Get multiple rows from mysql query in NetBeans

Hi, I am working on a project in NetBeans 6.I have a checkboxlist, and I have a variable in which I save the selected values of the checkboxlist.Now, I want to make a query that will get the rows of the rowset that have the same id as the selected values.for example, I have a checkboxlist that has the following values: Helen, Maria, Anna.The user checks the first two, so I have a variable String[] "checked" that has in it the data 1,2.Now, I have a rowset that has the following query:
SELECT ALL person.age
FROM person
WHERE person.id=? or something like this.I want the parameters to have the values (1,2) so that the rowset has the results of the ages of the two first rows.How do I accomplish that?I am assuming that with one "?" it can't be done because I need multiple parameters. Will something like this work: WHERE person.id IN something,but what will something be?

christomar wrote:
I have a rowset that has the following query:
SELECT ALL person.age
FROM person
WHERE person.id=? or something like this.I want the parameters to have the values (1,2) so that the rowset has the results of the ages of the two first rows.How do I accomplish that?Use a PreparedStatement. You probably first need to read the Sun JDBC Tutorial before you do anything.
I am assuming that with one "?" it can't be done because I need multiple parameters. I've seen people use up to 76 parameters so yes it can be done, it will look like this:
Will something like this work: WHERE person.id IN something,Yes, you can submit any SQL you want as long as your db supports it (all support ANSI i believe)
but what will something be?something in that context would be a list/set of data, but you're getting ahead of yourself I think. do the tutorial and look at some code

Similar Messages

How to get multiple rows from database table?

hello !
I need to get multiple rows from a OLEDB database table and display them on a table object.
I did "Wrap in subfrom" on the table, set subform of the table to "flowed", and checked "Repeat row for each data item" of Row1 of the table.
But I can get only one row on the table object.
I need your help.
Thanks

Hi,
best practices when deleting multiple rows is to do this on the business service, not the view layer for performance reasons. When you selected the rows to delete and press submit, then in a managed bean you access thetable instance (put a reference to a managed bean from the table "binding" property") and call getSeletedRowKeys. In JDeveloper 11g, ADF Faces returns the RowKeySet as a Set of List, where each list conatins the server side row key (e.g. oracle.jbo.Key) if you use ADF BC. Then you create a List (ArrayList) with this keys in it and call a method exposed on the business service (through a method activity in ADF) and pass the list as an argument. On the server side you then access the View Object that holds the data and find the row to delte by the keys in the list
Example 134 here: http://blogs.oracle.com/smuenchadf/examples/#134 provides you with the code
Frank

How to extract multiple rows from a query and how to populate it in form.

hi all,
i want to populate multiple rows fetched from a cursor into form.
i write this procedur.
PROCEDURE populate_q (v_t_no IN number) IS
cursor ext_q is
select test_question.no, q_no, text, ans1
from test_question , question
where test_question.no = v_t_no;
BEGIN
for ext_rec in ext_q loop
     :take_detail.q_no := ext_rec.q_no;
     :take_detail.question := ext_rec.text;
     EXIT WHEN ext_q%notfound;
     end loop;
END;
and call this WHEN-NEW-BLOCK-INSTANCE trigger.
this don't return all the rows only the lost one is populated
and shown in form.
thanks
Muhammad Nadeem
Mardan (pakistan)
[email protected]

Hi,
look for the next_record built-in. Your cusror only addresses the current row, but you want to create new rows as you go
Frank

HOW TO EXECUTE A STORE PROCEDURE THAT RETURN MULTIPLE ROWS FROM A QUERY

I NEED TO CREATE AND USE A STORE PROCEDURE THAT IS GOING TO DO A SELECT STATEMENT AN THE RESULT OF THE SELECT STATEMENT IS RETURN IN SOME WAY TO THE REQUESTER.
THIS CALL IS MADE BY AN EXTERNAL LANGUAGE, NOT PL/SQL OR FORMS APPLICATION. USING FOR EXAMPLE ODBC AND VISUAL BASIC. WHAT I NEED TO DO IS ADD A DATA ACCESS LAYER TO MY APPLICATION AND I ALREADY HAVE IT DONE FOR MS SQL SERVER, BUT I NEED THE SAME FUNCTIONALITY ACCESSING AN ORACLE DATABASE.
FLOW:
1. VB CREATE A ODBC CONNECTION TO A ORACLE DATABASE
2. VB EXECUTE A STORE PROCEDURE
3. THE STORE PROCEDURE RETURNS TO THE VB APPLICATION THE RESULT OF THE QUERY THAT IS INSIDE OF THE STORE PROCEDURE.(I.E. THE STORE PROCEDURE IS A BASIC SELECT, NOTHING COMPLEX)
4. VB DISPLAY THE RESULT IN A GRID
FOR SURE I CAN DO THE SELECT DIRECTLY TO ORACLE, BUT FOR PERFORMANCE REASONS AND SCALABILITY, I'LL LIKE IT TO DO IT USING A STORE PROCUDURES
IS THIS POSIBLE?, HOW?
THANKS

