventArgs("getProductCode"));
catch (Exception)
throw;
public void searchProductCode(string productName)
try
if (DeviceNetworkInformation.IsNetworkAvailable && DeviceNetworkInformation.IsCellularDataEnabled)
wc.DownloadStringAsync(new Uri(baseURI + "get_products_json.php?search=" + productName), "getProductCode");
else
throw new Exception(FitnessApp.Resources.AppResources.ErrorServerConnection);
catch (Exception )
throw ;
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thank you..

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[PWS0007] Operation result set not found.

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When I am using my application with multiple users hitting the submit at the same time,I am getting
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Message was edited by: user12110856

SCROLL_SENSITIVE result set can't see the data inserted.

hi all ,
I am trying to display all the latest data available in the table through SCROLL_SENSITIVE and UPDATABLE result set after inserting a new record in the table.
But the result set obtained after executing the query initially is not able to see the newly inserted record in the table and hence same result is getting printed out in both the cases.
Can u explain me what's happening in this case ?? And how can i get the updated record also without executing the statement query twice to get the latest result set.
My full code is given below.
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Misc3 {
public static void main(String[] args) {
Connection con = null;
Statement stmt = null;
ResultSet rs = null;
try {
int empid;
String lname;
String fname;
int deptno;
int mngrid;
con = JDBCUtil.getOracleConnection();
stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
String query = "select employee_id , last_name , first_name , department_number , manager_id from employees ";
rs = stmt.executeQuery(query);
System.out.println("Before inserting the new record.....");
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empid = rs.getInt(1);
lname = rs.getString(2);
fname = rs.getString(3);
deptno = rs.getInt(4);
mngrid = rs.getInt(5);
System.out.println(empid + "\t" + lname + "\t" + fname + "\t" + deptno + "\t" + mngrid);
System.out.println("Going to insert the new record.....");
rs.moveToInsertRow();
rs.updateInt(1, 10);
rs.updateString(2, "Clark");
rs.updateString(3, "John");
rs.updateInt(4, 2);
rs.updateInt(5, 2);
rs.insertRow();
System.out.println("New record inserted successfully.....");
System.out.println("After inserting the new record.....");
rs.beforeFirst();
while (rs.next()) {
empid = rs.getInt(1);
lname = rs.getString(2);
fname = rs.getString(3);
deptno = rs.getInt(4);
mngrid = rs.getInt(5);
System.out.println(empid + "\t" + lname + "\t" + fname + "\t" + deptno + "\t" + mngrid);
} catch (SQLException ex) {
System.out.println("error code : " + ex.getErrorCode());
System.out.println("error message : " + ex.getMessage());
} finally {
JDBCUtil.cleanUp(con, stmt);
*** JDBCUtil Class ****
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class JDBCUtil {
public static Connection getOracleConnection(){
Connection con = null;
try{
// Load the driver
Class.forName("oracle.jdbc.driver.OracleDriver");
//Establish Connection
con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE","ex","ex");
}catch(Exception ex){
ex.printStackTrace();
return con;
public static void cleanUp (Connection con , Statement stmt){
// Release the resource
try{
if(con != null){
con.close();
if(stmt != null){
stmt.close();
}catch(Exception ex){
ex.printStackTrace();
Edited by: user12848632 on Aug 13, 2012 2:06 PM

>
Can u explain me what's happening in this case ?? And how can i get the updated record also without executing the statement query twice to get the latest result set.
>
Sure - but you could have answered your own question if you had read the doc link I gave you in your other thread and next time you post code use \ tags on the lines before and after the code - see the FAQ for info
17076 : Invalid operation for read only resultset
{quote}
•Internal INSERT operations are never visible, regardless of the result set type.
{quote}
See •Seeing Database Changes Made Internally and Externally in the JDBC Dev doc I pointed you to
http://docs.oracle.com/cd/B28359_01/java.111/b31224/resltset.htm#i1024720
Did you notice the words 'never visible'? You won't see them as part of the result set unless you requery.