Certainly, it's possible. First, define a stored procedure that includes an OUT parameter which is a REF CURSOR. Then, call the stored procedure via ODBC omitting the OUT parameter from the list of parameters. IT will automatically be returned as a result set. Syntax for both is below...
CREATE PROCEDURE foo (inParam in varchar2, resultSet OUT REF CURSOR )
In ODBC:
{call foo( 'someData' )}
Justin

Updating, Adding, or Deleting rows from a query

So, I've got this page that originally was made of four
different forms. It worked great. But, then the client asked that I
"idiot proof" the page.
Originally, I had a form that enclosed a one-line table (with
Add & Clear buttons on the end) that took seven fields and
"added" a new record to the "tbljob" table.
That was followed with another form that created a table from
the results of a cfquery and listed all the rows from tbljob (with
Update/Delete buttons on the end of each row).
This worked fine when it was two separate forms. Now, I'm
trying to use only one "form" while displaying the two tables. The
buttons are now done with Javascript (so there are dialog boxes).
The problem is that I am getting a CF error message because the
insert, update, and delete commands are trying to pass the contents
of the fields as comma-delimited lists rather than the single data
item that is actually in each field. I am passing a hidden field
with each row that contains the "job_id".
I know the problem is that I'm not identifying each row as
being unique. I guess it's like I'm passing an "array" of data
rather than just a "row".
Basically, I just want to be able to display a blank row for
adding records followed by multiple rows from a query. The blank
row needs to have "Add" and "Cancel" buttons at the end and the
multi-row part has to have "Update" and "Delete" buttons on the end
of each row and manage the appropriate records.
It's got me stumped. TIA.

What you can do is try using <cfloop> to insert, update
and delete your information.
For instance deleting the information try this.

<cfloop index="JobIDs" list="#Job_ID#" delimiters=",">
<cfquery name="delteall" datasource="dbsource">
DELETE
FROM table
Where job_Id = #JobIDs#
</cfquery>
</cfloop>
Do the same for your inserting and updating.
Because what CF see is job_id = 1,2,3,4,5,6,7,8,9
SO you are looping over a list = #job_id# and delimiter is "
, " and we are calling the index JobIDs. JobIDs are the values - 1
2 3 4 5 6 ....
I hope this helps. As for the displaying of the images, use
if then statements:
<cfif isdefined("edittable") and edittable eq '"y">
Then display the query and outputs for the editing options
<cfelseif isdefined("deletetable") and addtable eq "y">
The dispaly the query and outputs for adding options
<cfelse>
Then display the query for outputing the delete options
</cfif>
So your link will have soemthing of this sort <a
href="samepage.cfm?deletetable=y">Add Table</a>
Hope this helps,
Sevor Klu

Pass multiple rows from sp to calling prog

I have a stored procedure using cursor to get multiple rows from the db, how can I pass these rows to the calling prog? Is the out variable returns the last row only?
This is what I did:
Create or replace procedure mysp (
var1 in number,
var2 OUT number,
) as
Cursor mycor is
select * from emp;
begin
for cors in mycor loop
var2 :=cors.ename;
end;
Thanks
null

I think you need to do in similar way as follows:
CREATE OR REPLACE PACKAGE sp_dev_sel_all_devicesPKG AS
TYPE RT1 IS RECORD (
sp_dev_id tbl_device.dev_id%TYPE,
sp_dev_name tbl_device.dev_name%TYPE,
sp_err_code tbl_error_messages.erm_id%TYPE,
sp_err_msg tbl_error_messages.erm_msg%TYPE
TYPE RCT1 IS REF CURSOR RETURN RT1;
END;
sho err
CREATE OR REPLACE PROCEDURE sp_dev_sel_all_devices (
in_usr_id IN tbl_user.usr_id%TYPE,
in_session_id IN tbl_user.usr_curr_session_id%TYPE,
RC1 IN OUT sp_dev_sel_all_devicesPKG.RCT1
) AS
ls_err_hint tbl_error_log.erl_err_hint%TYPE := 'BEGINING';
ls_err_code tbl_error_messages.erm_id%TYPE;
ls_err_msg tbl_error_messages.erm_msg%TYPE;
BEGIN
ls_err_hint := 'Check the timeout status of the user';
sp_utr_chk_timeout(UPPER(in_usr_id), in_session_id, 'sp_dev_sel_all_devices', ls_err_code, ls_err_msg);
ls_err_hint := 'Getting all Devices from tbl_device';
OPEN RC1 FOR
SELECT dev_id,
dev_name,
ls_err_code err_code,
ls_err_msg err_msg
FROM tbl_device
ORDER BY dev_name;
RETURN;
END;
sho err
Hope this works
r@m@

Pass multiple rows from sp to the calling prog

I have a stored procedure using cursor to get multiple rows from the db, how can I pass these rows to the calling prog? Is the out variable returns the last row only?
This is what I did:
Create or replace procedure mysp (
var1 in number,
var2 OUT number,
) as
Cursor mycor is
select * from emp;
begin
for cors in mycor loop
var2 :=cors.ename;
end;
Thanks
null

George:
You can use CURSOR VARIABLE to pass this
data type among PL/SQL or Java:
create or replace package pkg_a
as
TYPE c_emp REF CURSOR;
PROCEDURE mysp (var1 IN NUMBER,
c_var2 OUT c_emp);
END package pkg_a;
CREATE OR REPLACE PACKAGE BODY pka_a
AS
PROCEDURE mysp (var1 IN NUMBER,
c_var2 OUT c_emp)
IS
BEGIN
OPEN c_var2
FOR
SELECT * FROM emp;
END mysp;
END pkg_a;

How do I insert multiple rows from a single form ...

How do I insert multiple rows from a single form?
This form is organised by a table. (just as in an excel format)
I have 20 items on a form each row item has five field
+++++++++++ FORM AREA+++++++++++++++++++++++++++++++++++++++++++++++++++++
+Product| qty In | Qty Out | Balance | Date +
+------------------------------------------------------------------------+
+Item1 | textbox1 | textbox2 | textbox3 | date +
+ |value = $qty_in1|value= &qty_out1|value=$balance1|value=$date1 +
+------------------------------------------------------------------------+
+Item 2 | textbox1 | textbox2 | textbox4 | date +
+ |value = $qty_in2|value= $qty_out1|value=$balance2|value=$date2 +
+------------------------------------------------------------------------+
+ Item3 | textbox1 | textbox2 | textbox3 | date +
+------------------------------------------------------------------------+
+ contd | | | +
+------------------------------------------------------------------------+
+ item20| | | | +
+------------------------------------------------------------------------+
+ + + SUBMIT + ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Database Structure
+++++++++++++++++
+ Stock_tabe +
+---------------+
+ refid +
+---------------+
+ item +
+---------------+
+ Qty In +
+---------------+
+ Qty Out +
+---------------+
+ Balance +
+---------------+
+ Date +
+++++++++++++++++
Let's say for example user have to the use the form to enter all 10 items or few like 5 on their stock form into 4 different textbox field each lines of your form, however these items go into a "Stock_table" under Single insert transaction query when submit button is pressed.
Please anyone help me out, on how to get this concept started.