Update Result Set

Hi,
I want to update a row from a table through it's result set, using the following code:
stmt=con.createStatement(ResultSet.TYPE_FORWARD_ONLY,ResultSet.CONCUR_UPDATABLE);
rs=stmt.executeQuery(" select * from region_info");
rs.next();
rs.updateString("DETAILS","malaysia");
rs.updateRow();
using jdbc2.0...
But it gives the following error:
java.sql.SQLException: Invalid operation for read only resultset: updateString at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:210) at oracle.jdbc.driver.BaseResultSet.updateString(BaseResultSet.java:235) at oracle.jdbc.driver.OracleResultSet.updateString(OracleResultSet.java:2647) at test.main(test.java:61)
wht's this pblm?
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create a statement with resultSetConcurrency = ResultSet.CONCUR_UPDATABLE :
Statement stmt = con.createStatement( ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
ResultSet rs = stmt.executeQuery("SELECT a, b FROM TABLE2");

"Invalid op for forward-only resultset : last"

I am trying to use the oracle jdbc drivers in classes12.zip to connect to an Oracle 8.0.6 database. The documentation for classes12.zip says that these drivers allow scrollable ResultSets, but whenever I try to use ResultSet.absolute(), ResultSet.relative(), ResultSet.first(), or ResultSet.last(), I get SQLException : "Invalid op for forward-only resultset : last"
Is there something special I need to do to my statement or resultset object to enable a scrollable ResultSet? My code looks like this:
Class.forName("oracle.jdbc.driver.OracleDriver");
String userID = "scott";
String passwd = "tiger";
//I'm certain I have the correct
//connection data in the
//real version of this program
Connection con = DriverManager.getConnection("jdbc:oracle:thin:@XXX:XXX", userID, passwd);
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("select * from mytable");
Any suggestions?
null

What if I was using a CallableStatement (prepareCall() & execute()) to get my result set as a return value from a PL/SQL procedure instead of above case where a Statement (createStatement() & executeQuery()) were used. How can I make the ResulSet be scrollable? Please see below sample code.
CallableStatement cstmt = dbConn.conn.prepareCall("{ ? = call pkg_MyPkg.fn_MyFn }", ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);
cstmt.registerOutParameter(1, OracleTypes.CURSOR);
boolean b = cstmt.execute();
OracleCallableStatement tstmt = OracleCallableStatement)cstmt;
ResultSet cursor = tstmt.getCursor (1);
// this works AOK
while (cursor.next ())
System.out.println(cursor.getString(1));
// the following does not work
b = rsetGetFn.first();
System.out.println(cursor.getString(1));
b = rsetGetFn.last();
System.out.println(cursor.getString(1));
The call cursor.getType() returns ResultSet.TYPE_FORWARD_ONLY, how can I get it to be ResultSet.TYPE_SCROLL_INSENSITIVE or ResultSet.TYPE_SCROLL_SENSITIVE?
Any help will be apreciated.
V/R,
-aff
null

Result set problem with GROUP BY

hi there, this should be the simplest of queries but.........
when run, the list size is 13, this is the number of letting units in the table. it appears not to be grouping by the property id.if it was doing this there should only be 8 rows. having said this, the while loop should output the count of each row, it does this 8 times with the correct counts. it then crashes with a invalid curser error. it appears the query is workig correctly but the resultset thinks its got 13 rows when it only has 8.
accessing ms access db
using jdbc:odbc
heres the code
searchResults = stmt.executeQuery(
"SELECT Count(*) AS FreeUnits " +
"FROM letting_units " +
"GROUP BY letting_units.property_id");
searchResults.last();
listSize = searchResults.getRow();
searchResults.beforeFirst();
System.out.println(listSize);
while (searchResults.next())
System.out.println(searchResults.getString(1));
hope someone can help me
cheers
andy

It's not the problem with GROUP BY. You should use scrollable result set to move in both directions (forward and backward).
In your code
searchResults.beforeFirst(); line may return false. So you will get the searchResults.next() false. Once you move forward in non-scrollable cursor cannot come back. So when you create the statement object use TYPE_SCROLL_INSENSITIVE or TYPE_SCROLL_SENSITIVE constants provided in the ResultSet.

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I have a class where i do all database operation .First i fire select query and take values from result set and based on that value i fire update query.
Problem is that i am not getting all values from result set . i get only last value and when i fire update query i get error as :Resultset is closed.
I am using acess and java.

You probably are using the same Statement object for both queries? Try creating separate Statement objects for each query. (My guess is this a problem with the way you're using JDBC, not a Servlet issue.)

Invalid Operation on Forward Result Set.

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