Hello,
I have a way to do this, but it would take some hand coding on your part. If you feel comfortable hand writing php code and doing manual database calls, specificaly database INSERT calls you should be fine.
Create a custom form using the ADDT Custom Form Wizard that has all the rows and fields you need. This may take a bit if you are adding the ability for up to 20 rows, as per your diagram of the form area. The nice thing about using ADDT to create the form is that you can setup the form validation at the same time. Leave the last step in the Custom Form Wizard blank. You can add a custom database call here, but I would leave it blank.
Next, under ADDT's Forms Server Behaviors, select Custom Trigger. At the Basic tab, you enter your custom php code that will be executed. Here you are going to want to put your code that will check if a value has been entered in the form and then do a database INSERT operation on the Stock_table with that row. The advanced tab lets you set the order of operations and the name of the Custom Trigger. By default, it is set to AFTER. This means that the Custom Trigger will get executed AFTER the form data is processed by the Custom Form Transaction.
I usually just enter TEST into the "Basic" tab of the Custom Trigger. Then set my order of operations in the "Advanced" tab and close the Custom Trigger. Then I go to the code view for that page in Dreamweaver and find the Custom Trigger function and edit the code manually. It's much easier this way because the Custom Trigger wizard does not show you formatting on the code, and you don't have to keep opening the Wizard to edit and test your code.
Your going to have to have the Custom Trigger fuction do a test on the submitted form data. If data is present, then INSERT into database. Here's a basic example of what you need to do:
In your code view, the Custom Trigger will look something like this:
function Trigger_Custom(&$tNG) {
if($tNG->getColumnValue("Item_1")) {
$item1 = $tNG->getColumnValue("Item_1");
$textbox1_1 = $tNG->getColumnValue("Textbox_1");
$textbox1_2 = $tNG->getColumnValue("Textbox_2");
$textbox1_3 = $tNG->getColumnValue("Textbox_3");
$date1 = $tNG->getColumnValue("Textbox_3");
$queryAdd = "INSERT INTO Stock_table
(item, Qty_In, Qty_Out, Balance, Date) VALUES($item1, $textbox1_1, $textbox1_2, $textbox1_3, $date1)"
$result = mysql_query($queryAdd) or die(mysql_error());
This code checks to see if the form input field named Item_1 is set. If so, then get the rest of the values for the first item and insert them into the database. You would need to do this for each row in your form. So the if you let the customer add 20 rows, you would need to check 20 times to see if the data is there or write the code so that it stops once it encounters an empty Item field. To exit a Custom Trigger, you can return NULL; and it will jump out of the function. You can also throw custom error message out of triggers, but this post is already way to long to get into that.
$tNG->getColumnValue("Item_1") is used to retrieve the value that was set by the form input field named Item_1. This field is named by the Custom Form Wizard when you create your form. You can see what all the input filed names are by looking in the code view for something like:
// Add columns
$customTransaction->addColumn("Item_1", "STRING_TYPE", "POST", "Item_1");
There will be one for each field you created with the Custom Form Wizard.
Unfortunately, I don't have an easy way to do what you need. Maybe there is a way, but since none of the experts have responded, I thought I would point you in a direction. You should read all you can about Custom Triggers in the ADDT documentation/help pdf to give you more detailed information about how Custom Triggers work.
Hope this helps.
Shane

FWD: Re: Retrieving multiple rows from a database into morethan

There are two ways to do this that I cn think of right off the bat.
One is to create a class of objects that can receive the entire row, and
give it methods that will return each of the individual objects that you are
looking for when called. If you use INTO :ARRAY, you get the advantage of
being able to pass the array anywhere in your system for the 'split up'
processing.
Two is to do basically the same thing, but instead doing the 'split up'
during a for loop. This will appear to slow down your query, however, as
extra processing will be occuring in terms of memory allocation and copying.
I'm sure there other approaches. This was simply what came to mind at
midnight, after a long day :-).
At 01:33 AM 6/4/96 +0000, you wrote:
Does anyone know of a way to retrieve multiple rows from a single table in an
RDB database into more than 1 object, using a single SQL call?
I have a single table that I wish to use some fields to populate one object
and some others to populate another.
The FOR clause only allows one object to be specified.
The INTO :ARRAY clause also seems to only allow one object to be specified.
I would appreciate any help.
Regads,
Steve Isaac
Hydro Electric Commission
Hobart TAS 7001
Australia
[email protected]
James Urquhart Voice: (510)869-3400
[email protected] Fax: (612)921-8243
Forte Consulting

wow, that was pleasant, the usual format goes:
Newb: I have a problem, fix it for me
Forum: Here's a link explaning the concept you obviously don't grasp
Newb: No, fix it FOR me
Forum: I'll fix you!
Newb: WAAAAH!
Forum: BAN!

How to get multiple values from the list

I've a list of an item which I queried it from the database. I also created a button that will takes a selected items from the list when it was clicked. I used javabean to get the data from database.
<%     // clicked on Select District Button
Vector vselectedDistrict = new Vector();
Vector vdistrictID = new Vector();
String tmpSelectDistrict = "";
tmpSelectDistrict = request.getParameter("bSelectDistrict");
if(tmpSelectDistrict != null)
     // get multiple values from the list
     String[] selectedDistrict = request.getParameterValues("usrTDistrict");
     vselectedDistrict.clear();
     vdistrictID.clear();
     if((selectedDistrict != null) && (selectedDistrict.length != 0))
                       for(int i=0;i<selectedDistrict.length;i++)
               vselectedDistrict.addElement(selectedDistrict);
          vdistrictID = dbaseInfo.getcurrentDistrictID(nstate,vselectedDistrict);
          for(int i=0;i<vdistrictID.size();i++)
               out.println("district = " + selectedDistrict[i]);                         out.println("district ID= " + vdistrictID.get(i).toString());
%>
// get vdistrict from the database here......
<select name="usrTDistrict" size="5" multiple>
<%     for(int i = 0; i< vdistrict.size(); i++)
%>
     <option value="<%=vdistrict.get(i).toString()%>"><%=vdistrict.get(i).toString()%></option>
<%
%>
</select>
<input type="submit" name="bSelectDistrict" value="Select District">
Lets say the item that i selected from the list is 'Xplace' and I clicked on the Select District button,
what I got is this error message:
org.apache.jasper.JasperException: Unable to convert string 'Xplace' to class java.util.Vector for attribute usrTDistrict: java.lang.IllegalArgumentException: Property Editor not registered with the PropertyEditorManager
So where is going wrong and what the message means?. Any help very much appreciated. Thanks

These are just guesses that might hopefully steer you in directions you haven't looked in yet.
I presume you used triangle brackets (< >) to avoid having the Jive Forum think it was the "italics" tag?
Are you certain this: dbaseInfo.getcurrentDistrictID(nstate,vselectedDistrict);
expects a Vector as its second parameter? And returns a Vector?
I don't believe you've shown how you use the javabean, or its code? Perhaps it should be rewritten to accept an array of strings instead of a Vector?

Retruring Multiple rows from a Stored Procedure

The Oracle JDBC documentation shows how to return a cursor pointer through the parameter list of a stored procedure allowing a Java program to use the cursor like a normal result set. I've tried it (using the thin driver) and it works fine - however, I'm having trouble getting this to work running the program under a Weblogic server (using their own JDBC implementation). So, I have two questions:
1) Has anyone had this problem before and solved it ??
2) Are there any other techniques for getting multiple rows back from the database without having to fire "raw" sql at it ?

Hi
You could return not resultset but array, for example:
PACKAGE TEST:
type string_table is table of varchar2(80)
index by binary_integer;
function get_something (
something1 out string_table,
arraylength in number
) return number;
PACKAGE'S BODY:
function get_something (
something1 out string_table,
arraylength in number /** length of the array **/
) return number as
cursor C is
select something1, ...
from test_table;
pos number := 1;
begin
for position in C loop
exit when (pos > arraylength);
something1(pos) := position.something1;
pos := pos + 1;
end loop;
return (pos - 1);
end;
Of course in this example you need to know length of your array
(arraylength parameter), but you can avoid such problem, for
example, by using DBMS_SQL package (or dynamic SQL feature in
the Oracle8i).
Andrew
Mladen Gogala (guest) wrote:
: Phil Hildebrand (guest) wrote:
: : Is there a way that I can return multiple rows from a stored
: : procedure for function ?
: : Something like:
: : CREATE FUNCTION sp_get_children (my_nip IN port.nip_num%
TYPE)
: : RETURN my_nip
: : IS
: : CURSOR child_cur IS
: : SELECT nip_num
: : FROM logical_port
: : WHERE port_num = my_nip;
: : child_rec child_cur%rowtype;
: : BEGIN
: : FOR child_rec IN child_cur
: : LOOP
: : RETURN my_nip;
: : END LOOP;
: : END tmp_sp_get_children;
: : I know how to do it in Informix ( RETURN WITH RESUME ), but
: I'm
: : not running Informix ;)
: : Thanks,
: : Phil
: In contrast with Informix, SQL Server and Sybase, Oracle
: can not return a result set. the only workaround is to
: return the cursor variable as such.
null

How to get multiple rows at one time in a table?

hi
I have a JTable bound with ViewObject and i use multiple selection mode setting to get selection row.
My question is when i select more then one row at one time i only can get those index from JTable but can't get those rows from ViewObject.is it possible to get rows from ViewObject? or how to use JTable row index to get row from ViewObject?

repost

Extract Multiple Rows from a Single Table into a Single Row in a New Table

I have a table in a database that contains contact data like name, address, phone number, etc.
The folks who designed the database and wrote the application wrote it so that all contact records are placed in that table, regardless of contact type. In fact, the contacts table does not even have a column for "type" even though there are many
different types of contacts present in that table.
I am trying to write a mail merge style report in SRSS, that gets sent to a specific type of contact, based on criteria provided that must be obtained from another table, and that data is then used to get back to a specific set of contacts from the contacts
table.
The attached file directly below describes my problem and all related information in an extremely detailed way.
SRSSMailMergeIssue.pdf
Unless there is a way to make a SRSS Tablix point to two different data sets in SRSS, it looks like I have to combine multiple rows from the same table into a new table.
If anyone can review the details in the attached pdf file and possibly point me in the direction I need to run to solve this probelm, I would greatly appreciate it.
I also included a document (below) that shows the tables I reference in the probelm description.
dbtables.pdf

I found a solution.... and posted it below
select
dk.ucm_docketnumber [UCM DocketNumber],
dk.ucm_docketid [UCM DocketID],
vc.FirstName [Victim FirstName],
vc.MiddleName [Victim MiddleName],
vc.LastName [Victim LastName],
vc.Suffix [Victim Suffix],
vc.Address1_Line1 [Victim AddressLine1],
vc.Address1_Line2 [Victim AddressLine2],
vc.Address1_Line3 [Victim AddressLine3],
vc.Address1_City [Victim City],
vc.Address1_StateOrProvince [Victim StateProvince],
vc.Address1_PostalCode [Victim Postalcode],
oc.FirstName [Offender FirstName],
oc.MiddleName [Offender MiddleName],
oc.LastName [Offender LastName],
oc.Suffix [Offender Suffix],
oc.Address1_Line1 [Offender AddressLine1],
oc.Address1_Line2 [Offender AddressLine2],
oc.Address1_Line3 [Offender AddressLine3],
oc.Address1_City [Offender City],
oc.Address1_StateOrProvince [Offender StateProvince],
oc.Address1_PostalCode [Offender Postalcode],
pc.FirstName [Arresting Officer FirstName],
pc.MiddleName [Arresting Officer MiddleName],
pc.LastName [Arresting Officer LastName],
pc.Address1_Line1 [Arresting Officer AddressLine1],
pc.Address1_Line2 [Arresting Officer AddressLine2],
pc.Address1_Line3 [Arresting Officer AddressLine3],
pc.Address1_City [Arresting Officer City],
pc.Address1_StateOrProvince [Arresting Officer StateProvince],
pc.Address1_PostalCode [Arresting Officer Postalcode]
FROM ucm_docket dk
left outer join ucm_victim v on dk.ucm_docketid = v.ucm_docketnumber
left outer join contact vc on vc.contactid = v.ucm_victimlookup
left outer join ucm_offender o on o.ucm_offenderid = dk.ucm_offenderlookup
left outer join contact oc on oc.contactid = o.ucm_individualid
left outer join contact pc on pc.contactid = dk.ucm_ArrestingOfficerLookup
WHERE (dk.ucm_docketnumber = @DocketNUM)

How to get first row from View Object cache.

hi,
I am using Jdeveloper 11.1.1.6
can we get first row from View Object cache??
Thanks in Advance.
Best
Shashidhar

Hi Frank,
Thanks for reply!!
My case is:
I have a Query based ViewObject.
One of the field is LOV and remaining fields are in ADF table. the LOV field is out side ADF table when i insert first record in ADF table and i choose LOV filed the value is selected.
when i create second row LOV value got refreshed because both are in same VO.
I need to get the LOV value of first row and set same value to second Row.
Shashidhar

How to get specific rows from the vo or Iterator in the backing bean?

Hi,
I have to get the specific number of rows from iterator in the backing bean. means i want to get the records from the VO or Iterator only from 5 th record to 10th record its like rownum in SQL.
We can use rownum in VO sql query. but there would be a performance issue with that ...
SO i am trying to get the rows from ADF Iterator once we fetch from DB.
Is it possible to do that ?
Do we have any way to set the pointer to the VO/Iterator like setFirst() and after that setMaxResult to retrun the rows between first and maxresult..
Thanks

If this is for pagination, then af:table offers pagination by design when you set accessmode=RangePaging or RangePagingIncremental in VO. Paginated queries are fired when scroll down in the table. Explore this option before you try out any custom solution
To answer the question,
Note: same logic i have implpemented ADF with EJB ..In EJB Query class we have setFirst(int) and setMaxResult(int) methods...simply i did setFirst(30) and setMaxResult(10)..It worked fine...Theoretically speaking the same can be achieved by setting setRangeStart() on the viewobject(which in turn sets to the default rowset) and by setting max fetch size on VO + accessmode=RangePaging. However when you use table with ADF binding, these will be overridden by the binding layer. If you are not using ADF binding, then the above is same as what you did for JPA entity. Other option is, you build expert mode VO with rownum for this special case, which will work if you dont need to set accessmode=RangePaging for VO.

Get multiple rows from mysql query in NetBeans

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